I am moving my comment to an answer since it appears to be helpful.
To avoid issues with IIS aliases, remove /swagger/ from the URL path. It should look like this:
app.UseSwaggerUI(c => { c.SwaggerEndpoint("v1/swagger.json", "API name"); });
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
.AddJsonOptions(options => {
var resolver = options.SerializerSettings.ContractResolver;
if (resolver != null)
(resolver as DefaultContractResolver).NamingStrategy = null;
});
services.AddDbContext<PaymentDetailContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DevConnection"))); //Dependency Injection
// options => options.UseSqlServer() Lamda Expression
services.AddCors(options =>
{
options.AddPolicy(MyAllowSpecificOrigins,
builder =>
{
builder.WithOrigins("http://localhost:4200").AllowAnyHeader()
.AllowAnyMethod(); ;
});
});
I managed to do this from my Activity where i'm setting my Rv and not from the adapter
If someone need to do something similar here's the code
In this case the color changes on a logClick
@Override
public void onLongClick(View view, int position) {
Toast.makeText(UltimasConsultasActivity.this, "Item agregado a la lista de mails",
Toast.LENGTH_SHORT).show();
sendMultipleMails.setVisibility(View.VISIBLE);
valueEmail.setVisibility(View.VISIBLE);
itemsSeleccionados.setVisibility(View.VISIBLE);
listaEmails.add(superListItems.get(position));
listaItems ="";
NameOfyourRecyclerInActivity.findViewHolderForAdapterPosition(position).NameOfYourViewInTheViewholder.setBackgroundColor((Color.parseColor("#336F0D")));
for(int itemsSelect = 0; itemsSelect <= listaEmails.size() -1; itemsSelect++){
listaItems += "*"+listaEmails.get(itemsSelect).getDescripcion() + "\n";
}
itemsSeleccionados.setText("Items Seleccionados : "+ "\n" + listaItems);
}
}));
I know this is old but given the IOptions patterns is relatively simple to implement:
Class with public get/set properties that match the settings in the configuration
public class ApplicationSettings
{
public string UrlBasePath { get; set; }
}
register your settings
public void ConfigureServices(IServiceCollection services)
{
...
services.Configure<ApplicationSettings>(Configuration.GetSection("ApplicationSettings"));
...
}
inject via IOptions
public class HomeController
{
public HomeController(IOptions<ApplicationSettings> appSettings)
{ ...
appSettings.Value.UrlBasePath
...
// or better practice create a readonly private reference
}
}
I'm not sure why you wouldn't just do this.
If AddDbContext is used, then also ensure that your DbContext type accepts a DbContextOptions object in its constructor and passes it to the base constructor for DbContext.
The error message says your DbContext
(LogManagerContext
) needs a constructor which accepts a DbContextOptions
. But i couldn't find such a constructor in your DbContext
. So adding below constructor probably solves your problem.
public LogManagerContext(DbContextOptions options) : base(options)
{
}
Edit for comment
If you don't register IHttpContextAccessor
explicitly, use below code:
services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
you can use LayoutInflater to inflate your dynamic data as a layout file.
UPDATE : first create a LinearLayout inside your CardView's layout and assign an ID for it.
after that create a layout file that you want to inflate. at last in your onBindViewHolder
method in your "RAdaper" class. write these codes :
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = mInflater.inflate(R.layout.my_list_custom_row, parent, false);
after that you can initialize data and ClickListeners with your RAdapter Data. hope it helps.
Having just encountered this on Arch Linux 4.13.3, I solved the issue by simply reinstalling semver
:
pacman -S semver
The problem is RecyclerView.Adatper
does not provide any methods that return the index of element
public abstract static class Adapter<VH extends ViewHolder> {
/**
* returns index of the given element in adapter, return -1 if not exist
*/
public int indexOf(Object elem);
}
My workaround is to create a map instance for (element, position)s
public class FriendAdapter extends RecyclerView.Adapter<MyViewHolder> {
private Map<Friend, Integer> posMap ;
private List<Friend> friends;
public FriendAdapter(List<Friend> friends ) {
this.friends = new ArrayList<>(friends);
this.posMap = new HashMap<>();
for(int i = 0; i < this.friends.size(); i++) {
posMap.put(this.friends.get(i), i);
}
}
public int indexOf(Friend friend) {
Integer position = this.posMap.get(elem);
return position == null ? -1 : position;
}
// skip other methods in class Adapter
}
Friend
) should implements hashCode()
and equals()
because it is key in hashmap.when an element changed,
void someMethod() {
Friend friend = ...;
friend.setPhoneNumber('xxxxx');
int position = friendAdapter.indexOf(friend);
friendAdapter.notifyItemChanged(position);
}
It is good to define an helper method
public class FriendAdapter extends extends RecyclerView.Adapter<MyViewHolder> {
public void friendUpdated(Friend friend) {
int position = this.indexOf(friend);
this.notifyItemChanged(position);
}
}
Map instance(Map<Friend, Integer> posMap
) is not necessarily required.
If map is not used, looping throughout list can find the position of an element.
This problem is caused by RecyclerView Data modified in different thread
Can confirm threading as one problem and since I ran into the issue and RxJava is becoming increasingly popular: make sure that you are using .observeOn(AndroidSchedulers.mainThread())
whenever you're calling notify[whatever changed]
code example from adapter:
myAuxDataStructure.getChangeObservable().observeOn(AndroidSchedulers.mainThread()).subscribe(new Observer<AuxDataStructure>() {
[...]
@Override
public void onNext(AuxDataStructure o) {
[notify here]
}
});
This is a general answer for future visitors. The various ways to update the adapter data are explained. The process includes two main steps every time:
#Insert single item
Add "Pig" at index 2
.
String item = "Pig";
int insertIndex = 2;
data.add(insertIndex, item);
adapter.notifyItemInserted(insertIndex);
#Insert multiple items
Insert three more animals at index 2
.
ArrayList<String> items = new ArrayList<>();
items.add("Pig");
items.add("Chicken");
items.add("Dog");
int insertIndex = 2;
data.addAll(insertIndex, items);
adapter.notifyItemRangeInserted(insertIndex, items.size());
#Remove a single item
Remove "Pig" from the list.
int removeIndex = 2;
data.remove(removeIndex);
adapter.notifyItemRemoved(removeIndex);
#Remove multiple items
Remove "Camel" and "Sheep" from the list.
int startIndex = 2; // inclusive
int endIndex = 4; // exclusive
int count = endIndex - startIndex; // 2 items will be removed
data.subList(startIndex, endIndex).clear();
adapter.notifyItemRangeRemoved(startIndex, count);
#Remove all items
Clear the whole list.
data.clear();
adapter.notifyDataSetChanged();
#Replace old list with the new list
Clear the old list then add a new one.
// clear old list
data.clear();
// add new list
ArrayList<String> newList = new ArrayList<>();
newList.add("Lion");
newList.add("Wolf");
newList.add("Bear");
data.addAll(newList);
// notify adapter
adapter.notifyDataSetChanged();
The adapter
has a reference to data
, so it is important that I didn't set data
to a new object. Instead, I cleared the old items from data
and then added the new ones.
#Update single item
Change the "Sheep" item so that it says "I like sheep."
String newValue = "I like sheep.";
int updateIndex = 3;
data.set(updateIndex, newValue);
adapter.notifyItemChanged(updateIndex);
#Move single item
Move "Sheep" from position 3
to position 1
.
int fromPosition = 3;
int toPosition = 1;
// update data array
String item = data.get(fromPosition);
data.remove(fromPosition);
data.add(toPosition, item);
// notify adapter
adapter.notifyItemMoved(fromPosition, toPosition);
#Code
Here is the project code for your reference. The RecyclerView Adapter code can be found at this answer.
MainActivity.java
public class MainActivity extends AppCompatActivity implements MyRecyclerViewAdapter.ItemClickListener {
List<String> data;
MyRecyclerViewAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// data to populate the RecyclerView with
data = new ArrayList<>();
data.add("Horse");
data.add("Cow");
data.add("Camel");
data.add("Sheep");
data.add("Goat");
// set up the RecyclerView
RecyclerView recyclerView = findViewById(R.id.rvAnimals);
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
layoutManager.getOrientation());
recyclerView.addItemDecoration(dividerItemDecoration);
adapter = new MyRecyclerViewAdapter(this, data);
adapter.setClickListener(this);
recyclerView.setAdapter(adapter);
}
@Override
public void onItemClick(View view, int position) {
Toast.makeText(this, "You clicked " + adapter.getItem(position) + " on row number " + position, Toast.LENGTH_SHORT).show();
}
public void onButtonClick(View view) {
insertSingleItem();
}
private void insertSingleItem() {
String item = "Pig";
int insertIndex = 2;
data.add(insertIndex, item);
adapter.notifyItemInserted(insertIndex);
}
private void insertMultipleItems() {
ArrayList<String> items = new ArrayList<>();
items.add("Pig");
items.add("Chicken");
items.add("Dog");
int insertIndex = 2;
data.addAll(insertIndex, items);
adapter.notifyItemRangeInserted(insertIndex, items.size());
}
private void removeSingleItem() {
int removeIndex = 2;
data.remove(removeIndex);
adapter.notifyItemRemoved(removeIndex);
}
private void removeMultipleItems() {
int startIndex = 2; // inclusive
int endIndex = 4; // exclusive
int count = endIndex - startIndex; // 2 items will be removed
data.subList(startIndex, endIndex).clear();
adapter.notifyItemRangeRemoved(startIndex, count);
}
private void removeAllItems() {
data.clear();
adapter.notifyDataSetChanged();
}
private void replaceOldListWithNewList() {
// clear old list
data.clear();
// add new list
ArrayList<String> newList = new ArrayList<>();
newList.add("Lion");
newList.add("Wolf");
newList.add("Bear");
data.addAll(newList);
// notify adapter
adapter.notifyDataSetChanged();
}
private void updateSingleItem() {
String newValue = "I like sheep.";
int updateIndex = 3;
data.set(updateIndex, newValue);
adapter.notifyItemChanged(updateIndex);
}
private void moveSingleItem() {
int fromPosition = 3;
int toPosition = 1;
// update data array
String item = data.get(fromPosition);
data.remove(fromPosition);
data.add(toPosition, item);
// notify adapter
adapter.notifyItemMoved(fromPosition, toPosition);
}
}
#Notes
notifyDataSetChanged()
, then no animation will be performed. This can also be an expensive operation, so it is not recommended to use notifyDataSetChanged()
if you are only updating a single item or a range of items.#Further study
Since it is not really clear from your question what exactly you are having trouble with, I wrote up this quick walkthrough about how to implement this feature; if you still have questions feel free to ask.
I have a working example of everything I am talking about here in this GitHub Repository.
If you want to know more about the example project visit the project homepage.
In any case the result should looks something like this:
If you first want to play around with the demo app you can install it from the Play Store:
Anyway lets get started.
SearchView
In the folder res/menu
create a new file called main_menu.xml
. In it add an item and set the actionViewClass
to android.support.v7.widget.SearchView
. Since you are using the support library you have to use the namespace of the support library to set the actionViewClass
attribute. Your xml file should look something like this:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/action_search"
android:title="@string/action_search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="always"/>
</menu>
In your Fragment
or Activity
you have to inflate this menu xml like usual, then you can look for the MenuItem
which contains the SearchView
and implement the OnQueryTextListener
which we are going to use to listen for changes to the text entered into the SearchView
:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
final MenuItem searchItem = menu.findItem(R.id.action_search);
final SearchView searchView = (SearchView) searchItem.getActionView();
searchView.setOnQueryTextListener(this);
return true;
}
@Override
public boolean onQueryTextChange(String query) {
// Here is where we are going to implement the filter logic
return false;
}
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
And now the SearchView
is ready to be used. We will implement the filter logic later on in onQueryTextChange()
once we are finished implementing the Adapter
.
Adapter
First and foremost this is the model class I am going to use for this example:
public class ExampleModel {
private final long mId;
private final String mText;
public ExampleModel(long id, String text) {
mId = id;
mText = text;
}
public long getId() {
return mId;
}
public String getText() {
return mText;
}
}
It's just your basic model which will display a text in the RecyclerView
. This is the layout I am going to use to display the text:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable
name="model"
type="com.github.wrdlbrnft.searchablerecyclerviewdemo.ui.models.ExampleModel"/>
</data>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/selectableItemBackground"
android:clickable="true">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="8dp"
android:text="@{model.text}"/>
</FrameLayout>
</layout>
As you can see I use Data Binding. If you have never worked with data binding before don't be discouraged! It's very simple and powerful, however I can't explain how it works in the scope of this answer.
This is the ViewHolder
for the ExampleModel
class:
public class ExampleViewHolder extends RecyclerView.ViewHolder {
private final ItemExampleBinding mBinding;
public ExampleViewHolder(ItemExampleBinding binding) {
super(binding.getRoot());
mBinding = binding;
}
public void bind(ExampleModel item) {
mBinding.setModel(item);
}
}
Again nothing special. It just uses data binding to bind the model class to this layout as we have defined in the layout xml above.
Now we can finally come to the really interesting part: Writing the Adapter. I am going to skip over the basic implementation of the Adapter
and am instead going to concentrate on the parts which are relevant for this answer.
But first there is one thing we have to talk about: The SortedList
class.
The SortedList
is a completely amazing tool which is part of the RecyclerView
library. It takes care of notifying the Adapter
about changes to the data set and does so it a very efficient way. The only thing it requires you to do is specify an order of the elements. You need to do that by implementing a compare()
method which compares two elements in the SortedList
just like a Comparator
. But instead of sorting a List
it is used to sort the items in the RecyclerView
!
The SortedList
interacts with the Adapter
through a Callback
class which you have to implement:
private final SortedList.Callback<ExampleModel> mCallback = new SortedList.Callback<ExampleModel>() {
@Override
public void onInserted(int position, int count) {
mAdapter.notifyItemRangeInserted(position, count);
}
@Override
public void onRemoved(int position, int count) {
mAdapter.notifyItemRangeRemoved(position, count);
}
@Override
public void onMoved(int fromPosition, int toPosition) {
mAdapter.notifyItemMoved(fromPosition, toPosition);
}
@Override
public void onChanged(int position, int count) {
mAdapter.notifyItemRangeChanged(position, count);
}
@Override
public int compare(ExampleModel a, ExampleModel b) {
return mComparator.compare(a, b);
}
@Override
public boolean areContentsTheSame(ExampleModel oldItem, ExampleModel newItem) {
return oldItem.equals(newItem);
}
@Override
public boolean areItemsTheSame(ExampleModel item1, ExampleModel item2) {
return item1.getId() == item2.getId();
}
}
In the methods at the top of the callback like onMoved
, onInserted
, etc. you have to call the equivalent notify method of your Adapter
. The three methods at the bottom compare
, areContentsTheSame
and areItemsTheSame
you have to implement according to what kind of objects you want to display and in what order these objects should appear on the screen.
Let's go through these methods one by one:
@Override
public int compare(ExampleModel a, ExampleModel b) {
return mComparator.compare(a, b);
}
This is the compare()
method I talked about earlier. In this example I am just passing the call to a Comparator
which compares the two models. If you want the items to appear in alphabetical order on the screen. This comparator might look like this:
private static final Comparator<ExampleModel> ALPHABETICAL_COMPARATOR = new Comparator<ExampleModel>() {
@Override
public int compare(ExampleModel a, ExampleModel b) {
return a.getText().compareTo(b.getText());
}
};
Now let's take a look at the next method:
@Override
public boolean areContentsTheSame(ExampleModel oldItem, ExampleModel newItem) {
return oldItem.equals(newItem);
}
The purpose of this method is to determine if the content of a model has changed. The SortedList
uses this to determine if a change event needs to be invoked - in other words if the RecyclerView
should crossfade the old and new version. If you model classes have a correct equals()
and hashCode()
implementation you can usually just implement it like above. If we add an equals()
and hashCode()
implementation to the ExampleModel
class it should look something like this:
public class ExampleModel implements SortedListAdapter.ViewModel {
private final long mId;
private final String mText;
public ExampleModel(long id, String text) {
mId = id;
mText = text;
}
public long getId() {
return mId;
}
public String getText() {
return mText;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ExampleModel model = (ExampleModel) o;
if (mId != model.mId) return false;
return mText != null ? mText.equals(model.mText) : model.mText == null;
}
@Override
public int hashCode() {
int result = (int) (mId ^ (mId >>> 32));
result = 31 * result + (mText != null ? mText.hashCode() : 0);
return result;
}
}
Quick side note: Most IDE's like Android Studio, IntelliJ and Eclipse have functionality to generate equals()
and hashCode()
implementations for you at the press of a button! So you don't have to implement them yourself. Look up on the internet how it works in your IDE!
Now let's take a look at the last method:
@Override
public boolean areItemsTheSame(ExampleModel item1, ExampleModel item2) {
return item1.getId() == item2.getId();
}
The SortedList
uses this method to check if two items refer to the same thing. In simplest terms (without explaining how the SortedList
works) this is used to determine if an object is already contained in the List
and if either an add, move or change animation needs to be played. If your models have an id you would usually compare just the id in this method. If they don't you need to figure out some other way to check this, but however you end up implementing this depends on your specific app. Usually it is the simplest option to give all models an id - that could for example be the primary key field if you are querying the data from a database.
With the SortedList.Callback
correctly implemented we can create an instance of the SortedList
:
final SortedList<ExampleModel> list = new SortedList<>(ExampleModel.class, mCallback);
As the first parameter in the constructor of the SortedList
you need to pass the class of your models. The other parameter is just the SortedList.Callback
we defined above.
Now let's get down to business: If we implement the Adapter
with a SortedList
it should look something like this:
public class ExampleAdapter extends RecyclerView.Adapter<ExampleViewHolder> {
private final SortedList<ExampleModel> mSortedList = new SortedList<>(ExampleModel.class, new SortedList.Callback<ExampleModel>() {
@Override
public int compare(ExampleModel a, ExampleModel b) {
return mComparator.compare(a, b);
}
@Override
public void onInserted(int position, int count) {
notifyItemRangeInserted(position, count);
}
@Override
public void onRemoved(int position, int count) {
notifyItemRangeRemoved(position, count);
}
@Override
public void onMoved(int fromPosition, int toPosition) {
notifyItemMoved(fromPosition, toPosition);
}
@Override
public void onChanged(int position, int count) {
notifyItemRangeChanged(position, count);
}
@Override
public boolean areContentsTheSame(ExampleModel oldItem, ExampleModel newItem) {
return oldItem.equals(newItem);
}
@Override
public boolean areItemsTheSame(ExampleModel item1, ExampleModel item2) {
return item1.getId() == item2.getId();
}
});
private final LayoutInflater mInflater;
private final Comparator<ExampleModel> mComparator;
public ExampleAdapter(Context context, Comparator<ExampleModel> comparator) {
mInflater = LayoutInflater.from(context);
mComparator = comparator;
}
@Override
public ExampleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
final ItemExampleBinding binding = ItemExampleBinding.inflate(inflater, parent, false);
return new ExampleViewHolder(binding);
}
@Override
public void onBindViewHolder(ExampleViewHolder holder, int position) {
final ExampleModel model = mSortedList.get(position);
holder.bind(model);
}
@Override
public int getItemCount() {
return mSortedList.size();
}
}
The Comparator
used to sort the item is passed in through the constructor so we can use the same Adapter
even if the items are supposed to be displayed in a different order.
Now we are almost done! But we first need a way to add or remove items to the Adapter
. For this purpose we can add methods to the Adapter
which allow us to add and remove items to the SortedList
:
public void add(ExampleModel model) {
mSortedList.add(model);
}
public void remove(ExampleModel model) {
mSortedList.remove(model);
}
public void add(List<ExampleModel> models) {
mSortedList.addAll(models);
}
public void remove(List<ExampleModel> models) {
mSortedList.beginBatchedUpdates();
for (ExampleModel model : models) {
mSortedList.remove(model);
}
mSortedList.endBatchedUpdates();
}
We don't need to call any notify methods here because the SortedList
already does this for through the SortedList.Callback
! Aside from that the implementation of these methods is pretty straight forward with one exception: the remove method which removes a List
of models. Since the SortedList
has only one remove method which can remove a single object we need to loop over the list and remove the models one by one. Calling beginBatchedUpdates()
at the beginning batches all the changes we are going to make to the SortedList
together and improves performance. When we call endBatchedUpdates()
the RecyclerView
is notified about all the changes at once.
Additionally what you have to understand is that if you add an object to the SortedList
and it is already in the SortedList
it won't be added again. Instead the SortedList
uses the areContentsTheSame()
method to figure out if the object has changed - and if it has the item in the RecyclerView
will be updated.
Anyway, what I usually prefer is one method which allows me to replace all items in the RecyclerView
at once. Remove everything which is not in the List
and add all items which are missing from the SortedList
:
public void replaceAll(List<ExampleModel> models) {
mSortedList.beginBatchedUpdates();
for (int i = mSortedList.size() - 1; i >= 0; i--) {
final ExampleModel model = mSortedList.get(i);
if (!models.contains(model)) {
mSortedList.remove(model);
}
}
mSortedList.addAll(models);
mSortedList.endBatchedUpdates();
}
This method again batches all updates together to increase performance. The first loop is in reverse since removing an item at the start would mess up the indexes of all items that come up after it and this can lead in some instances to problems like data inconsistencies. After that we just add the List
to the SortedList
using addAll()
to add all items which are not already in the SortedList
and - just like I described above - update all items that are already in the SortedList
but have changed.
And with that the Adapter
is complete. The whole thing should look something like this:
public class ExampleAdapter extends RecyclerView.Adapter<ExampleViewHolder> {
private final SortedList<ExampleModel> mSortedList = new SortedList<>(ExampleModel.class, new SortedList.Callback<ExampleModel>() {
@Override
public int compare(ExampleModel a, ExampleModel b) {
return mComparator.compare(a, b);
}
@Override
public void onInserted(int position, int count) {
notifyItemRangeInserted(position, count);
}
@Override
public void onRemoved(int position, int count) {
notifyItemRangeRemoved(position, count);
}
@Override
public void onMoved(int fromPosition, int toPosition) {
notifyItemMoved(fromPosition, toPosition);
}
@Override
public void onChanged(int position, int count) {
notifyItemRangeChanged(position, count);
}
@Override
public boolean areContentsTheSame(ExampleModel oldItem, ExampleModel newItem) {
return oldItem.equals(newItem);
}
@Override
public boolean areItemsTheSame(ExampleModel item1, ExampleModel item2) {
return item1 == item2;
}
});
private final Comparator<ExampleModel> mComparator;
private final LayoutInflater mInflater;
public ExampleAdapter(Context context, Comparator<ExampleModel> comparator) {
mInflater = LayoutInflater.from(context);
mComparator = comparator;
}
@Override
public ExampleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
final ItemExampleBinding binding = ItemExampleBinding.inflate(mInflater, parent, false);
return new ExampleViewHolder(binding);
}
@Override
public void onBindViewHolder(ExampleViewHolder holder, int position) {
final ExampleModel model = mSortedList.get(position);
holder.bind(model);
}
public void add(ExampleModel model) {
mSortedList.add(model);
}
public void remove(ExampleModel model) {
mSortedList.remove(model);
}
public void add(List<ExampleModel> models) {
mSortedList.addAll(models);
}
public void remove(List<ExampleModel> models) {
mSortedList.beginBatchedUpdates();
for (ExampleModel model : models) {
mSortedList.remove(model);
}
mSortedList.endBatchedUpdates();
}
public void replaceAll(List<ExampleModel> models) {
mSortedList.beginBatchedUpdates();
for (int i = mSortedList.size() - 1; i >= 0; i--) {
final ExampleModel model = mSortedList.get(i);
if (!models.contains(model)) {
mSortedList.remove(model);
}
}
mSortedList.addAll(models);
mSortedList.endBatchedUpdates();
}
@Override
public int getItemCount() {
return mSortedList.size();
}
}
The only thing missing now is to implement the filtering!
To implement the filter logic we first have to define a List
of all possible models. For this example I create a List
of ExampleModel
instances from an array of movies:
private static final String[] MOVIES = new String[]{
...
};
private static final Comparator<ExampleModel> ALPHABETICAL_COMPARATOR = new Comparator<ExampleModel>() {
@Override
public int compare(ExampleModel a, ExampleModel b) {
return a.getText().compareTo(b.getText());
}
};
private ExampleAdapter mAdapter;
private List<ExampleModel> mModels;
private RecyclerView mRecyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mBinding = DataBindingUtil.setContentView(this, R.layout.activity_main);
mAdapter = new ExampleAdapter(this, ALPHABETICAL_COMPARATOR);
mBinding.recyclerView.setLayoutManager(new LinearLayoutManager(this));
mBinding.recyclerView.setAdapter(mAdapter);
mModels = new ArrayList<>();
for (String movie : MOVIES) {
mModels.add(new ExampleModel(movie));
}
mAdapter.add(mModels);
}
Nothing special going on here, we just instantiate the Adapter
and set it to the RecyclerView
. After that we create a List
of models from the movie names in the MOVIES
array. Then we add all the models to the SortedList
.
Now we can go back to onQueryTextChange()
which we defined earlier and start implementing the filter logic:
@Override
public boolean onQueryTextChange(String query) {
final List<ExampleModel> filteredModelList = filter(mModels, query);
mAdapter.replaceAll(filteredModelList);
mBinding.recyclerView.scrollToPosition(0);
return true;
}
This is again pretty straight forward. We call the method filter()
and pass in the List
of ExampleModel
s as well as the query string. We then call replaceAll()
on the Adapter
and pass in the filtered List
returned by filter()
. We also have to call scrollToPosition(0)
on the RecyclerView
to ensure that the user can always see all items when searching for something. Otherwise the RecyclerView
might stay in a scrolled down position while filtering and subsequently hide a few items. Scrolling to the top ensures a better user experience while searching.
The only thing left to do now is to implement filter()
itself:
private static List<ExampleModel> filter(List<ExampleModel> models, String query) {
final String lowerCaseQuery = query.toLowerCase();
final List<ExampleModel> filteredModelList = new ArrayList<>();
for (ExampleModel model : models) {
final String text = model.getText().toLowerCase();
if (text.contains(lowerCaseQuery)) {
filteredModelList.add(model);
}
}
return filteredModelList;
}
The first thing we do here is call toLowerCase()
on the query string. We don't want our search function to be case sensitive and by calling toLowerCase()
on all strings we compare we can ensure that we return the same results regardless of case. It then just iterates through all the models in the List
we passed into it and checks if the query string is contained in the text of the model. If it is then the model is added to the filtered List
.
And that's it! The above code will run on API level 7 and above and starting with API level 11 you get item animations for free!
I realize that this is a very detailed description which probably makes this whole thing seem more complicated than it really is, but there is a way we can generalize this whole problem and make implementing an Adapter
based on a SortedList
much simpler.
In this section I am not going to go into much detail - partly because I am running up against the character limit for answers on Stack Overflow but also because most of it already explained above - but to summarize the changes: We can implemented a base Adapter
class which already takes care of dealing with the SortedList
as well as binding models to ViewHolder
instances and provides a convenient way to implement an Adapter
based on a SortedList
. For that we have to do two things:
ViewModel
interface which all model classes have to implementViewHolder
subclass which defines a bind()
method the Adapter
can use to bind models automatically.This allows us to just focus on the content which is supposed to be displayed in the RecyclerView
by just implementing the models and there corresponding ViewHolder
implementations. Using this base class we don't have to worry about the intricate details of the Adapter
and its SortedList
.
Because of the character limit for answers on StackOverflow I can't go through each step of implementing this base class or even add the full source code here, but you can find the full source code of this base class - I called it SortedListAdapter
- in this GitHub Gist.
To make your life simple I have published a library on jCenter which contains the SortedListAdapter
! If you want to use it then all you need to do is add this dependency to your app's build.gradle file:
compile 'com.github.wrdlbrnft:sorted-list-adapter:0.2.0.1'
You can find more information about this library on the library homepage.
To use the SortedListAdapter
we have to make two changes:
Change the ViewHolder
so that it extends SortedListAdapter.ViewHolder
. The type parameter should be the model which should be bound to this ViewHolder
- in this case ExampleModel
. You have to bind data to your models in performBind()
instead of bind()
.
public class ExampleViewHolder extends SortedListAdapter.ViewHolder<ExampleModel> {
private final ItemExampleBinding mBinding;
public ExampleViewHolder(ItemExampleBinding binding) {
super(binding.getRoot());
mBinding = binding;
}
@Override
protected void performBind(ExampleModel item) {
mBinding.setModel(item);
}
}
Make sure that all your models implement the ViewModel
interface:
public class ExampleModel implements SortedListAdapter.ViewModel {
...
}
After that we just have to update the ExampleAdapter
to extend SortedListAdapter
and remove everything we don't need anymore. The type parameter should be the type of model you are working with - in this case ExampleModel
. But if you are working with different types of models then set the type parameter to ViewModel
.
public class ExampleAdapter extends SortedListAdapter<ExampleModel> {
public ExampleAdapter(Context context, Comparator<ExampleModel> comparator) {
super(context, ExampleModel.class, comparator);
}
@Override
protected ViewHolder<? extends ExampleModel> onCreateViewHolder(LayoutInflater inflater, ViewGroup parent, int viewType) {
final ItemExampleBinding binding = ItemExampleBinding.inflate(inflater, parent, false);
return new ExampleViewHolder(binding);
}
@Override
protected boolean areItemsTheSame(ExampleModel item1, ExampleModel item2) {
return item1.getId() == item2.getId();
}
@Override
protected boolean areItemContentsTheSame(ExampleModel oldItem, ExampleModel newItem) {
return oldItem.equals(newItem);
}
}
After that we are done! However one last thing to mention: The SortedListAdapter
does not have the same add()
, remove()
or replaceAll()
methods our original ExampleAdapter
had. It uses a separate Editor
object to modify the items in the list which can be accessed through the edit()
method. So if you want to remove or add items you have to call edit()
then add and remove the items on this Editor
instance and once you are done, call commit()
on it to apply the changes to the SortedList
:
mAdapter.edit()
.remove(modelToRemove)
.add(listOfModelsToAdd)
.commit();
All changes you make this way are batched together to increase performance. The replaceAll()
method we implemented in the chapters above is also present on this Editor
object:
mAdapter.edit()
.replaceAll(mModels)
.commit();
If you forget to call commit()
then none of your changes will be applied!
This question has been asked long ago but none of the answers above helped me out, though Milad Moosavi`s answer was very close. To open a new activity from a certain position on the recycler view, the following code may help:
@Override
public void onBindViewHolder(@NonNull TripViewHolder holder, int position) {
Trip currentTrip = trips.get(position);
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(v.getContext(), EditTrip.class);
v.getContext().startActivity(intent);
}
});
holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Intent intent = new Intent(v.getContext(), ReadTripActivity.class);
v.getContext().startActivity(intent);
return false;
}
});
}
if you are adding multiple items to the list use this:
mAdapter.notifyItemRangeInserted(startPosition, itemcount);
This notify any registered observers that the currently reflected itemCount items starting at positionStart have been newly inserted. The item previously located at positionStart and beyond can now be found starting at position positinStart+itemCount
existing item in the dataset still considered up to date.
there is no selector in RecyclerView like ListView and GridView but you try below thing it worked for me
create a selector drawable as below
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape>
<solid android:color="@color/blue" />
</shape>
</item>
<item android:state_pressed="false">
<shape>
<solid android:color="@android:color/transparent" />
</shape>
</item>
</selector>
then set this drawable as background of your RecyclerView row layout as
android:background="@drawable/selector"
Set your onClickListener
s on onBindViewHolder()
and you can access the position from there. If you set them in your ViewHolder
you won't know what position was clicked unless you also pass the position into the ViewHolder
EDIT
As pskink
pointed out ViewHolder
has a getPosition()
so the way you were originally doing it was correct.
When the view is clicked you can use getPosition()
in your ViewHolder
and it returns the position
Update
getPosition()
is now deprecated and replaced with getAdapterPosition()
Update 2020
getAdapterPosition()
is now deprecated and replaced with getAbsoluteAdapterPosition()
or getBindingAdapterPosition()
Kotlin code:
override fun onBindViewHolder(holder: MyHolder, position: Int) {
// - get element from your dataset at this position
val item = myDataset.get(holder.absoluteAdapterPosition)
}
I came to this situation when I installed node js from the latest stable release.
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
It seems this version already comes with a prepackaged NPM. So when I tried to install NPM again, I got this error. If anyone is installing Nodejs in this manner then, it's not needed to install NPM separately.
The following packages have unmet dependencies:
npm : Depends: nodejs but it is not going to be installed
Depends: node-abbrev (>= 1.0.4) but it is not going to be installed
Depends: node-ansi (>= 0.3.0-2) but it is not going to be installed
Depends: node-ansi-color-table but it is not going to be installed
Depends: node-archy but it is not going to be installed
Depends: node-block-stream but it is not going to be installed
Depends: node-fstream (>= 0.1.22) but it is not going to be installed
Depends: node-fstream-ignore but it is not going to be installed
Depends: node-github-url-from-git but it is not going to be installed
Depends: node-glob (>= 3.1.21) but it is not going to be installed
Depends: node-graceful-fs (>= 2.0.0) but it is not going to be installed
Depends: node-inherits but it is not going to be installed
Depends: node-ini (>= 1.1.0) but it is not going to be installed
Depends: node-lockfile but it is not going to be installed
Depends: node-lru-cache (>= 2.3.0) but it is not going to be installed
Depends: node-minimatch (>= 0.2.11) but it is not going to be installed
Depends: node-mkdirp (>= 0.3.3) but it is not going to be installed
Depends: node-gyp (>= 0.10.9) but it is not going to be installed
Depends: node-nopt (>= 3.0.1) but it is not going to be installed
Depends: node-npmlog but it is not going to be installed
Depends: node-once but it is not going to be installed
Depends: node-osenv but it is not going to be installed
Depends: node-read but it is not going to be installed
Depends: node-read-package-json (>= 1.1.0) but it is not going to be installed
Depends: node-request (>= 2.25.0) but it is not going to be installed
Depends: node-retry but it is not going to be installed
Depends: node-rimraf (>= 2.2.2) but it is not going to be installed
Depends: node-semver (>= 2.1.0) but it is not going to be installed
Depends: node-sha but it is not going to be installed
Depends: node-slide but it is not going to be installed
Depends: node-tar (>= 0.1.18) but it is not going to be installed
Depends: node-underscore but it is not going to be installed
Depends: node-which but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
There is one more solution that covers all the use cases above: CompoundAdapter: https://github.com/negusoft/CompoundAdapter-android
You can create a AdapterGroup that holds your Adapter as it is, along with an adapter with a single item to represent the header. The code is easy and readable:
AdapterGroup adapterGroup = new AdapterGroup();
adapterGroup.addAdapter(SingleAdapter.create(R.layout.header));
adapterGroup.addAdapter(new CommentAdapter(...));
recyclerView.setAdapter(adapterGroup);
AdapterGroup allows nesting too, so for a adapter with sections, you may create a AdapterGroup per section. Then put all the sections in a root AdapterGroup.
There is a problem with setting the tint color on the view after presenting; even if you do it in the completion block of presentViewController:animated:completion:, it causes a flicker effect on the color of the button titles. This is sloppy, unprofessional and completely unacceptable.
Other solutions presented depend on the view hierarchy remaining static, something that Apple is loathe to do. Expect those solutions to fail in future releases of iOS.
The one sure-fire way to solve this problem and to do it everywhere, is via adding a category to UIAlertController and swizzling the viewWillAppear.
The header:
//
// UIAlertController+iOS9TintFix.h
//
// Created by Flor, Daniel J on 11/2/15.
//
#import <UIKit/UIKit.h>
@interface UIAlertController (iOS9TintFix)
+ (void)tintFix;
- (void)swizzledViewWillAppear:(BOOL)animated;
@end
The implementation:
//
// UIAlertController+iOS9TintFix.m
//
// Created by Flor, Daniel J on 11/2/15.
//
#import "UIAlertController+iOS9TintFix.h"
#import <objc/runtime.h>
@implementation UIAlertController (iOS9TintFix)
+ (void)tintFix {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
Method method = class_getInstanceMethod(self, @selector(viewWillAppear:));
Method swizzle = class_getInstanceMethod(self, @selector(swizzledViewWillAppear:));
method_exchangeImplementations(method, swizzle);});
}
- (void)swizzledViewWillAppear:(BOOL)animated {
[self swizzledViewWillAppear:animated];
for (UIView *view in self.view.subviews) {
if (view.tintColor == self.view.tintColor) {
//only do those that match the main view, so we don't strip the red-tint from destructive buttons.
self.view.tintColor = [UIColor colorWithRed:0.0 green:122.0/255.0 blue:1.0 alpha:1.0];
[view setNeedsDisplay];
}
}
}
@end
Add a .pch (precompiled header) to your project and include the category:
#import "UIAlertController+iOS9TintFix.h"
Make sure you register your pch in the project properly, and it will include the category methods in every class that uses the UIAlertController.
Then, in your app delegates didFinishLaunchingWithOptions method, import your category and call
[UIAlertController tintFix];
and it will automatically propagate to every single instance of UIAlertController within your app, whether launched by your code or anyone else's.
This solution works for both iOS 8.X and iOS 9.X and lacks the flicker of the tint change post-presentation approach. It is also completely agnostic with respect to the view hierarchy of the sub-views of the UIAlertController.
Happy hacking!
Handling the rows / sections logic similar to iOS's UITableView is not as simple in Android as it is in iOS, however, when you use RecyclerView - the flexibility of what you can do is far greater.
In the end, it's all about how you figure out what type of view you're displaying in the Adapter. Once you got that figured out, it should be easy sailing (not really, but at least you'll have that sorted).
The Adapter exposes two methods which you should override:
getItemViewType(int position)
This method's default implementation will always return 0, indicating that there is only 1 type of view. In your case, it is not so, and so you will need find a way to assert which row corresponds to which view type. Unlike iOS, which manages this for you with rows and sections, here you will have only one index to rely on, and you'll need to use your developer skills to know when a position correlates to a section header, and when it correlates to a normal row.
createViewHolder(ViewGroup parent, int viewType)
You need to override this method anyway, but usually people just ignore the viewType parameter. According to the view type, you'll need to inflate the correct layout resource and create your view holder accordingly. The RecyclerView will handle recycling different view types in a way which avoids clashing of different view types.
If you're planning on using a default LayoutManager, such as LinearLayoutManager
, you should be good to go. If you're planning on making your own LayoutManager implementation, you'll need to work a bit harder. The only API you really have to work with is findViewByPosition(int position)
which gives a given view at a certain position. Since you'll probably want to lay it out differently depending on what type this view is, you have a few options:
Usually when using the ViewHolder pattern, you set the view's tag with the view holder. You could use this during runtime in the layout manager to find out what type the view is by adding a field in the view holder which expresses this.
Since you'll need a function which determines which position correlates to which view type, you might as well make this method globally accessible somehow (maybe a singleton class which manages the data?), and then you can simply query the same method according to the position.
Here's a code sample:
// in this sample, I use an object array to simulate the data of the list.
// I assume that if the object is a String, it means I should display a header with a basic title.
// If not, I assume it's a custom model object I created which I will use to bind my normal rows.
private Object[] myData;
public static final int ITEM_TYPE_NORMAL = 0;
public static final int ITEM_TYPE_HEADER = 1;
public class MyAdapter extends Adapter<ViewHolder> {
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == ITEM_TYPE_NORMAL) {
View normalView = LayoutInflater.from(getContext()).inflate(R.layout.my_normal_row, null);
return new MyNormalViewHolder(normalView); // view holder for normal items
} else if (viewType == ITEM_TYPE_HEADER) {
View headerRow = LayoutInflater.from(getContext()).inflate(R.layout.my_header_row, null);
return new MyHeaderViewHolder(headerRow); // view holder for header items
}
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
final int itemType = getItemViewType(position);
if (itemType == ITEM_TYPE_NORMAL) {
((MyNormalViewHolder)holder).bindData((MyModel)myData[position]);
} else if (itemType == ITEM_TYPE_HEADER) {
((MyHeaderViewHolder)holder).setHeaderText((String)myData[position]);
}
}
@Override
public int getItemViewType(int position) {
if (myData[position] instanceof String) {
return ITEM_TYPE_HEADER;
} else {
return ITEM_TYPE_NORMAL;
}
}
@Override
public int getItemCount() {
return myData.length;
}
}
Here's a sample of how these view holders should look like:
public MyHeaderViewHolder extends ViewHolder {
private TextView headerLabel;
public MyHeaderViewHolder(View view) {
super(view);
headerLabel = (TextView)view.findViewById(R.id.headerLabel);
}
public void setHeaderText(String text) {
headerLabel.setText(text);
}
}
public MyNormalViewHolder extends ViewHolder {
private TextView titleLabel;
private TextView descriptionLabel;
public MyNormalViewHolder(View view) {
super(view);
titleLabel = (TextView)view.findViewById(R.id.titleLabel);
descriptionLabel = (TextView)view.findViewById(R.id.descriptionLabel);
}
public void bindData(MyModel model) {
titleLabel.setText(model.getTitle());
descriptionLabel.setText(model.getDescription());
}
}
Of course, this sample assumes you've constructed your data source (myData) in a way that makes it easy to implement an adapter in this way. As an example, I'll show you how I'd construct a data source which shows a list of names, and a header for every time the 1st letter of the name changes (assume the list is alphabetized) - similar to how a contacts list would look like:
// Assume names & descriptions are non-null and have the same length.
// Assume names are alphabetized
private void processDataSource(String[] names, String[] descriptions) {
String nextFirstLetter = "";
String currentFirstLetter;
List<Object> data = new ArrayList<Object>();
for (int i = 0; i < names.length; i++) {
currentFirstLetter = names[i].substring(0, 1); // get the 1st letter of the name
// if the first letter of this name is different from the last one, add a header row
if (!currentFirstLetter.equals(nextFirstLetter)) {
nextFirstLetter = currentFirstLetter;
data.add(nextFirstLetter);
}
data.add(new MyModel(names[i], descriptions[i]));
}
myData = data.toArray();
}
This example comes to solve a fairly specific issue, but I hope this gives you a good overview on how to handle different row types in a recycler, and allows you make the necessary adaptations in your own code to fit your needs.
The emulator tries to find a numeric keypad on the mac, but this is not found (MacBook Pro, MacBook Air and "normal/small" keyboard do not have it). You can deselect the option Connect Hardware Keyboard or just ignore the error message, it will have no negative effect on application.
I realize that this is an old thread, but for Future-Me, and posterity, I figured I should add my two-cents around the "running npm as sudo" discussion. Disclaimer: I do not use Windows. These steps have only been proven on non-windows machines, both virtual and physical.
You can avoid the need to use sudo by changing the permission to npm's default directory.
sudo
npm config get prefix
/usr/local
/usr
or /Users/YOURUSERNAME/node_modules
or /Something/Else/FishyLooking
npm config set prefix /usr/local
sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
Now you should be able to run npm <whatever>
without sudo
. Note: You may need to restart your terminal in order for these changes to take effect.
Swift 2.0
// Checking if app is running iOS 8
if application.respondsToSelector("isRegisteredForRemoteNotifications") {
print("registerApplicationForPushNotifications - iOS 8")
application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil));
application.registerForRemoteNotifications()
} else {
// Register for Push Notifications before iOS 8
print("registerApplicationForPushNotifications - <iOS 8")
application.registerForRemoteNotificationTypes([UIRemoteNotificationType.Alert, UIRemoteNotificationType.Badge, UIRemoteNotificationType.Sound])
}
Kotlin version:
toolbar.menu.findItem(R.id.notification).icon =
ContextCompat.getDrawable(requireContext(), R.drawable.ic_notification)
toolbar.menu.findItem(R.id.notification).isVisible = true
Add android:exported="true" in your 'com.example.lib.MainActivity' activity tag.
From the android:exported documentation,
android:exported Whether or not the activity can be launched by components of other applications — "true" if it can be, and "false" if not. If "false", the activity can be launched only by components of the same application or applications with the same user ID.
From your logcat output, clearly a mismatch in uid is causing the issue. So adding the android:exported="true" should do the trick.
Add following to your Styles.xml
<style name="Custom_Theme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:itemBackground">@color/white</item>
<item name="android:textColor">@color/colorPrimaryDark</item>
</style>
Change theme in activity_main.xml
only.
android:theme="@style/Custom_Theme"
For this case, I do something like this:
var obj = {};_x000D_
_x000D_
if(Object.keys(obj).length == 0){_x000D_
console.log("The obj is null")_x000D_
}
_x000D_
This is another way to specify the range of the bit-vector.
x +: N, The start position of the vector is given by x and you count up from x by N.
There is also
x -: N, in this case the start position is x and you count down from x by N.
N is a constant and x is an expression that can contain iterators.
It has a couple of benefits -
It makes the code more readable.
You can specify an iterator when referencing bit-slices without getting a "cannot have a non-constant value" error.
The problem is with ssl
you should use sudo. Follow below method to resolve the issue.
if you are getting this issue enter sudo npm config set strict-ssl false password: Enter current username password
then now run all ur command wit sudo sudo npm npm install -g underscore password: Enter current username password
Even after if your getting error. Your proxy will be problem. few corporate proxy will be blocked, so you should use wifi or open network to fix this issue.
If you want to use valueChangeListener
, you need to submit the form every time a new option is chosen. Something like this:
<p:selectOneMenu value="#{mymb.employee}" onchange="submit()"
valueChangeListener="#{mymb.handleChange}" >
<f:selectItems value="#{mymb.employeesList}" var="emp"
itemLabel="#{emp.employeeName}" itemValue="#{emp.employeeID}" />
</p:selectOneMenu>
public void handleChange(ValueChangeEvent event){
System.out.println("New value: " + event.getNewValue());
}
Or else, if you want to use <p:ajax>
, it should look like this:
<p:selectOneMenu value="#{mymb.employee}" >
<p:ajax listener="#{mymb.handleChange}" />
<f:selectItems value="#{mymb.employeesList}" var="emp"
itemLabel="#{emp.employeeName}" itemValue="#{emp.employeeID}" />
</p:selectOneMenu>
private String employeeID;
public void handleChange(){
System.out.println("New value: " + employee);
}
One thing to note is that in your example code, I saw that the value
attribute of your <p:selectOneMenu>
is #{mymb.employeesList}
which is the same as the value
of <f:selectItems>
. The value
of your <p:selectOneMenu>
should be similar to my examples above which point to a single employee, not a list of employees.
adpter.notifyDataSetInvalidated();
Try this in onPause()
method of Activity class.
In my case I have IBOutlet UILabel *description in .h, it was with yellow /!\ - "will not synthesized", as I remember. Dunno what is it and why only this label.
But I got this crash and error like above. Deleted *description and recreate *description2. No crash in result.
There is one more way to run grunt on windows, without adding anything globally. This is a case when you don't have to do anything with %PATH%
if you have grunt and grunt-cli installed (without -g switch). Either by:
npm install grunt-cli
npm install [email protected]
Or by having that in your packages.json file like:
"devDependencies": {
"grunt-cli": "^1.2.0",
"grunt": "^0.4.5",
You can call grunt from your local installation by:
node node_modules\grunt-cli\bin\grunt --version
This is a solution for those who for some reasons don't want to or can't play with PATH, or have something else messing it all the time, for instance on a build agent.
Edit: Added versions as the grunt-cli works with grunt > 0.3
They have wrapped most stuff need to solve your problem, one of the tests looks like this:
String filename = CSSURLEmbedderTest.class.getResource("folder.png").getPath().replace("%20", " ");
String code = "background: url(folder.png);";
StringWriter writer = new StringWriter();
embedder = new CSSURLEmbedder(new StringReader(code), true);
embedder.embedImages(writer, filename.substring(0, filename.lastIndexOf("/")+1));
String result = writer.toString();
assertEquals("background: url(" + folderDataURI + ");", result);
if (position ==0) {
if (rYes.isChecked()) {
Toast.makeText(SportActivity.this, "yes ur answer is right", Toast.LENGTH_LONG).show();
} else if (rNo.isChecked()) {
Toast.makeText(SportActivity.this, "no.ur answer is wrong", Toast.LENGTH_LONG).show();
}
}
This code is supposed to select both check boxes.
Is there a problem with it?
The simplest way is to get the width and height of an ImageView in onWindowFocusChanged method of the activity
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
height = mImageView.getHeight();
width = mImageView.getWidth();
}
The number of itemId
s in your list will be the same as the number of elements in your list:
int itemCount = list.size();
However, if you're looking to count the number of unique itemIds (per @pst) then you should use a set to keep track of them.
Set<String> itemIds = new HashSet<String>();
//...
itemId = p.getItemId();
itemIds.add(itemId);
//... later ...
int uniqueItemIdCount = itemIds.size();
Using the refered recommended way... if there is no definition in the header files, you can always get the versión printing it on console with a device of the desired IOS versión.
- (BOOL) isIOS8OrAbove{
float version802 = 1140.109985;
float version8= 1139.100000; // there is no def like NSFoundationVersionNumber_iOS_7_1 for ios 8 yet?
NSLog(@"la version actual es [%f]", NSFoundationVersionNumber);
if (NSFoundationVersionNumber >= version8){
return true;
}
return false;
}
I figure out one way to make my reports converting rows to columns almost dynamic using simple querys. You can see and test it online here.
The number of columns of query is fixed but the values are dynamic and based on values of rows. You can build it So, I use one query to build the table header and another one to see the values:
SELECT distinct concat('<th>',itemname,'</th>') as column_name_table_header FROM history order by 1;
SELECT
hostid
,(case when itemname = (select distinct itemname from history a order by 1 limit 0,1) then itemvalue else '' end) as col1
,(case when itemname = (select distinct itemname from history a order by 1 limit 1,1) then itemvalue else '' end) as col2
,(case when itemname = (select distinct itemname from history a order by 1 limit 2,1) then itemvalue else '' end) as col3
,(case when itemname = (select distinct itemname from history a order by 1 limit 3,1) then itemvalue else '' end) as col4
FROM history order by 1;
You can summarize it, too:
SELECT
hostid
,sum(case when itemname = (select distinct itemname from history a order by 1 limit 0,1) then itemvalue end) as A
,sum(case when itemname = (select distinct itemname from history a order by 1 limit 1,1) then itemvalue end) as B
,sum(case when itemname = (select distinct itemname from history a order by 1 limit 2,1) then itemvalue end) as C
FROM history group by hostid order by 1;
+--------+------+------+------+
| hostid | A | B | C |
+--------+------+------+------+
| 1 | 10 | 3 | NULL |
| 2 | 9 | NULL | 40 |
+--------+------+------+------+
Results of RexTester:
http://rextester.com/ZSWKS28923
For one real example of use, this report bellow show in columns the hours of departures arrivals of boat/bus with a visual schedule. You will see one additional column not used at the last col without confuse the visualization: ** ticketing system to of sell ticket online and presential
Just in case someone else runs into this problem I solved it by the following
brew update && brew upgrade # installs libpng 1.6
This caused an error with other packages requiring 1.5 which they were built with, so I linked it:
cd /usr/local/lib/
ln -s ../Cellar/libpng/1.5.18/lib/libpng15.15.dylib
Now they are both living in harmony and side by side for the different packages. It would be better to rebuild the packages that depend on 1.5, but this works as a quick bandage fix.
What worked for me was to drag the folder into Visual Studio, then right click the folder and select "Open Folder in File Explorer". Then select all and drag them into the folder in Visual Studio.
Do your groupby, and use reset_index() to make it back into a DataFrame. Then sort.
grouped = df.groupby('mygroups').sum().reset_index()
grouped.sort_values('mygroups', ascending=False)
As for the workaround (without using non-portable -P
), you can temporary replace a new-line character with the different one and change it back, e.g.:
grep -o "_foo_" <(paste -sd_ file) | tr -d '_'
Basically it's looking for exact match _foo_
where _
means \n
(so __
= \n\n
). You don't have to translate it back by tr '_' '\n'
, as each pattern would be printed in the new line anyway, so removing _
is enough.
Encapsulate your writer to provide char replacement, like this:
public class WindowsFileWriter extends Writer {
private Writer writer;
public WindowsFileWriter(File file) throws IOException {
try {
writer = new OutputStreamWriter(new FileOutputStream(file), "ISO-8859-15");
} catch (UnsupportedEncodingException e) {
writer = new FileWriter(logfile);
}
}
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
writer.write(new String(cbuf, off, len).replace("\n", "\r\n"));
}
@Override
public void flush() throws IOException {
writer.flush();
}
@Override
public void close() throws IOException {
writer.close();
}
}
This solution actually validates the numbers and the format. For example: 123-456-7890 is a valid format but is NOT a valid US number and this answer bears that out where others here do not.
If you do not want the extension capability remove the following including the parenthesis: (?:\s*(?:#|x.?|ext.?|extension)\s*(\d+)\s*)? :)
edit (addendum) I needed this in a client side only application so I converted it. Here it is for the javascript folks:
var myPhoneRegex = /(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]??)\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)([2-9]1[02-9]??|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})\s*(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+)\s*)?$/i;
if (myPhoneRegex.test(phoneVar)) {
// Successful match
} else {
// Match attempt failed
}
hth. end edit
This allows extensions or not and works with .NET
(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]??)\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)([2-9]1[02-9]??|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$
To validate with or without trailing spaces. Perhaps when using .NET validators and trimming server side use this slightly different regex:
(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]??)\s*)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)([2-9]1[02-9]??|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})\s*(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+)\s*)?$
All valid:
1 800 5551212
800 555 1212
8005551212
18005551212
+1800 555 1212 extension65432
800 5551212 ext3333
Invalid #s
234-911-5678
314-159-2653
123-234-5678
EDIT: Based on Felipe's comment I have updated this for international.
Based on what I could find out from here and here regarding valid global numbers
This is tested as a first line of defense of course. An overarching element of the international number is that it is no longer than 15 characters. I did not write a replace for all the non digits and sum the result. It should be done for completeness. Also, you may notice that I have not combined the North America regex with this one. The reason is that this international regex will match North American numbers, however, it will also accept known invalid #
such as +1 234-911-5678
. For more accurate results you should separate them as well.
Pauses and other dialing instruments are not mentioned and therefore invalid per E.164
\(?\+[0-9]{1,3}\)? ?-?[0-9]{1,3} ?-?[0-9]{3,5} ?-?[0-9]{4}( ?-?[0-9]{3})?
With 1-10 letter word for extension and 1-6 digit extension:
\(?\+[0-9]{1,3}\)? ?-?[0-9]{1,3} ?-?[0-9]{3,5} ?-?[0-9]{4}( ?-?[0-9]{3})? ?(\w{1,10}\s?\d{1,6})?
Valid International: Country name for ref its not a match.
+55 11 99999-5555 Brazil
+593 7 282-3889 Ecuador
(+44) 0848 9123 456 UK
+1 284 852 5500 BVI
+1 345 9490088 Grand Cayman
+32 2 702-9200 Belgium
+65 6511 9266 Asia Pacific
+86 21 2230 1000 Shanghai
+9124 4723300 India
+821012345678 South Korea
And for your extension pleasure
+55 11 99999-5555 ramal 123 Brazil
+55 11 99999-5555 foo786544 Brazil
Enjoy
I personally prefer using scrapy and selenium and dockerizing both in separate containers. This way you can install both with minimal hassle and crawl modern websites that almost all contain javascript in one form or another. Here's an example:
Use the scrapy startproject
to create your scraper and write your spider, the skeleton can be as simple as this:
import scrapy
class MySpider(scrapy.Spider):
name = 'my_spider'
start_urls = ['https://somewhere.com']
def start_requests(self):
yield scrapy.Request(url=self.start_urls[0])
def parse(self, response):
# do stuff with results, scrape items etc.
# now were just checking everything worked
print(response.body)
The real magic happens in the middlewares.py. Overwrite two methods in the downloader middleware, __init__
and process_request
, in the following way:
# import some additional modules that we need
import os
from copy import deepcopy
from time import sleep
from scrapy import signals
from scrapy.http import HtmlResponse
from selenium import webdriver
class SampleProjectDownloaderMiddleware(object):
def __init__(self):
SELENIUM_LOCATION = os.environ.get('SELENIUM_LOCATION', 'NOT_HERE')
SELENIUM_URL = f'http://{SELENIUM_LOCATION}:4444/wd/hub'
chrome_options = webdriver.ChromeOptions()
# chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
self.driver = webdriver.Remote(command_executor=SELENIUM_URL,
desired_capabilities=chrome_options.to_capabilities())
def process_request(self, request, spider):
self.driver.get(request.url)
# sleep a bit so the page has time to load
# or monitor items on page to continue as soon as page ready
sleep(4)
# if you need to manipulate the page content like clicking and scrolling, you do it here
# self.driver.find_element_by_css_selector('.my-class').click()
# you only need the now properly and completely rendered html from your page to get results
body = deepcopy(self.driver.page_source)
# copy the current url in case of redirects
url = deepcopy(self.driver.current_url)
return HtmlResponse(url, body=body, encoding='utf-8', request=request)
Dont forget to enable this middlware by uncommenting the next lines in the settings.py file:
DOWNLOADER_MIDDLEWARES = {
'sample_project.middlewares.SampleProjectDownloaderMiddleware': 543,}
Next for dockerization. Create your Dockerfile
from a lightweight image (I'm using python Alpine here), copy your project directory to it, install requirements:
# Use an official Python runtime as a parent image
FROM python:3.6-alpine
# install some packages necessary to scrapy and then curl because it's handy for debugging
RUN apk --update add linux-headers libffi-dev openssl-dev build-base libxslt-dev libxml2-dev curl python-dev
WORKDIR /my_scraper
ADD requirements.txt /my_scraper/
RUN pip install -r requirements.txt
ADD . /scrapers
And finally bring it all together in docker-compose.yaml
:
version: '2'
services:
selenium:
image: selenium/standalone-chrome
ports:
- "4444:4444"
shm_size: 1G
my_scraper:
build: .
depends_on:
- "selenium"
environment:
- SELENIUM_LOCATION=samplecrawler_selenium_1
volumes:
- .:/my_scraper
# use this command to keep the container running
command: tail -f /dev/null
Run docker-compose up -d
. If you're doing this the first time it will take a while for it to fetch the latest selenium/standalone-chrome and the build your scraper image as well.
Once it's done, you can check that your containers are running with docker ps
and also check that the name of the selenium container matches that of the environment variable that we passed to our scraper container (here, it was SELENIUM_LOCATION=samplecrawler_selenium_1
).
Enter your scraper container with docker exec -ti YOUR_CONTAINER_NAME sh
, the command for me was docker exec -ti samplecrawler_my_scraper_1 sh
, cd into the right directory and run your scraper with scrapy crawl my_spider
.
The entire thing is on my github page and you can get it from here
Depends on.
Briefly...
If you want load variables on current console and execute you may use source myshellfile.sh
on your code. Example:
!#/bin/bash
set -x
echo "This is an example of run another INTO this session."
source my_lib_of_variables_and_functions.sh
echo "The function internal_function() is defined into my lib."
returned_value=internal_function()
echo $this_is_an_internal_variable
set +x
If you just want to execute a file and the only thing intersting for you is the result, you can do:
!#/bin/bash
set -x
./executing_only.sh
sh i_can_execute_this_way_too.sh
bash or_this_way.sh
set +x
I hope helps you. Thanks.
There are already lots of good answers provided by our beloved community members. I actually wanted to add the C# code tabSize and found this thread. There are many solutions I found and official VS Code docs is awesome. I just want to share my C# setting:
"[csharp]": {
"editor.insertSpaces": true,
"editor.tabSize": 4
},
just copy and paste above code to your settings.json
file and save. thanks
It works under mingw32/msys/cygwin/linux
ifeq "$(wildcard .dep)" ""
-include $(shell mkdir .dep) $(wildcard .dep/*)
endif
Available only on SQL Server 2008 and over is row-constructor in this form:
You could use
SELECT DISTINCT * FROM (VALUES (1), (1), (1), (2), (5), (1), (6)) AS X(a)
Many wrote about, among them:
You can run easy_install to install python packages in your home directory even without root access. There's a standard way to do this using site.USER_BASE which defaults to something like $HOME/.local or $HOME/Library/Python/2.7/bin and is included by default on the PYTHONPATH
To do this, create a .pydistutils.cfg in your home directory:
cat > $HOME/.pydistutils.cfg <<EOF
[install]
user=1
EOF
Now you can run easy_install without root privileges:
easy_install boto
Alternatively, this also lets you run pip without root access:
pip install boto
This works for me.
Source from Wesley Tanaka's blog : http://wtanaka.com/node/8095
you can use this on your button click activity
Intent webOpen = new Intent(android.content.Intent.ACTION_VIEW);
WebOpen.setData(Uri.parse("http://www.google.com"));
startActivity(myWebLink);
and import this on your code
import android.net.Uri;
just use
.modal-body {
max-height: calc(100vh - 210px);
overflow-y: auto;
}
it will arrange your modal and then give it an vertical scroll
When you use background-size: cover
the background image will automatically be stretched to cover the entire container. Aspect ratio is maintained however, so you will always lose part of the image, unless the aspect ratio of the image and the element it is applied to are identical.
I see two ways you could solve this:
Do not maintain the aspect ratio of the image by setting
background-size: 100% 100%
This will also make the image cover the
entire container, but the ratio will not be maintained. Disadvantage
is that this distorts your image, and therefore may look very weird,
depending on the image. With the image you are using in the fiddle, I
think you could get away with it though.
You could also calculate and set the height of the element with javascript, based on its width, so it gets the same ratio as the image. This calculation would have to be done on load and on resize. It should be easy enough with a few lines of code (feel free to ask if you want an example). Disadvantage of this method is that your width may become very small (on mobile devices), and therfore the calculated height also, which may cause the content of the container to overflow. This could be solved by changing the size of the content as well or something, but it adds some complexity to the solution/
You can also install it using conda (tested on Ubuntu):
conda create --name csharp
conda activate csharp
conda install -c conda-forge mono
Modern and very simple solution:
HTML:
<div class="container">
<div class="row">
<div class="col-md-3"></div>
<div class="col-md-9"></div>
</div>
</div>
CSS:
.row{
display: flex;
}
Case 1 : Yes, this works fine.
Case 2 : This will fail with the error ORA-01441 : cannot decrease column length because some value is too big.
Share and enjoy.
It is also possible to use this:
var user_name = document.forms[0].elements[0];
var user_email = document.forms[0].elements[1];
var user_message = document.forms[0].elements[2];
All the elements of forms are stored in an array by Javascript. This takes the elements from the first form and stores each value into a unique variable.
If efficiency is an issue and you have to build multiple different n-grams (up to a hundred as you say), but you want to use pure python I would do:
from itertools import chain
def n_grams(seq, n=1):
"""Returns an itirator over the n-grams given a listTokens"""
shiftToken = lambda i: (el for j,el in enumerate(seq) if j>=i)
shiftedTokens = (shiftToken(i) for i in range(n))
tupleNGrams = zip(*shiftedTokens)
return tupleNGrams # if join in generator : (" ".join(i) for i in tupleNGrams)
def range_ngrams(listTokens, ngramRange=(1,2)):
"""Returns an itirator over all n-grams for n in range(ngramRange) given a listTokens."""
return chain(*(n_grams(listTokens, i) for i in range(*ngramRange)))
Usage :
>>> input_list = input_list = 'test the ngrams generator'.split()
>>> list(range_ngrams(input_list, ngramRange=(1,3)))
[('test',), ('the',), ('ngrams',), ('generator',), ('test', 'the'), ('the', 'ngrams'), ('ngrams', 'generator'), ('test', 'the', 'ngrams'), ('the', 'ngrams', 'generator')]
~Same speed as NLTK:
import nltk
%%timeit
input_list = 'test the ngrams interator vs nltk '*10**6
nltk.ngrams(input_list,n=5)
# 7.02 ms ± 79 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
%%timeit
input_list = 'test the ngrams interator vs nltk '*10**6
n_grams(input_list,n=5)
# 7.01 ms ± 103 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
%%timeit
input_list = 'test the ngrams interator vs nltk '*10**6
nltk.ngrams(input_list,n=1)
nltk.ngrams(input_list,n=2)
nltk.ngrams(input_list,n=3)
nltk.ngrams(input_list,n=4)
nltk.ngrams(input_list,n=5)
# 7.32 ms ± 241 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
%%timeit
input_list = 'test the ngrams interator vs nltk '*10**6
range_ngrams(input_list, ngramRange=(1,6))
# 7.13 ms ± 165 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Repost from my previous answer.
I'll be brief but deadly. :) install -d will not work for you. It's simple. Try
$ npm install -g express
suggestion here looks like a good candidate for this question as well
Performing click event on a disabled element? Javascript jQuery
jQuery('input#submit').click(function(e) {
if ( something ) {
return false;
}
});
It is really hard to get autoconf 1.15 working on Mac. We hired an expert to get it working. Everything worked beautifully.
Later I happened to upgrade a Mac to High Sierra.
The Docker pipeline stopped working!
Even though autoconf 1.15 is working fine on the Mac.
How to fix,
This suggestion is noted in the mix on this QA page and elsewhere.
It then worked fine!
It likely has something to do with the aclocal.m4 and similar files. (But who knows really). I endlessly massaged those files ... but nothing.
For some unknown reason if you just scratch your repo and get the repo again: everything works!
I tried for hours every combo of touching/deleting etc etc the files in question, but no. Just check out the repo from scratch!
If you are willing to change your uri, you could also use PathVariable
.
@RequestMapping(value="/mapping/foo/{foo}/{bar}", method=RequestMethod.GET)
public String process(@PathVariable String foo,@PathVariable String bar) {
//Perform logic with foo and bar
}
NB: The first foo is part of the path, the second one is the PathVariable
I just came across this. I tried a few of the more popular answers, but in the end, what worked for me was Amazon's quick setup guide.
Tutorial: Setting Up Node.js on an Amazon EC2 Instance
The gist of the tutorial is:
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.0/install.sh | bash
. ~/.nvm/nvm.sh
nvm install 4.4.5
(NOTE: You can choose a different version. Check out the remote versions first by running $ nvm ls-remote
)$ node -e "console.log('Running Node.js' + process.version)"
Hopefully this helps the next person.
If you are into following Google's style guide:
Test, [
and [[
[[ ... ]]
reduces errors as no path name expansion or word splitting takes place between[[
and]]
, and[[ ... ]]
allows for regular expression matching where[ ... ]
does not.
# This ensures the string on the left is made up of characters in the
# alnum character class followed by the string name.
# Note that the RHS should not be quoted here.
# For the gory details, see
# E14 at https://tiswww.case.edu/php/chet/bash/FAQ
if [[ "filename" =~ ^[[:alnum:]]+name ]]; then
echo "Match"
fi
# This matches the exact pattern "f*" (Does not match in this case)
if [[ "filename" == "f*" ]]; then
echo "Match"
fi
# This gives a "too many arguments" error as f* is expanded to the
# contents of the current directory
if [ "filename" == f* ]; then
echo "Match"
fi
Setp 1 : Download the following apk files. 1)com.google.android.gms.apk (https://androidfilehost.com/?fid=95916177934534438) 2)com.android.vending-4.4.22.apk (https://androidfilehost.com/?fid=23203820527945795)
Step 2 : Create a new AVD without the google API's
Step 3 : Run the AVD (Start the emulator)
Step 4 : Install the downloaded apks using adb .
1)adb install com.google.android.gms-6.7.76_\(1745988-038\)-6776038-minAPI9.apk
2)adb install com.android.vending-4.4.22.apk
adb come up with android sdks/studio
Step 5 : Create the application in google developer console
Step 6 : Configure the api key in your Androidmanifest.xml and google api version.
Note : In step1 you need to download the apk based on your Android API level(..18,19,21..) and google play services version (5,5.1,6,6.5......)
This will work 100%.
You could also wrap the relevant text with
<span style="white-space: nowrap;"></span>
If you want the cells to resize depending on the content, then you must not specify a width to the table, the rows, or the cells.
If you don't want word wrap, assign the CSS style white-space: nowrap
to the cells.
I know this question is old. Other answers here suggesting Html.fromHtml()
method. I suggest you to use HtmlCompat.fromHtml()
from androidx.core.text.HtmlCompat
package. As this is backward compatible version of Html
class.
Sample code:
import androidx.core.text.HtmlCompat;
import android.text.Spanned;
import android.widget.TextView;
String htmlString = "<h1>Hello World!</h1>";
Spanned spanned = HtmlCompat.fromHtml(htmlString, HtmlCompat.FROM_HTML_MODE_COMPACT);
TextView tvOutput = (TextView) findViewById(R.id.text_view_id);
tvOutput.setText(spanned);
By this way you can avoid Android API version check and it's easy to use (single line solution).
If you are going to create a custom view, make sure it is extending SurfaceView then, you can redraw it with method getHolder().lockCanvas()
. Here is an example:
Canvas c = getHolder().lockCanvas();
c.drawText("Text", x, y, paint);
getHolder().unlockCanvasAndPost(c);
Splash screens should not be loaded from a layout file, there might still be some lag when loading it.
The best way is to create a Theme just for your SplashScreenActivity and set the android:windowBackground
to a drawable ressource.
https://www.bignerdranch.com/blog/splash-screens-the-right-way/
In a nutshell:
Declare your SplashScreenActivity in the manifest:
<activity
android:name=".activities.SplashScreenActivity"
android:theme="@style/SplashTheme"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
In your SplashScreenActivity.java:
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = new Intent(this, MainActivity_.class);
startActivity(intent);
finish();
}
Next create the ressource for the background window of your theme:
<style name="SplashTheme" parent="Theme.Bumpfie.Base">
<item name="android:windowBackground">@drawable/splash</item>
</style>
Drawable file splash.xml:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@android:color/white"/>
<item>
<bitmap
android:gravity="center"
android:src="@drawable/app_logo"/>
</item>
</layer-list>
The behaviour is on purpose:
Create responsive tables by wrapping any .table in .table-responsive to make them scroll horizontally on small devices (under 768px). When viewing on anything larger than 768px wide, you will not see any difference in these tables.
Which means tables are responsive by default (are adjusting their size). But only if you wish to not break your table's lines and add scrollbar when there is not enough room use .table-responsive
class.
If you take a look at bootstrap's source you will notice there is media query that only activates on XS screen size and it sets text of table to white-space: nowrap
which causes it to not breaking.
Simply remove .table-responsive
element/class from your html code.
although the answer is for Java, but the code can be easily adapted from this Kotlin String extension I came up with (adapted from that @brcolow provided):
private val escapeChars = charArrayOf(
'<',
'(',
'[',
'{',
'\\',
'^',
'-',
'=',
'$',
'!',
'|',
']',
'}',
')',
'?',
'*',
'+',
'.',
'>'
)
fun String.escapePattern(): String {
return this.fold("") {
acc, chr ->
acc + if (escapeChars.contains(chr)) "\\$chr" else "$chr"
}
}
fun main() {
println("(.*)".escapePattern())
}
prints \(\.\*\)
check it in action here https://pl.kotl.in/h-3mXZkNE
You can use this to get desktop workspace bounds of the primary screen:
System.Windows.SystemParameters.WorkArea
This is also useful for getting just the size of the primary screen:
System.Windows.SystemParameters.PrimaryScreenWidth
System.Windows.SystemParameters.PrimaryScreenHeight
You can use this function (I found it here: http://excelribbon.tips.net/T010780_Colors_in_an_IF_Function.html):
Function GetFillColor(Rng As Range) As Long
GetFillColor = Rng.Interior.ColorIndex
End Function
Here is an explanation, how to create user-defined functions: http://www.wikihow.com/Create-a-User-Defined-Function-in-Microsoft-Excel
In your worksheet, you can use the following: =GetFillColor(B5)
If you're using Docker and running Windows 10, you may want to stop the container(s) where the file may be running at. To show the statuses of your containers, run
docker ps -a
To stop them, simply run
docker stop <container name or container id>
This worked for me as I am running my local files using a .sh file
Even if you use string formatting, sometimes you still need white spaces at the beginning or the end of your string. For these cases, neither escaping with \
, nor xml:space
attribute helps. You must use HTML entity  
for a whitespace.
Use  
for non-breakable whitespace.
Use  
for regular space.
Other answers here address the general question of what the proper Content-Type
for an XML response is, and conclude (as with What's the difference between text/xml vs application/xml for webservice response) that both text/xml
and application/xml
are permissible. However, none address whether there are any rules specific to sitemaps.
Answer: there aren't. The sitemap spec is https://www.sitemaps.org, and using Google site:
searches you can confirm that it does not contain the words or phrases mime, mimetype, content-type, application/xml, or text/xml anywhere. In other words, it is entirely silent on the topic of what Content-Type
should be used for serving sitemaps.
In the absence of any commentary in the sitemap spec directly addressing this question, we can safely assume that the same rules apply as when choosing the Content-Type
of any other XML document - i.e. that it may be either text/xml
or application/xml
.
HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
HttpContext.Current.Response.Cache.SetValidUntilExpires(false);
HttpContext.Current.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.Cache.SetNoStore();
All requests get routed through default.aspx first - so assuming you can just pop in code behind there.
The data series names are defined by the column headers. Add the names to the column headers that you would like to use as titles for each of your data series, select all of the data (including the headers), then re-generate your graph. The names in the headers should then appear as the names in the legend for each series.
I made a node module to automate this task: mddir
node mddir "../relative/path/"
To install: npm install mddir -g
To generate markdown for current directory: mddir
To generate for any absolute path: mddir /absolute/path
To generate for a relative path: mddir ~/Documents/whatever.
The md file gets generated in your working directory.
Currently ignores node_modules, and .git folders.
If you receive the error 'node\r: No such file or directory', the issue is that your operating system uses different line endings and mddir can't parse them without you explicitly setting the line ending style to Unix. This usually affects Windows, but also some versions of Linux. Setting line endings to Unix style has to be performed within the mddir npm global bin folder.
Get npm bin folder path with:
npm config get prefix
Cd into that folder
brew install dos2unix
dos2unix lib/node_modules/mddir/src/mddir.js
This converts line endings to Unix instead of Dos
Then run as normal with: node mddir "../relative/path/".
|-- .bowerrc
|-- .jshintrc
|-- .jshintrc2
|-- Gruntfile.js
|-- README.md
|-- bower.json
|-- karma.conf.js
|-- package.json
|-- app
|-- app.js
|-- db.js
|-- directoryList.md
|-- index.html
|-- mddir.js
|-- routing.js
|-- server.js
|-- _api
|-- api.groups.js
|-- api.posts.js
|-- api.users.js
|-- api.widgets.js
|-- _components
|-- directives
|-- directives.module.js
|-- vendor
|-- directive.draganddrop.js
|-- helpers
|-- helpers.module.js
|-- proprietary
|-- factory.actionDispatcher.js
|-- services
|-- services.cardTemplates.js
|-- services.cards.js
|-- services.groups.js
|-- services.posts.js
|-- services.users.js
|-- services.widgets.js
|-- _mocks
|-- mocks.groups.js
|-- mocks.posts.js
|-- mocks.users.js
|-- mocks.widgets.js
This is a little old, but maybe someone will find my solution helpfull:
// Fix IE's indexOf Array
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (searchElement) {
if (this == null) throw new TypeError();
var t = Object(this);
var len = t.length >>> 0;
if (len === 0) return -1;
var n = 0;
if (arguments.length > 0) {
n = Number(arguments[1]);
if (n != n) n = 0;
else if (n != 0 && n != Infinity && n != -Infinity) n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
if (n >= len) return -1;
var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
for (; k < len; k++) if (k in t && t[k] === searchElement) return k;
return -1;
}
}
// add hasClass support
if (!Element.prototype.hasClass) {
Element.prototype.hasClass = function (classname) {
if (this == null) throw new TypeError();
return this.className.split(' ').indexOf(classname) === -1 ? false : true;
}
}
This should not be difficult. When creating a cell for your table, add a UITextField object to the cell's content view
UITextField *txtField = [[UITextField alloc] initWithFrame....]
...
[cell.contentView addSubview:txtField]
Set the delegate of the UITextField as self (ie your viewcontroller) Give a tag to the text field so you can identify which textfield was edited in your delegate methods. The keyboard should pop up when the user taps the text field. I got it working like this. Hope it helps.
Try trimming the string to make sure there is no extra white space:
Cursor c = db.rawQuery("SELECT * FROM tbl1 WHERE TRIM(name) = '"+name.trim()+"'", null);
Also use c.moveToFirst()
like @thinksteep mentioned.
This is a complete code for select statements.
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT column1,column2,column3 FROM table ", null);
if (c.moveToFirst()){
do {
// Passing values
String column1 = c.getString(0);
String column2 = c.getString(1);
String column3 = c.getString(2);
// Do something Here with values
} while(c.moveToNext());
}
c.close();
db.close();
If you need just file names like:
dir/subdir/file1.txt
dir/subdir2/file2.sql
dir2/subdir3/file6.php
(which I use as a source for tar command) you will also need to filter out commit messages.
In order to do this I use following command:
git log --name-only --oneline | grep -v '.{7} '
Grep command excludes (-v
param) every line which starts with seven symbols (which is the length of my git hash for git log
command) followed by space. So it filters out every git hash message
line and leave only lines with file names.
One useful improvement is to append uniq
to remove duplicate lines so it will looks as follow:
git log --name-only --oneline | grep -v '.{7} ' | uniq
Click in the grid so it has focus.
Ctrl+End
This will force the rest of the records back into the grid.
All credit to http://www.thatjeffsmith.com/archive/2012/03/how-to-export-sql-developer-query-results-without-re-running-the-query/
$dbc
is returning false. Your query has an error in it:
SELECT users.*, profile.* --You do not join with profile anywhere.
FROM users
INNER JOIN contact_info
ON contact_info.user_id = users.user_id
WHERE users.user_id=3");
The fix for this in general has been described by Raveren.
try boost::asio lib (http://www.boost.org/doc/libs/1_36_0/doc/html/boost_asio.html) it have lot examples.
You should try dplyr package
library(dplyr)
a <- data.frame(A = c(1, 2, 3, 4),
B = c(11, 12, 13, 14))
system.time({
for (i in 50:1000) {
b <- data.frame(A = i, B = i * i)
a <- bind_rows(a, b)
}
})
Output
user system elapsed
0.25 0.00 0.25
In contrast with using rbind function
a <- data.frame(A = c(1, 2, 3, 4),
B = c(11, 12, 13, 14))
system.time({
for (i in 50:1000) {
b <- data.frame(A = i, B = i * i)
a <- rbind(a, b)
}
})
Output
user system elapsed
0.49 0.00 0.49
There is some performance gain.
This is the correct way for getting the correct output.... However, childs parent id maybe sometimes printed as 1 because parent process gets terminated and the root process with pid = 1 controls this orphan process.
pid_t pid;
pid = fork();
if (pid == 0)
printf("This is the child process. My pid is %d and my parent's id
is %d.\n", getpid(), getppid());
else
printf("This is the parent process. My pid is %d and my parent's
id is %d.\n", getpid(), pid);
I would suggest using the JSONParser
class. It's very easy to use.
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET method
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) throws IOException {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters);
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (Exception ex) {
Log.d("Networking", ex.getLocalizedMessage());
throw new IOException("Error connecting");
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
Then in your application, create an instance of this class. You may want to pass the constructor 'GET' or 'POST' if desired.
public JSONParser jsonParser = new JSONParser();
try {
// Building Parameters ( you can pass as many parameters as you want)
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", name));
params.add(new BasicNameValuePair("age", 25));
// Getting JSON Object
JSONObject json = jsonParser.makeHttpRequest(YOUR_URL, "POST", params);
} catch (JSONException e) {
e.printStackTrace();
}
You could use sp_executesql
instead of exec
. That allows you to specify an output parameter.
declare @out_var varchar(max);
execute sp_executesql
N'select @out_var = ''hello world''',
N'@out_var varchar(max) OUTPUT',
@out_var = @out_var output;
select @out_var;
This prints "hello world".
I am having the same issue here is my scenario
i put empty('') where value is NULL now this '' value does not match with the parent table's id
here is things need to check , all value with presented in parent table otherwise remove data from parent table then try
UPDATE [TableName]
SET [ColumnName] = Replace([ColumnName], '[StringToRemove]', '[Replacement]')
In your instance it would be
UPDATE [TableName]
SET [ColumnName] = Replace([ColumnName], '[StringToRemove]', '')
Because there is no replacement (you want to get rid of it).
This will run on every row of the specified table. No need for a WHERE clause unless you want to specify only certain rows.
[]
is to select columns.When the indexing operator is passed a string or integer, it attempts to find a column with that particular name and return it as a Series.
So, in the question above: df[2]
searches for a column name matching the integer value 2
. This column does not exist and a KeyError
is raised.
Strangely, when given a slice, the DataFrame indexing operator selects rows and can do so by integer location or by index label.
df[2:3]
This will slice beginning from the row with integer location 2 up to 3, exclusive of the last element. So, just a single row. The following selects rows beginning at integer location 6 up to but not including 20 by every third row.
df[6:20:3]
You can also use slices consisting of string labels if your DataFrame index has strings in it. For more details, see this solution on .iloc vs .loc.
I almost never use this slice notation with the indexing operator as its not explicit and hardly ever used. When slicing by rows, stick with .loc/.iloc
.
Here we go:
update vehicles_vehicle v
set price=s.price_per_vehicle
from shipments_shipment s
where v.shipment_id=s.id;
Simple as I could make it. Thanks guys!
Can also do this:
-- Doesn't work apparently
update vehicles_vehicle
set price=s.price_per_vehicle
from vehicles_vehicle v
join shipments_shipment s on v.shipment_id=s.id;
But then you've got the vehicle table in there twice, and you're only allowed to alias it once, and you can't use the alias in the "set" portion.
YES, you can Update and Insert into view and that edit will be reflected on the original table....
BUT
1-the view should have all the NOT NULL values on the table
2-the update should have the same rules as table... "updating primary key related to other foreign key.. etc"...
var itens = null;_x000D_
$.getJSON("yourfile.json", function(data) {_x000D_
itens = data;_x000D_
itens.forEach(function(item) {_x000D_
console.log(item);_x000D_
});_x000D_
});_x000D_
console.log(itens);
_x000D_
<html>_x000D_
<head>_x000D_
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.2.min.js"></script>_x000D_
</head>_x000D_
<body>_x000D_
</body>_x000D_
</html>
_x000D_
The definitions are detailed at the Maven site's page Introduction to the Build Lifecycle, but I have tried to summarize:
Maven defines 4 items of a build process:
Lifecycle
Three built-in lifecycles (aka build lifecycles): default
, clean
, site
. (Lifecycle Reference)
Phase
Each lifecycle is made up of phases, e.g. for the default
lifecycle: compile
, test
, package
, install
, etc.
Plugin
An artifact that provides one or more goals.
Based on packaging type (jar
, war
, etc.) plugins' goals are bound to phases by default. (Built-in Lifecycle Bindings)
Goal
The task (action) that is executed. A plugin can have one or more goals.
One or more goals need to be specified when configuring a plugin in a POM. Additionally, in case a plugin does not have a default phase defined, the specified goal(s) can be bound to a phase.
Maven can be invoked with:
clean
, package
)<plugin-prefix>:<goal>
(e.g. dependency:copy-dependencies
)<plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>
(e.g. org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile
)with one or more combinations of any or all, e.g.:
mvn clean dependency:copy-dependencies package
Basically shared folders are renamed to synced folder from v1 to v2 (docs), under the bonnet it is still using vboxsf
between host and guest (there is known performance issues if there are large numbers of files/directories).
/vagrant
in guestVagrant is mounting the current working directory (where Vagrantfile
resides) as /vagrant
in the guest, this is the default behaviour.
See docs
NOTE: By default, Vagrant will share your project directory (the directory with the Vagrantfile) to /vagrant.
You can disable this behaviour by adding cfg.vm.synced_folder ".", "/vagrant", disabled: true
in your Vagrantfile
.
Based on the output /tmp
on host was NOT mounted during up time.
Use VAGRANT_INFO=debug vagrant up
or VAGRANT_INFO=debug vagrant reload
to start the VM for more output regarding why the synced folder is not mounted. Could be a permission issue (mode bits of /tmp
on host should be drwxrwxrwt
).
I did a test quick test using the following and it worked (I used opscode bento raring vagrant base box)
config.vm.synced_folder "/tmp", "/tmp/src"
output
$ vagrant reload
[default] Attempting graceful shutdown of VM...
[default] Setting the name of the VM...
[default] Clearing any previously set forwarded ports...
[default] Creating shared folders metadata...
[default] Clearing any previously set network interfaces...
[default] Available bridged network interfaces:
1) eth0
2) vmnet8
3) lxcbr0
4) vmnet1
What interface should the network bridge to? 1
[default] Preparing network interfaces based on configuration...
[default] Forwarding ports...
[default] -- 22 => 2222 (adapter 1)
[default] Running 'pre-boot' VM customizations...
[default] Booting VM...
[default] Waiting for VM to boot. This can take a few minutes.
[default] VM booted and ready for use!
[default] Configuring and enabling network interfaces...
[default] Mounting shared folders...
[default] -- /vagrant
[default] -- /tmp/src
Within the VM, you can see the mount info /tmp/src on /tmp/src type vboxsf (uid=900,gid=900,rw)
.
please follow this tutorial: https://www.petrikainulainen.net/programming/maven/creating-code-coverage-reports-for-unit-and-integration-tests-with-the-jacoco-maven-plugin/
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.15</version>
<configuration>
<!-- Sets the VM argument line used when unit tests are run. -->
<argLine>${surefireArgLine}</argLine>
<!-- Skips unit tests if the value of skip.unit.tests property is true -->
<skipTests>${skip.unit.tests}</skipTests>
<!-- Excludes integration tests when unit tests are run. -->
<excludes>
<exclude>**/IT*.java</exclude>
</excludes>
</configuration>
For installing NumPy via Anaconda(use below commands):
This is just a warning and it doesn't make problem for your project to run, you can just ignore it and continue coding. But if you're obsessed about clean coding, same as me, you have two options:
f1
then type trim trailing whitespace
.You can try this.
protected $rules_update = [
'email_address' => 'required|email|unique:users,email_address,'. $this->id,
'first_name' => "required",
'last_name' => "required",
'password' => "required|min:6|same:password_confirm",
'password_confirm' => "required:min:6|same:password",
'password_current' => "required:min:6"
];
I came across the same problem and adding this line to my application.properties solved the issue.
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration
It's one of the Spring's Automatic stuffs which you exclude it like excluding other stuffs such as actuators. I recommend looking at this link
Most up-to-date answer
I have re-worked @crush's neat solution for an updated, ASP.NET Core and Bootstrap 4 compatible way to solve this problem based on an IHtmlHelper
extension method:
public static class LinkExtensions
{
public static IHtmlContent ActiveActionLink(this IHtmlHelper html, string linkText, string actionName, string controllerName, object routeValues, object htmlAttributes)
{
return ActiveActionLink(html, linkText, actionName, controllerName, new RouteValueDictionary(routeValues), HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
}
public static IHtmlContent ActiveActionLink(this IHtmlHelper html, string linkText, string actionName, string controllerName, RouteValueDictionary routeValues, IDictionary<string, object> htmlAttributes)
{
var routeData = html.ViewContext.RouteData;
var routeAction = (string)routeData.Values["action"];
var routeController = (string)routeData.Values["controller"];
var active = controllerName.Equals(routeController) && actionName.Equals(routeAction);
using (var writer = new StringWriter())
{
writer.WriteLine($"<li class='nav-item {(active ? "active" : "")}'>");
html.ActionLink(linkText, actionName, controllerName, routeValues, htmlAttributes).WriteTo(writer, HtmlEncoder.Default);
writer.WriteLine("</li>");
return new HtmlString(writer.ToString());
}
}
}
Usage
<nav class="navbar">
<div class="collapse navbar-collapse">
<ul class="navbar-nav">
@Html.ActiveActionLink("Home", "Index", "Home", null, new { @class = "nav-link" })
@Html.ActiveActionLink("About", "About", "Home", null, new { @class = "nav-link" })
@Html.ActiveActionLink("Contact", "Contact", "TimeTracking", null, new { @class = "nav-link" })
</ul>
</div>
</nav>
The Wikipedia page on it is a good place to start.
To sum up:
float
is represented in 32 bits, with 1 sign bit, 8 bits of exponent, and 23 bits of the significand (or what follows from a scientific-notation number: 2.33728*1012; 33728 is the significand).
double
is represented in 64 bits, with 1 sign bit, 11 bits of exponent, and 52 bits of significand.
By default, Java uses double
to represent its floating-point numerals (so a literal 3.14
is typed double
). It's also the data type that will give you a much larger number range, so I would strongly encourage its use over float
.
There may be certain libraries that actually force your usage of float
, but in general - unless you can guarantee that your result will be small enough to fit in float
's prescribed range, then it's best to opt with double
.
If you require accuracy - for instance, you can't have a decimal value that is inaccurate (like 1/10 + 2/10
), or you're doing anything with currency (for example, representing $10.33 in the system), then use a BigDecimal
, which can support an arbitrary amount of precision and handle situations like that elegantly.
you can try this code to solve your problem
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="@drawable/login_selected" /> <!-- pressed -->
<item android:state_focused="true"
android:drawable="@drawable/login_mouse_over" /> <!-- focused -->
<item android:drawable="@drawable/login" /> <!-- default -->
</selector>
write this code in your drawable make a new resource and name it what you want and then write the name of this drwable in the button same as we refer to image src in android
Here's a way to do it without formulas or macros:
(from http://www.lenashore.com/2012/04/how-to-add-quotes-to-your-cells-in-excel-automatically/)
I faced this issue when trying to set something to redis. The problem was that I previously used "set" method to set data with a certain key, like
$redis->set('persons', $persons)
Later I decided to change to "hSet" method, and I tried it this way
foreach($persons as $person){
$redis->hSet('persons', $person->id, $person);
}
Then I got the aforementioned error. So, what I had to do is to go to redis-cli and manually delete "persons" entry with
del persons
It simply couldn't write different data structure under existing key, so I had to delete the entry and hSet then.
The following plpython snippet might come in handy.
CREATE EXTENSION IF NOT EXISTS plpythonu;
CREATE LANGUAGE plpythonu;
CREATE OR REPLACE FUNCTION json_update(data json, key text, value text)
RETURNS json
AS $$
import json
json_data = json.loads(data)
json_data[key] = value
return json.dumps(json_data, indent=4)
$$ LANGUAGE plpythonu;
-- Check how JSON looks before updating
SELECT json_update(content::json, 'CFRDiagnosis.mod_nbs', '1')
FROM sc_server_centre_document WHERE record_id = 35 AND template = 'CFRDiagnosis';
-- Once satisfied update JSON inplace
UPDATE sc_server_centre_document SET content = json_update(content::json, 'CFRDiagnosis.mod_nbs', '1')
WHERE record_id = 35 AND template = 'CFRDiagnosis';
If this happens to you on mac (as it did to me):
CSV (MS-DOS Comma-Separated)
Run the following script
with open(csv_filename, 'rU') as csvfile:
csvreader = csv.reader(csvfile)
for row in csvreader:
print ', '.join(row)
This may be resolved by fixing .idea/modules.xml
Check for https://stackoverflow.com/a/61343944/11910757
The most easy to build, easy to use implementation I have found is made by theguardianproject team: https://github.com/guardianproject/android-ffmpeg
Destructing assignment is the best way to solve your problem.
var a = 1;
var b = 2;
[a, b] = [b, a];
console.log("After swap a =", a, " and b =", b);
_x000D_
Here's the Swift 3.0 update to peacetype's comment:
textField.addTarget(nil, action:Selector(("firstResponderAction:")), for:.editingDidEndOnExit)
Windows Firewall was creating this error for me. SMTP was trying to post to GMAIL at port 587. Adding port 587 to the Outbound rule [Outbound HTTP/SMTP/RDP] resolved the issue.
with this method, using SYSTEM_UI_FLAG_IMMERSIVE_STICKY the full screen come back with one tap without any implementation. Just copy past this method below and call it where you want in your activity. More details here
private void hideSystemUI() {
getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_IMMERSIVE
// Set the content to appear under the system bars so that the
// content doesn't resize when the system bars hide and show.
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
// Hide the nav bar and status bar
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN);
}
My problem was that the MySQL server wasn't actually installed. I had run the MySQL Installer, but it didn't install the MySQL server.
I reran the installer, click "Add", and then added MySQL server to the list. Now it works fine.
This depends on the compiler used. Do not blindly trust that nowadays compilers know better then humans how to inline and you should never use it for performance reasons, because it's linkage directive rather than optimization hint. While I agree that ideologically are these arguments correct encountering reality might be a different thing.
After reading multiple threads around I tried out of curiosity the effects of inline on the code I'm just working and the results were that I got measurable speedup for GCC and no speed up for Intel compiler.
(More detail: math simulations with few critical functions defined outside class, GCC 4.6.3 (g++ -O3), ICC 13.1.0 (icpc -O3); adding inline to critical points caused +6% speedup with GCC code).
So if you qualify GCC 4.6 as a modern compiler the result is that inline directive still matters if you write CPU intensive tasks and know where exactly is the bottleneck.
Here's the form I've been using in all my code.
private void DoGUISwitch()
{
Invoke( ( MethodInvoker ) delegate {
object1.Visible = true;
object2.Visible = false;
});
}
I've based this on the blog entry here. I have not had this approach fail me, so I see no reason to complicate my code with a check of the InvokeRequired
property.
Hope this helps.
You should really put a real link in there. I don't want to sound like a pedant, but that's a fairly bad habit to get into. JQuery and Ajax should always be the last thing you implement. If you have a link that goes no-where, you're not doing it right.
I'm not busting your balls, I mean that with all the best intention.
In CurrentGame
component you need to change initial state because you are trying use loop for participants
but this property is undefined
that's why you get error.,
getInitialState: function(){
return {
data: {
participants: []
}
};
},
also, as player
in .map
is Object
you should get properties from it
this.props.data.participants.map(function(player) {
return <li key={player.championId}>{player.summonerName}</li>
// -------------------^^^^^^^^^^^---------^^^^^^^^^^^^^^
})
object cannot be defined staticly but this works
final Class B{
static $var;
static function init(){
self::$var = new A();
}
B::init();
1.Open postman app 2.Enter the URL in the URL bar in postman app along with the name of the design.Use slash(/) after URL to give the design name. 3.Select POST from the dropdown list from URL textbox. 4.Select raw from buttons available below the URL textbox. 5.Select JSON from the dropdown. 6.In the text area enter your data to be updated and enter send. 7.Select GET from dropdown list from URL textbox and enter send to see the updated result.
please try this regex (allow only Alphabets and space)
"[a-zA-Z][a-zA-Z ]*"
if you want it for IOS then,
NSString *yourstring = @"hello";
NSString *Regex = @"[a-zA-Z][a-zA-Z ]*";
NSPredicate *TestResult = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",Regex];
if ([TestResult evaluateWithObject:yourstring] == true)
{
// validation passed
}
else
{
// invalid name
}
Do you want to order it?
Select * From temp where mydate > '2009-06-29 04:00:44' ORDER BY mydate;
I've found a nice solution written by Mike on sapiensworks. It is as simple as using a directive that watches for changes on your model:
.directive('ngUpdateHidden',function() {
return function(scope, el, attr) {
var model = attr['ngModel'];
scope.$watch(model, function(nv) {
el.val(nv);
});
};
})
and then bind your input:
<input type="hidden" name="item.Name" ng-model="item.Name" ng-update-hidden />
But the solution provided by tymeJV could be better as input hidden doesn't fire change event in javascript as yycorman told on this post, so when changing the value through a jQuery plugin will still work.
Edit I've changed the directive to apply the a new value back to the model when change event is triggered, so it will work as an input text.
.directive('ngUpdateHidden', function () {
return {
restrict: 'AE', //attribute or element
scope: {},
replace: true,
require: 'ngModel',
link: function ($scope, elem, attr, ngModel) {
$scope.$watch(ngModel, function (nv) {
elem.val(nv);
});
elem.change(function () { //bind the change event to hidden input
$scope.$apply(function () {
ngModel.$setViewValue( elem.val());
});
});
}
};
})
so when you trigger $("#yourInputHidden").trigger('change')
event with jQuery, it will update the binded model as well.
You have to create a different values
folder for different screens and put dimens.xml
file according to densities.
1) values
2) values-hdpi (320x480 ,480x800)
3) values-large-hdpi (600x1024)
4) values-xlarge (720x1280 ,768x1280 ,800x1280 ,Nexus7 ,Nexus10)
5) values-sw480dp (5.1' WVGA screen)
6) values-xhdpi (Nexus4 , Galaxy Nexus)
Simple Way to find the occurrence of string value in an array using Java 8 features.
public void checkDuplicateOccurance() {
List<String> duplicateList = new ArrayList<String>();
duplicateList.add("Cat");
duplicateList.add("Dog");
duplicateList.add("Cat");
duplicateList.add("cow");
duplicateList.add("Cow");
duplicateList.add("Goat");
Map<String, Long> couterMap = duplicateList.stream().collect(Collectors.groupingBy(e -> e.toString(),Collectors.counting()));
System.out.println(couterMap);
}
Output : {Cat=2, Goat=1, Cow=1, cow=1, Dog=1}
You can notice "Cow" and cow are not considered as same string, in case you required it under same count, use .toLowerCase(). Please find the snippet below for the same.
Map<String, Long> couterMap = duplicateList.stream().collect(Collectors.groupingBy(e -> e.toString().toLowerCase(),Collectors.counting()));
Output : {cat=2, cow=2, goat=1, dog=1}
Two other alternatives:
a combination of NULLIF
and NVL2
. You can only use this if emp_id
is NOT NULL
, which it is in your case:
select nvl2(nullif(emp_id,1),'False','True') from employee;
simple CASE
expression (Mt. Schneiders used a so-called searched CASE
expression)
select case emp_id when 1 then 'True' else 'False' end from employee;
Try this set of code to download a CSV file from the server.
byte[] Content= File.ReadAllBytes(FilePath); //missing ;
Response.ContentType = "text/csv";
Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".csv");
Response.BufferOutput = true;
Response.OutputStream.Write(Content, 0, Content.Length);
Response.End();
Sys.Objects Table contains row for each user-defined, schema-scoped object .
Constraints created like Primary Key or others will be the object and Table name will be the parent_object
Query sys.Objects and collect the Object's Ids of Required Type
declare @TableName nvarchar(50)='TblInvoice' -- your table name
declare @TypeOfKey nvarchar(50)='PK' -- For Primary key
SELECT Name FROM sys.objects
WHERE type = @TypeOfKey
AND parent_object_id = OBJECT_ID (@TableName)
Simpler way to solve is as
s = '1dfss3sw235fsf7s'
count = 0
temp = list(s)
for item in temp:
if(item.isdigit()):
count = count + 1
else:
pass
print count
I think you can't achieve what you want in a more efficient manner than you proposed.
The underlying problem is that the timestamps (as you seem aware) are made up of two parts. The data that represents the UTC time, and the timezone, tz_info. The timezone information is used only for display purposes when printing the timezone to the screen. At display time, the data is offset appropriately and +01:00 (or similar) is added to the string. Stripping off the tz_info value (using tz_convert(tz=None)) doesn't doesn't actually change the data that represents the naive part of the timestamp.
So, the only way to do what you want is to modify the underlying data (pandas doesn't allow this... DatetimeIndex are immutable -- see the help on DatetimeIndex), or to create a new set of timestamp objects and wrap them in a new DatetimeIndex. Your solution does the latter:
pd.DatetimeIndex([i.replace(tzinfo=None) for i in t])
For reference, here is the replace
method of Timestamp
(see tslib.pyx):
def replace(self, **kwds):
return Timestamp(datetime.replace(self, **kwds),
offset=self.offset)
You can refer to the docs on datetime.datetime
to see that datetime.datetime.replace
also creates a new object.
If you can, your best bet for efficiency is to modify the source of the data so that it (incorrectly) reports the timestamps without their timezone. You mentioned:
I want to work with timezone naive timeseries (to avoid the extra hassle with timezones, and I do not need them for the case I am working on)
I'd be curious what extra hassle you are referring to. I recommend as a general rule for all software development, keep your timestamp 'naive values' in UTC. There is little worse than looking at two different int64 values wondering which timezone they belong to. If you always, always, always use UTC for the internal storage, then you will avoid countless headaches. My mantra is Timezones are for human I/O only.
First google search yielded me this answer. So I thought of updating this with newer version of attach, detach.
Create database dbname
On
(
Filename= 'path where you copied files',
Filename ='path where you copied log'
)
For attach;
Further,if your database is cleanly shutdown(there are no active transactions while database was shutdown) and you dont have log file,you can use below method,SQL server will create a new transaction log file..
Create database dbname
On
(
Filename= 'path where you copied files'
)
For attach;
if you don't specify transaction log file,SQL will try to look in the default path and will try to use it irrespective of whether database was cleanly shutdown or not..
Here is what MSDN has to say about this..
If a read-write database has a single log file and you do not specify a new location for the log file, the attach operation looks in the old location for the file. If it is found, the old log file is used, regardless of whether the database was shut down cleanly. However, if the old log file is not found and if the database was shut down cleanly and has no active log chain, the attach operation attempts to build a new log file for the database.
There are some restrictions with this approach and some side affects too..
1.attach-and-detach operations both disable cross-database ownership chaining for the database
2.Database trustworthy is set to off
3.Detaching a read-only database loses information about the differential bases of differential backups.
Most importantly..you can't attach a database with recent versions to an earlier version
References:
https://msdn.microsoft.com/en-in/library/ms190794.aspx
You can use the JSON stringify
method.
JSON.stringify({x: 5, y: 6}); // '{"x":5,"y":6}' or '{"y":6,"x":5}'
There is pretty good support for this across the board when it comes to browsers, as shown on http://caniuse.com/#search=JSON. You will note, however, that versions of IE earlier than 8 do not support this functionality natively.
If you wish to cater to those users as well you will need a shim. Douglas Crockford has provided his own JSON Parser on github.
It is similar to x = (x >> 1)
.
(operand1)(operator)=(operand2) implies(=>) (operand1)=(operand1)(operator)(operand2)
It shifts the binary value of x by one to the right.
E.g.
int x=3; // binary form (011)
x = x >> 1; // zero shifted in from the left, 1 shifted out to the right:
// x=1, binary form (001)
a:active
: when you click on the link and hold it (active!).
a:visited
: when the link has already been visited.
If you want the link corresponding to the current page to be highlighted, you can define some specific style to the link -
.currentLink {
color: #640200;
background-color: #000000;
}
Add this new class only to the corresponding li
(link), either on server-side or on client-side (using JavaScript).
$('input:checked').map(function(i, e) {return e.value}).toArray();
Just choose Original image
option when adding an image to assets
in Xcode
If you have the script editor open you will see the logs under View->Logs. If your script has an onedit trigger, make a change to the spreadsheet which should trigger the function with the script editor opened in a second tab. Then go to the script editor tab and open the log. You will see whatever your function passes to the logger.
Basically as long as the script editor is open, the event will write to the log and show it for you. It will not show if someone else is in the file elsewhere.
There are 3 basic commands to compare files in unix:
cmp
: This command is used to compare two files byte by byte and as any mismatch occurs,it echoes it on the screen.if no mismatch occurs i gives no response.
syntax:$cmp file1 file2.
comm
: This command is used to find out the records available in one but not in another
diff
<meta charset='utf-8'> overrides the apache default charset (cf /etc/apache2/conf.d/charset)
If this is not enough, then you probably created your original file with iso-8859-1 encoding character set. You have to convert it to the proper character set:
iconv -f ISO-8859-1 -t UTF-8 source_file.php -o new file.php
Tried this out quickly in the interactive shell:
>>> l = ['a', 'ab', 'abc', 'bac']
>>> [x for x in l if 'ab' in x]
['ab', 'abc']
>>>
Why does this work? Because the in
operator is defined for strings to mean: "is substring of".
Also, you might want to consider writing out the loop as opposed to using the list comprehension syntax used above:
l = ['a', 'ab', 'abc', 'bac']
result = []
for s in l:
if 'ab' in s:
result.append(s)
If you already have a service and want it to work all the time, you need to add 2 things:
in the service itself:
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
In the manifest:
android:launchMode="singleTop"
No need to add bind unless you need it in the service.
Honestly, I had problems with bundler circular dependencies and the best way to go is rm -rf .bundle
. Save yourselves the headache and just use the hammer.
The UN maintains a list of countries and "states" / regions for economic trade. That DB is available here: http://www.unece.org/cefact/locode/welcome.html
Will something like this work for you?
>>> def namestr(**kwargs):
... for k,v in kwargs.items():
... print "%s = %s" % (k, repr(v))
...
>>> namestr(a=1, b=2)
a = 1
b = 2
And in your example:
>>> choice = {'key': 24; 'data': None}
>>> namestr(choice=choice)
choice = {'data': None, 'key': 24}
>>> printvars(**globals())
__builtins__ = <module '__builtin__' (built-in)>
__name__ = '__main__'
__doc__ = None
namestr = <function namestr at 0xb7d8ec34>
choice = {'data': None, 'key': 24}
commons-lang SerializationUtils - using serialization - if all classes are in your control and you can force implementing Serializable
.
Java Deep Cloning Library - using reflection - in cases when the classes or the objects you want to clone are out of your control (a 3rd party library) and you can't make them implement Serializable
, or in cases you don't want to implement Serializable
.
commons-beanutils BeanUtils - in most cases.
Spring BeanUtils - if you are already using spring and hence have this utility on the classpath.
I deliberately omitted the "do-it-yourself" option - the API's above provide a good control over what to and what not to clone (for example using transient
, or String[] ignoreProperties
), so reinventing the wheel isn't preferred.
You can make your own itoa
, with this function:
void my_utoa(int dataIn, char* bffr, int radix){
int temp_dataIn;
temp_dataIn = dataIn;
int stringLen=1;
while ((int)temp_dataIn/radix != 0){
temp_dataIn = (int)temp_dataIn/radix;
stringLen++;
}
//printf("stringLen = %d\n", stringLen);
temp_dataIn = dataIn;
do{
*(bffr+stringLen-1) = (temp_dataIn%radix)+'0';
temp_dataIn = (int) temp_dataIn / radix;
}while(stringLen--);}
and this is example:
char buffer[33];
int main(){
my_utoa(54321, buffer, 10);
printf(buffer);
printf("\n");
my_utoa(13579, buffer, 10);
printf(buffer);
printf("\n");
}
Stream: In laymen terms stream is data , most generic stream is binary representation of data.
Input Stream : If you are reading data from a file or any other source , stream used is input stream. In a simpler terms input stream acts as a channel to read data.
Output Stream : If you want to read and process data from a source (file etc) you first need to save the data , the mean to store data is output stream .
Suppose gamma1 and gamma2 are two such columns for which df.isnull().any() gives True value , the following code can be used to print the rows.
bool1 = pd.isnull(df['gamma1'])
bool2 = pd.isnull(df['gamma2'])
df[bool1]
df[bool2]
Using C# 7, add this extension method to any project of your solution:
public static class IDictionaryExtensions
{
public static IEnumerable<(TKey, TValue)> Tuples<TKey, TValue>(
this IDictionary<TKey, TValue> dict)
{
foreach (KeyValuePair<TKey, TValue> kvp in dict)
yield return (kvp.Key, kvp.Value);
}
}
And use this simple syntax
foreach (var(id, value) in dict.Tuples())
{
// your code using 'id' and 'value'
}
Or this one, if you prefer
foreach ((string id, object value) in dict.Tuples())
{
// your code using 'id' and 'value'
}
In place of the traditional
foreach (KeyValuePair<string, object> kvp in dict)
{
string id = kvp.Key;
object value = kvp.Value;
// your code using 'id' and 'value'
}
The extension method transforms the KeyValuePair
of your IDictionary<TKey, TValue>
into a strongly typed tuple
, allowing you to use this new comfortable syntax.
It converts -just- the required dictionary entries to tuples
, so it does NOT converts the whole dictionary to tuples
, so there are no performance concerns related to that.
There is a only minor cost calling the extension method for creating a tuple
in comparison with using the KeyValuePair
directly, which should NOT be an issue if you are assigning the KeyValuePair
's properties Key
and Value
to new loop variables anyway.
In practice, this new syntax suits very well for most cases, except for low-level ultra-high performance scenarios, where you still have the option to simply not use it on that specific spot.
Check this out: MSDN Blog - New features in C# 7
JQuery Code:
$('#mySelect').change(function () {
$('#mySelect').css("background", $("select option:selected").css("background-color"));
});
This will replace the select
's background-color
with selected option
's background-color
.
These work
SET GLOBAL LOG_SLOW_TIME = 1;
SET GLOBAL LOG_QUERIES_NOT_USING_INDEXES = ON;
Broken on my setup 5.1.42
SET GLOBAL LOG_SLOW_QUERIES = ON;
SET GLOBAL SLOW_QUERY_LOG = ON;
set @@global.log_slow_queries=1;
http://bugs.mysql.com/bug.php?id=32565
Looks like the best way to do this is set log_slow_time very high thus "turning off" the slow query log. Lower log_slow_time to enable it. Use the same trick (set to OFF) for log_queries_not_using_indexes.
<textarea cols='60' rows='8'>This is my statement one.
This is my statement2</textarea>
Fiddle showing that it works: http://jsfiddle.net/trott/5vu28/.
If you really want this to be on a single line in the source file, you could insert the HTML character references for a line feed and a carriage return as shown in the answer from @Bakudan:
<textarea cols='60' rows='8'>This is my statement one. This is my statement2</textarea>
_x000D_
Beautiful Soup handles entity conversion. In Beautiful Soup 3, you'll need to specify the convertEntities
argument to the BeautifulSoup
constructor (see the 'Entity Conversion' section of the archived docs). In Beautiful Soup 4, entities get decoded automatically.
>>> from BeautifulSoup import BeautifulSoup
>>> BeautifulSoup("<p>£682m</p>",
... convertEntities=BeautifulSoup.HTML_ENTITIES)
<p>£682m</p>
>>> from bs4 import BeautifulSoup
>>> BeautifulSoup("<p>£682m</p>")
<html><body><p>£682m</p></body></html>
I've found that scrolling in viewWillAppear
may not work reliably because the collection view hasn't finished it's layout yet; you may scroll to the wrong item.
I've also found that scrolling in viewDidAppear
will cause a momentary flash of the unscrolled view to be visible.
And, if you scroll every time through viewDidLayoutSubviews
, the user won't be able to manually scroll because some collection layouts cause subview layout every time you scroll.
Here's what I found works reliably:
Objective C :
- (void)viewDidLayoutSubviews {
[super viewDidLayoutSubviews];
// If we haven't done the initial scroll, do it once.
if (!self.initialScrollDone) {
self.initialScrollDone = YES;
[self.collectionView scrollToItemAtIndexPath:self.myInitialIndexPath
atScrollPosition:UICollectionViewScrollPositionRight animated:NO];
}
}
Swift :
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
if (!self.initialScrollDone) {
self.initialScrollDone = true
self.testNameCollectionView.scrollToItem(at:selectedIndexPath, at: .centeredHorizontally, animated: true)
}
}
You always need to check for XACT_STATE()
, irrelevant of the XACT_ABORT
setting. I have an example of a template for stored procedures that need to handle transactions in the TRY/CATCH context at Exception handling and nested transactions:
create procedure [usp_my_procedure_name]
as
begin
set nocount on;
declare @trancount int;
set @trancount = @@trancount;
begin try
if @trancount = 0
begin transaction
else
save transaction usp_my_procedure_name;
-- Do the actual work here
lbexit:
if @trancount = 0
commit;
end try
begin catch
declare @error int, @message varchar(4000), @xstate int;
select @error = ERROR_NUMBER(),
@message = ERROR_MESSAGE(),
@xstate = XACT_STATE();
if @xstate = -1
rollback;
if @xstate = 1 and @trancount = 0
rollback
if @xstate = 1 and @trancount > 0
rollback transaction usp_my_procedure_name;
raiserror ('usp_my_procedure_name: %d: %s', 16, 1, @error, @message) ;
end catch
end
I faced this problem, I solved it to give permissions to nginx user and group something like this:
chown -R nginx:nginx /username/test/static
If its SQL Server you can do it on the column properties within design view
Try this?:
ALTER TABLE dbo.TableName
ADD CONSTRAINT DF_TableName_ColumnName
DEFAULT '01/01/2000' FOR ColumnName
Just call ID:
public void delNoti(int id) {((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).cancel(id);}
I just put an index.html file in /htdocs and type in http://127.0.0.1/index.html - and up comes the html.
Add a folder "named Forum" and type in 127.0.0.1/forum/???.???
I was running into the same problem yesterday with my new laptop (all new installation), with the only execption that for me Cordova said:
Requirements check failed for JDK 8 ('1.8.*')! Detected version: null
That Detected version: null was the actual problem for me!
When looking into the check_reqs.js (as mentioned in a post above) you will notice that this is where the magic happens: It contains a function "check_java" that, at some point, uses "execa" to retrieve the installed version of Java:
return execa('javac', ['-version'], { all: true })
.then(({ all: output }) => {
// Java <= 8 writes version info to stderr, Java >= 9 to stdout
const match = /javac\s+([\d.]+)/i.exec(output);
return match && match[1];
}
The problem for me was that, for whatever reason, I had an outdated version of "execa" which does not contain the "all" property that was used for the output. Hence, the retrieved version of Java was always undefined.
By adding "execa": "^4.0.2"
to my dependencies in the package.json and running "npm i" again I was able to fix this problem.
Just wanted to share this insight.
On MacOSX,
This is what worked for me
/etc/init.d/redis restart
/etc/init.d/redis stop
/etc/init.d/redis start
If you open your resource file and change the access modifier to public or internal it will generate a class from your resource file which allows you to create strongly typed resource references.
Which means you can do something like this instead (using C# 6.0). Then you dont have to remember if firstname was lowercased or camelcased. And you can see if other properties use the same resource value with a find all references.
[Display(Name = nameof(PropertyNames.FirstName), ResourceType = typeof(PropertyNames))]
public string FirstName { get; set; }
An example under Linux (Fedora 16) shows that memory is freed when R is closed:
$ free -m
total used free shared buffers cached
Mem: 3829 2854 974 0 344 1440
-/+ buffers/cache: 1069 2759
Swap: 4095 85 4010
2854 megabytes is used. Next I open an R session and create a large matrix of random numbers:
m = matrix(runif(10e7), 10000, 1000)
when the matrix is created, 3714 MB is used:
$ free -m
total used free shared buffers cached
Mem: 3829 3714 115 0 344 1442
-/+ buffers/cache: 1927 1902
Swap: 4095 85 4010
After closing the R session, I nicely get back the memory I used (2856 MB free):
$ free -m
total used free shared buffers cached
Mem: 3829 2856 972 0 344 1442
-/+ buffers/cache: 1069 2759
Swap: 4095 85 4010
Ofcourse you use Windows, but you could repeat this excercise in Windows and report how the available memory develops before and after you create this large dataset in R.
Use [attr.disabled] instead [disabled], in my case it works ok
From Framework Design Guidelines and FxCop rules.:
1. Custom Exception should have a name that ends with Exception
class MyException : Exception
2. Exception should be public
public class MyException : Exception
3. CA1032: Exception should implements standard constructors.
A serialization constructor protected if the type is not sealed and private if the type is sealed. Based on MSDN:
[Serializable()]
public class MyException : Exception
{
public MyException()
{
// Add any type-specific logic, and supply the default message.
}
public MyException(string message): base(message)
{
// Add any type-specific logic.
}
public MyException(string message, Exception innerException):
base (message, innerException)
{
// Add any type-specific logic for inner exceptions.
}
protected MyException(SerializationInfo info,
StreamingContext context) : base(info, context)
{
// Implement type-specific serialization constructor logic.
}
}
or
[Serializable()]
public sealed class MyException : Exception
{
public MyException()
{
// Add any type-specific logic, and supply the default message.
}
public MyException(string message): base(message)
{
// Add any type-specific logic.
}
public MyException(string message, Exception innerException):
base (message, innerException)
{
// Add any type-specific logic for inner exceptions.
}
private MyException(SerializationInfo info,
StreamingContext context) : base(info, context)
{
// Implement type-specific serialization constructor logic.
}
}
I would say not possible in most browsers, at least not without some additional plugins. And in any case I would try to avoid relying on the browser's zoom as the implementations vary (some browsers only zoom the fonts, others zoom the images, too etc). Unless you don't care much about user experience.
If you need a more reliable zoom, then consider zooming the page fonts and images with JavaScript and CSS, or possibly on the server side. The image and layout scaling issues could be addressed this way. Of course, this requires a bit more work.
You can use the function like below to get serialized XML from any object.
public static bool Serialize<T>(T value, ref string serializeXml)
{
if (value == null)
{
return false;
}
try
{
XmlSerializer xmlserializer = new XmlSerializer(typeof(T));
StringWriter stringWriter = new StringWriter();
XmlWriter writer = XmlWriter.Create(stringWriter);
xmlserializer.Serialize(writer, value);
serializeXml = stringWriter.ToString();
writer.Close();
return true;
}
catch (Exception ex)
{
return false;
}
}
You can call this from the client.
Another situation not yet mentioned is when one will have a large number of items, each of which consists of a fixed bunch of related-but-independent variables stuck together (e.g. the coordinates of a point, or the vertices of a 3d triangle). An array of exposed-field structures will allow the its elements to be efficiently modified "in place"--something which is not possible with any other collection type. Because an array of structures holds its elements consecutively in RAM, sequential accesses to array elements can be very fast. In situations where code will need to make many sequential passes through an array, an array of structures may outperform an array or other collection of class object references by a factor of 2:1; further, the ability to update elements in place may allow an array of structures to outperform any other kind of collection of structures.
Although arrays are not resizable, it is not difficult to have code store an array reference along with the number of elements that are in use, and replace the array with a larger one as required. Alternatively, one could easily write code for a type which behaved much like a List<T>
but exposed its backing store, thus allowing one to say either MyPoints.Add(nextPoint);
or MyPoints.Items[23].X += 5;
. Note that the latter would not necessarily throw an exception if code tried to access beyond the end of the list, but usage would otherwise be conceptually quite similar to List<T>
.
HEAD
is (direct or indirect, i.e. symbolic) reference to the current commit. It is a commit that you have checked in the working directory (unless you made some changes, or equivalent), and it is a commit on top of which "git commit" would make a new one. Usually HEAD
is symbolic reference to some other named branch; this branch is currently checked out branch, or current branch. HEAD
can also point directly to a commit; this state is called "detached HEAD", and can be understood as being on unnamed, anonymous branch.
And @
alone is a shortcut for HEAD
, since Git 1.8.5
ORIG_HEAD
is previous state of HEAD
, set by commands that have possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1}
is roughly equivalent to ORIG_HEAD
(HEAD@{1}
is always last value of HEAD
, ORIG_HEAD
is last value of HEAD
before dangerous operation).
For more information read git(1) manpage / [gitrevisions(7) manpage][git-revisions], Git User's Manual, the Git Community Book and Git Glossary
Use split
and map
function:
var str = "123, 124, 234,252";
var arr = str.split(",");
arr = arr.map(function (val) { return +val + 1; });
Notice +val
- string is casted to a number.
Or shorter:
var str = "123, 124, 234,252";
var arr = str.split(",").map(function (val) { return +val + 1; });
Today I'd advise against using +
operator to cast variable to a number. Instead I'd go with a more explicit but also more readable Number
call:
var str = "123, 124, 234,252";_x000D_
var arr = str.split(",").map(function (val) {_x000D_
return Number(val) + 1;_x000D_
});_x000D_
console.log(arr);
_x000D_
ECMAScript 2015 introduced arrow function so it could be used instead to make the code more concise:
var str = "123, 124, 234,252";_x000D_
var arr = str.split(",").map(val => Number(val) + 1);_x000D_
console.log(arr);
_x000D_
To Start Jenkins through Command Line
Run CMD with admin
You can run following commands
"net start servicename" to start
"net restart servicename" to restart
"net stop servicename" to stop service
for more reference https://www.windows-commandline.com/start-stop-service-command-line/
You can use:
df.set_value('Row_index', 'Column_name', value)
set_valye
is ~100 times faster than .ix
method. It also better then use df['Row_index']['Column_name'] = value
.
But since set_value
is deprecated now so .iat
/.at
are good replacements.
For example if we have this data_frame
A B C
0 1 8 4
1 3 9 6
2 22 33 52
if we want to modify the value of the cell [0,"A"] we can do
df.iat[0,0] = 2
or df.at[0,'A'] = 2
i used hasAnyRole('ROLE_ADMIN','ROLE_USER')
but i was getting bean creation below error
Error creating bean with name 'org.springframework.security.web.access.intercept.FilterSecurityInterceptor#0': Cannot create inner bean '(inner bean)' of type [org.springframework.security.web.access.expression.ExpressionBasedFilterInvocationSecurityMetadataSource] while setting bean property 'securityMetadataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#2': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.security.web.access.expression.ExpressionBasedFilterInvocationSecurityMetadataSource]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: Expected a single expression attribute for [/user/*]
then i tried
access="hasRole('ROLE_ADMIN') or hasRole('ROLE_USER')"
and it's working fine for me.
as one of my user is admin as well as user.
for this you need to add use-expressions="true" auto-config="true"
followed by http tag
<http use-expressions="true" auto-config="true" >.....</http>
I also needed the current screen dimension, specifically the Work-area, which returned the rectangle excluding the Taskbar width.
I used it in order to reposition a window, which is opened to the right and down to where the mouse is positioned. Since the window is fairly large, in many cases it got out of the screen bounds. The following code is based on @e-j answer: This will give you the current screen.... The difference is that I also show my repositioning algorithm, which I assume is actually the point.
The code:
using System.Windows;
using System.Windows.Forms;
namespace MySample
{
public class WindowPostion
{
/// <summary>
/// This method adjust the window position to avoid from it going
/// out of screen bounds.
/// </summary>
/// <param name="topLeft">The requiered possition without its offset</param>
/// <param name="maxSize">The max possible size of the window</param>
/// <param name="offset">The offset of the topLeft postion</param>
/// <param name="margin">The margin from the screen</param>
/// <returns>The adjusted position of the window</returns>
System.Drawing.Point Adjust(System.Drawing.Point topLeft, System.Drawing.Point maxSize, int offset, int margin)
{
Screen currentScreen = Screen.FromPoint(topLeft);
System.Drawing.Rectangle rect = currentScreen.WorkingArea;
// Set an offset from mouse position.
topLeft.Offset(offset, offset);
// Check if the window needs to go above the task bar,
// when the task bar shadows the HUD window.
int totalHight = topLeft.Y + maxSize.Y + margin;
if (totalHight > rect.Bottom)
{
topLeft.Y -= (totalHight - rect.Bottom);
// If the screen dimensions exceed the hight of the window
// set it just bellow the top bound.
if (topLeft.Y < rect.Top)
{
topLeft.Y = rect.Top + margin;
}
}
int totalWidth = topLeft.X + maxSize.X + margin;
// Check if the window needs to move to the left of the mouse,
// when the HUD exceeds the right window bounds.
if (totalWidth > rect.Right)
{
// Since we already set an offset remove it and add the offset
// to the other side of the mouse (2x) in addition include the
// margin.
topLeft.X -= (maxSize.X + (2 * offset + margin));
// If the screen dimensions exceed the width of the window
// don't exceed the left bound.
if (topLeft.X < rect.Left)
{
topLeft.X = rect.Left + margin;
}
}
return topLeft;
}
}
}
Some explanations:
1) topLeft - position of the top left at the desktop (works
for multi screens - with different aspect ratio).
Screen1 Screen2
- +-------------------++-------------------+ Screen3
? ¦ ¦¦ ¦+-----------------+ -
¦ ¦ ¦¦ ¦¦ ?- ¦ ?
1080 ¦ ¦ ¦¦ ¦¦ ¦ ¦
¦ ¦ ¦¦ ¦¦ ¦ ¦ 900
? ¦ ¦¦ ¦¦ ¦ ?
- +-------------------++-------------------++-----------------+ -
--------- --------- --------
¦?-----------------?¦¦?-----------------?¦¦?---------------?¦
1920 1920 1440
If the mouse is in Screen3 a possible value might be:
topLeft.X=4140 topLeft.Y=195
2) offset - the offset from the top left, one value for both
X and Y directions.
3) maxSize - the maximal size of the window - including its
size when it is expanded - from the following example
we need maxSize.X = 200, maxSize.Y = 150 - To avoid the expansion
being out of bound.
Non expanded window:
+------------------------------+ -
¦ Window Name [X]¦ ?
+------------------------------¦ ¦
¦ +-----------------+ ¦ ¦ 100
¦ Text1: ¦ ¦ ¦ ¦
¦ +-----------------+ ¦ ¦
¦ [?] ¦ ?
+------------------------------+ -
¦?----------------------------?¦
200
Expanded window:
+------------------------------+ -
¦ Window Name [X]¦ ?
+------------------------------¦ ¦
¦ +-----------------+ ¦ ¦
¦ Text1: ¦ ¦ ¦ ¦
¦ +-----------------+ ¦ ¦ 150
¦ [?] ¦ ¦
¦ +-----------------+ ¦ ¦
¦ Text2: ¦ ¦ ¦ ¦
¦ +-----------------+ ¦ ?
+------------------------------+ -
¦?----------------------------?¦
200
4) margin - The distance the window should be from the screen
work-area - Example:
+-------------------------------------------------------------+ -
¦ ¦ ? Margin
¦ ¦ -
¦ ¦
¦ ¦
¦ ¦
¦ +------------------------------+ ¦
¦ ¦ Window Name [X]¦ ¦
¦ +------------------------------¦ ¦
¦ ¦ +-----------------+ ¦ ¦
¦ ¦ Text1: ¦ ¦ ¦ ¦
¦ ¦ +-----------------+ ¦ ¦
¦ ¦ [?] ¦ ¦
¦ ¦ +-----------------+ ¦ ¦
¦ ¦ Text2: ¦ ¦ ¦ ¦
¦ ¦ +-----------------+ ¦ ¦
¦ +------------------------------+ ¦ -
¦ ¦ ? Margin
+-------------------------------------------------------------¦ -
¦[start] [?][?][?][?] ¦en¦ 12:00 ¦
+-------------------------------------------------------------+
¦?-?¦ ¦?-?¦
Margin Margin
* Note that this simple algorithm will always want to leave the cursor
out of the window, therefor the window will jumps to its left:
+---------------------------------+ +---------------------------------+
¦ ?-+--------------+ ¦ +--------------+?- ¦
¦ ¦ Window [X]¦ ¦ ¦ Window [X]¦ ¦
¦ +--------------¦ ¦ +--------------¦ ¦
¦ ¦ +---+ ¦ ¦ ¦ +---+ ¦ ¦
¦ ¦ Val: ¦ ¦ ¦ -> ¦ ¦ Val: ¦ ¦ ¦ ¦
¦ ¦ +---+ ¦ ¦ ¦ +---+ ¦ ¦
¦ +--------------+ ¦ +--------------+ ¦
¦ ¦ ¦ ¦
+---------------------------------¦ +---------------------------------¦
¦[start] [?][?][?] ¦en¦ 12:00 ¦ ¦[start] [?][?][?] ¦en¦ 12:00 ¦
+---------------------------------+ +---------------------------------+
If this is not a requirement, you can add a parameter to just use
the margin:
+---------------------------------+ +---------------------------------+
¦ ?-+--------------+ ¦ +-?------------+ ¦
¦ ¦ Window [X]¦ ¦ ¦ Window [X]¦ ¦
¦ +--------------¦ ¦ +--------------¦ ¦
¦ ¦ +---+ ¦ ¦ ¦ +---+ ¦ ¦
¦ ¦ Val: ¦ ¦ ¦ -> ¦ ¦ Val: ¦ ¦ ¦ ¦
¦ ¦ +---+ ¦ ¦ ¦ +---+ ¦ ¦
¦ +--------------+ ¦ +--------------+ ¦
¦ ¦ ¦ ¦
+---------------------------------¦ +---------------------------------¦
¦[start] [?][?][?] ¦en¦ 12:00 ¦ ¦[start] [?][?][?] ¦en¦ 12:00 ¦
+---------------------------------+ +---------------------------------+
* Supports also the following scenarios:
1) Screen over screen:
+-----------------+
¦ ¦
¦ ¦
¦ ¦
¦ ¦
+-----------------+
+-------------------+
¦ ¦
¦ ?- ¦
¦ ¦
¦ ¦
¦ ¦
+-------------------+
---------
2) Window bigger than screen hight or width
+---------------------------------+ +---------------------------------+
¦ ¦ ¦ +--------------+ ¦
¦ ¦ ¦ ¦ Window [X]¦ ¦
¦ ?-+------------¦-+ ¦ +--------------¦ ?- ¦
¦ ¦ Window [¦]¦ ¦ ¦ +---+ ¦ ¦
¦ +------------¦-¦ -> ¦ ¦ Val: ¦ ¦ ¦ ¦
¦ ¦ +---+¦ ¦ ¦ ¦ +---+ ¦ ¦
¦ ¦ Val: ¦ ¦¦ ¦ ¦ ¦ +---+ ¦ ¦
¦ ¦ +---+¦ ¦ ¦ ¦ Val: ¦ ¦ ¦ ¦
+---------------------------------¦ ¦ +---------------------------------¦
¦[start] [?][?][?] ¦en¦ 12:00 ¦ ¦ ¦[start] [?][?][?] ¦en¦ 12:00 ¦
+---------------------------------+ ¦ +---------------------------------+
¦ +---+ ¦ ¦ +---+ ¦
¦ Val: ¦ ¦ ¦ +--------------+
¦ +---+ ¦
+--------------+
+---------------------------------+ +---------------------------------+
¦ ¦ ¦ ¦
¦ ¦ ¦ +-------------------------------¦---+
¦ ?-+--------------------------¦--------+ ¦ ¦ W?-dow ¦[X]¦
¦ ¦ Window ¦ [X]¦ ¦ +-------------------------------¦---¦
¦ +--------------------------¦--------¦ ¦ ¦ +---+ +---+ +-¦-+ ¦
¦ ¦ +---+ +---+ ¦ +---+ ¦ -> ¦ ¦ Val: ¦ ¦ Val: ¦ ¦ Val: ¦ ¦ ¦ ¦
¦ ¦ Val: ¦ ¦ Val: ¦ ¦ Va¦: ¦ ¦ ¦ ¦ ¦ +---+ +---+ +-¦-+ ¦
¦ ¦ +---+ +---+ ¦ +---+ ¦ ¦ +-------------------------------¦---+
+---------------------------------¦--------+ +---------------------------------¦
¦[start] [?][?][?] ¦en¦ 12:00 ¦ ¦[start] [?][?][?] ¦en¦ 12:00 ¦
+---------------------------------+ +---------------------------------+
<remark><code>...</code></remark>
If like me you have an array with dates formatted like YYYY[-MM[-DD]]
where you'd like to order more specific dates before less specific ones, I came up with this handy function:
function sortByDateSpecificity(a, b) {
const aLength = a.date.length
const bLength = b.date.length
const aDate = a.date + (aLength < 10 ? '-12-31'.slice(-10 + aLength) : '')
const bDate = b.date + (bLength < 10 ? '-12-31'.slice(-10 + bLength) : '')
return new Date(aDate) - new Date(bDate)
}
To include native libraries you need:
To create jar file, use the following snippet:
task nativeLibsToJar(type: Zip, description: 'create a jar archive of the native libs') {
destinationDir file("$buildDir/native-libs")
baseName 'native-libs'
extension 'jar'
from fileTree(dir: 'libs', include: '**/*.so')
into 'lib/'
}
tasks.withType(Compile) {
compileTask -> compileTask.dependsOn(nativeLibsToJar)
}
To include resulting file, paste the following line into "dependencies" section in "build.gradle" file:
compile fileTree(dir: "$buildDir/native-libs", include: 'native-libs.jar')
bash has a builtin
pushd SOME_PATH
run_stuff
...
...
popd
In addition to the accepted answer, if you are using Android Studio you can
Android Device Monitor
,Devices
tab on the left,File Explorer
tab on the right,Pull a file from the device
button to save it to your local file systemOne of my concerns with phpMyAdmin was that by default, all MySQL users can access the db. If DB's root password is compromised, someone can wreck havoc on the db. I wanted to find a way to avoid that by restricting which MySQL user can login to phpMyAdmin.
I have found using AllowDeny configuration in PhpMyAdmin to be very useful. http://wiki.phpmyadmin.net/pma/Config#AllowDeny_.28rules.29
AllowDeny lets you configure access to phpMyAdmin in a similar way to Apache. If you set the 'order' to explicit, it will only grant access to users defined in 'rules' section. In the rules, section you restrict MySql users who can access use the phpMyAdmin.
$cfg['Servers'][$i]['AllowDeny']['order'] = 'explicit'
$cfg['Servers'][$i]['AllowDeny']['rules'] = array('pma-user from all')
Now you have limited access to the user named pma-user in MySQL, you can grant limited privilege to that user.
grant select on db_name.some_table to 'pma-user'@'app-server'
Simply
app.use means “Run this on ALL requests”
app.get means “Run this on a GET request, for the given URL”
In python, bool(sequence)
is False
if the sequence is empty. Since strings are sequences, this will work:
cookie = ''
if cookie:
print "Don't see this"
else:
print "You'll see this"
A simpler way is:
$('head').append('<script type="text/javascript" src="your.js"></script>');
You can also use this form to load css.
$('#foo > div').size()
There is a good stackoverflow answer here by Mark Rajcok:
AngularJS directive controllers requiring parent directive controllers?
with a link to this very clear jsFiddle: http://jsfiddle.net/mrajcok/StXFK/
<div ng-controller="MyCtrl">
<div screen>
<div component>
<div widget>
<button ng-click="widgetIt()">Woo Hoo</button>
</div>
</div>
</div>
</div>
JavaScript
var myApp = angular.module('myApp',[])
.directive('screen', function() {
return {
scope: true,
controller: function() {
this.doSomethingScreeny = function() {
alert("screeny!");
}
}
}
})
.directive('component', function() {
return {
scope: true,
require: '^screen',
controller: function($scope) {
this.componentFunction = function() {
$scope.screenCtrl.doSomethingScreeny();
}
},
link: function(scope, element, attrs, screenCtrl) {
scope.screenCtrl = screenCtrl
}
}
})
.directive('widget', function() {
return {
scope: true,
require: "^component",
link: function(scope, element, attrs, componentCtrl) {
scope.widgetIt = function() {
componentCtrl.componentFunction();
};
}
}
})
//myApp.directive('myDirective', function() {});
//myApp.factory('myService', function() {});
function MyCtrl($scope) {
$scope.name = 'Superhero';
}
Old post but as you said "why is it not using the correct certificate" I would like to offer an way to find out which SSL certificate is used for SMTP (see here) which required openssl:
openssl s_client -connect exchange01.int.contoso.com:25 -starttls smtp
This will outline the used SSL certificate for the SMTP service. Based on what you see here you can replace the wrong certificate (like you already did) with a correct one (or trust the certificate manually).
-- Outdated -- use distribute, not setuptools as described here. --
-- Outdated #2 -- use setuptools as distribute is deprecated.
As you mentioned pip doesn't include an independent installer, but you can install it with its predecessor easy_install.
So:
C:\Python2x\
folder (don't copy the whole folder into it, just the content), because python command doesn't work outside C:\Python2x
folder and then run: python setup.py install
C:\Python2x\Scripts
to the pathYou are done.
Now you can use pip install package
to easily install packages as in Linux :)
time.h
defines a strftime
function which can give you a textual representation of a time_t
using something like:
#include <stdio.h>
#include <time.h>
int main (void) {
char buff[100];
time_t now = time (0);
strftime (buff, 100, "%Y-%m-%d %H:%M:%S.000", localtime (&now));
printf ("%s\n", buff);
return 0;
}
but that won't give you sub-second resolution since that's not available from a time_t
. It outputs:
2010-09-09 10:08:34.000
If you're really constrained by the specs and do not want the space between the day and hour, just remove it from the format string.
Use HttpWebRequest.BeginGetResponse()
HttpWebRequest webRequest;
void StartWebRequest()
{
webRequest.BeginGetResponse(new AsyncCallback(FinishWebRequest), null);
}
void FinishWebRequest(IAsyncResult result)
{
webRequest.EndGetResponse(result);
}
The callback function is called when the asynchronous operation is complete. You need to at least call EndGetResponse()
from this function.
Just right-click on the element you want the xpath for and you will see a menu item to copy it. This may not have existed when the OP made his post but it's certainly there now.
The following command could help you to filter the lines which include the substring "foo".
cat file | grep -v "foo"
Like this: .
The .
means any character except newline (which sometimes is but often isn't included, check your regex flavour).
You can rewrite your expression as ^.{1,35}$
, which should match any line of length 1-35.
I had this issue after upgrading to .NET Framework 4.7.2. I found out that Nuget package for System.Net.Http is no longer recommended. Here are workarounds:
You got your answer, but why iterate over the tr when you can go straight for the inputs? That way you can store them easier into an array and it reduce the number of CSS queries. Depends what you want to do of course, but for collecting data it is a more flexible approach.
var array = [];
$("tr.item input").each(function() {
array.push({
name: $(this).attr('class'),
value: $(this).val()
});
});
console.log(array);?
You can use the split()
function to break input on the basis of line break.
yourString.split("\n")
Just set
webView.mediaPlaybackRequiresUserAction = NO;
The autoplay works for me on iOS.
Firstly, understand that DateTime
objects aren't formatted. They just store the Year, Month, Day, Hour, Minute, Second, etc as a numeric value and the formatting occurs when you want to represent it as a string somehow. You can compare DateTime
objects without formatting them.
To compare an input date with DateTime.Now
, you need to first parse the input into a date and then compare just the Year/Month/Day portions:
DateTime inputDate;
if(!DateTime.TryParse(inputString, out inputDate))
throw new ArgumentException("Input string not in the correct format.");
if(inputDate.Date == DateTime.Now.Date) {
// Same date!
}
If you want to modify the line width flexibly you can use "scale_size_manual," this is the same procedure for picking the color, fill, alpha, etc.
library(ggplot2)
library(tidyr)
x = seq(0,10,0.05)
df <- data.frame(A = 2 * x + 10,
B = x**2 - x*6,
C = 30 - x**1.5,
X = x)
df = gather(df,A,B,C,key="Model",value="Y")
ggplot( df, aes (x=X, y=Y, size=Model, colour=Model ))+
geom_line()+
scale_size_manual( values = c(4,2,1) ) +
scale_color_manual( values = c("orange","red","navy") )
I came up with this method because while on the CLI, it's not possible to use the methods provided in the other answers here and it had always bugged me.
Basic Example
FOR /L %L IN (0,0,1) DO @(
ECHO. Counter always 0, See "%L" = "0" - Waiting a split second&ping -n 1 127.0.0.1>NUL )
This is truly an infinite loop!
This is useful for monitoring something in a CMD
window, and allows you to use CTRL
+C
to break it when you're done.
Want to Have a counter?
Either use SET /A
OR You can modify the FOR /L
Loop to do the counting and still be infinite (Note, BOTH of these methods have a 32bit integer overflow)
SET /A
Method:
FOR /L %L IN (0,0,1) DO @(
SET /A "#+=1"&ECHO. L Still equals 0, See "%L = 0"! - Waiting a split second &ping -n 1 127.0.0.1>NUL )
Native FOR /L
Counter:
FOR /L %L IN (-2147483648,1,2147483648) DO @(
ECHO.Current value of L: %L - Waiting a split second &ping -n 1 127.0.0.1>NUL )
Counting Sets of 4294967295 and Showing Current Value of L:
FOR /L %L IN (1,1,2147483648) DO @(
(
IF %L EQU 0 SET /A "#+=1">NUL
)&SET /A "#+=0"&ECHO. Sets of 4294967295 - Current value of L: %L - Waiting a split second &ping -n 1 127.0.0.1>NUL )
However, what if:
For this, I determined how to use a couple methods to break the FOR
Loop prematurely effectively turning it into a "DO WHILE
" or "DO UNTIL
" Loop, which is otherwise sorely lacking in CMD.
NOTE: Most of the time a loop will continue to iterate past the condition you checked for, often this is a wanted behavior, but not in our case.
DO WHILE
" / "DO UNTIL
" LoopUPDATE: Due to wanting to use this code in CMD Scripts (and have them persist!) as well as CLI, and on thinking if there might be a "more Correct" method to achieve this I recommend using the New method!
New Method (Can be used inside CMD Scripts without exiting the script):
FOR /F %%A IN ('
CMD /C "FOR /L %%L IN (0,1,2147483648) DO @( ECHO.%%L & IF /I %%L EQU 10 ( exit /b ) )"
') DO @(
ECHO %%~A
)
At CLI:
FOR /F %A IN ('
CMD /C "FOR /L %L IN (0,1,2147483648) DO @( ECHO.%L & IF /I %L EQU 10 ( exit /b ) )"
') DO @(
ECHO %~A
)
Original Method (Will work on CLI just fine, but will kill a script.)
FOR /L %L IN (0,1,2147483648) DO @(
ECHO.Current value of L: %L - Waiting a split second &ping -n 1 127.0.0.1>NUL&(
IF /I %L EQU 10 (
ECHO.Breaking the Loop! Because We have matched the condition!&DIR >&0
)
)
) 2>NUL
Through chance I had hit upon some ways to exit loops prematurely that did not close the CMD prompt when trying to do other things which gave me this Idea.
While ECHO.>&3 >NUL
had worked for me in some scenarios, I have played with this off and on over the years and found that DIR >&0 >NUL
was much more consistent.
I am re-writing this answer from here forward to use that method instead as I recently found the old note to myself to use this method instead.
DIR >&0 >NUL
The >NUL is optional, I just prefer not to have it output the error.
I prefer to match inLine when possible, as you can see in this sanitized example of a Command I use to monitor LUN Migrations on our VNX.
for /l %L IN (0,0,1) DO @(
ECHO.& ECHO.===========================================& (
[VNX CMD] | FINDSTR /R /C:"Source LU Name" /C:"State:" /C:"Time " || DIR >&0 >NUL
) & Ping -n 10 1.1.1.1 -w 1000>NUL )
Also, I have another method I found in that note to myself which I just re-tested to confirm works just as well at the CLI as the other method.
Apparently, when I first posted here I posted an older iteration I was playing with instead of the two newer ones which work better:
In this method, we use EXIT /B
to exit the For Loop, but we don't want to exit the CLI so we wrap it in a CMD session:
FOR /F %A IN ('CMD /C "FOR /L %L IN (0,1,10000000) DO @( ECHO.%L & IF /I %L EQU 10 ( exit /b ) )" ') DO @(ECHO %~A)
Because the loop itself happens in the CMD session, we can use EXIT /B to exit the iteration of the loop without losing our CMD Session, and without waiting for the loop to complete, much the same as with the other method.
I would go so far as to say that this method is likely the "intended" method for the sort of scenario where you want to break a for loop at the CLI, as using CMD session is also the only way to get Delayed expansion working at the CLI for your loops, and the behavior and such behavior is clearly an intended workflow to leave a CMD session.
IE: Microsoft clearly made an intentional effort to have CMD Exit /B For loops behave this way, while the "Intended" way of doing this, as my other method, relies on having accidentally created just the right error to kick you out of the loop without letting the loop finish processing, which I only happenstantially discovered, and seems to only reliably work when using the DIR command which is fairly strange.
So that said, I think it's probably a better practice to use Method 2:
FOR /F %A IN ('CMD /C "FOR /L %L IN (0,1,10000000) DO @( ECHO.%L & IF /I %L EQU 10 ( exit /b ) )" ') DO @(ECHO %~A)
Although I suspect Method 1 is going to be slightly faster:
FOR /L %L IN (0,1,10000000) DO @( ECHO.%L & IF /I %L EQU 10 ( DIR >&) >NUL ) )
And in either case, both should allow DO-While loops as you need for your purposes.
$scope.rtGo = function(){
$window.sessionStorage.removeItem('message');
$window.sessionStorage.removeItem('status');
}
I found a faster way to solve the problem, at least on realistically large datasets using:
df.set_index(KEY).to_dict()[VALUE]
Proof on 50,000 rows:
df = pd.DataFrame(np.random.randint(32, 120, 100000).reshape(50000,2),columns=list('AB'))
df['A'] = df['A'].apply(chr)
%timeit dict(zip(df.A,df.B))
%timeit pd.Series(df.A.values,index=df.B).to_dict()
%timeit df.set_index('A').to_dict()['B']
Output:
100 loops, best of 3: 7.04 ms per loop # WouterOvermeire
100 loops, best of 3: 9.83 ms per loop # Jeff
100 loops, best of 3: 4.28 ms per loop # Kikohs (me)
PHP has a function called get_browser() that will return an object (or array if you so choose) with details about the users' browser and what it can do.
A simple look through gave me this code:
$browser = get_browser( null, true );
if( $browser['name'] == "Firefox" )
if( $browser['majorversion'] == 4 )
echo "You're using Firefox version 4!";
This is not a surefire way (as it reads from HTTP_USER_AGENT, which can be spoofed, and will sometimes be analyzed wrong by php), but it's the easiest one that you can find as far as I know.
This solved my issue. It was 2.10 in my POM, just updated to 2.19.1 and refresh the POM
Add to your pom :
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
</plugin>
</plugins>
In your error code he didn't find surefire plugin
so add it
You're almost all the way there.
Your first few lines, comparing the last name, are right on track. The compareTo() method on string will return a negative number for a string in alphabetical order before, and a positive number for one in alphabetical order after.
Now, you just need to do the same thing for your first name and score.
In other words, if Last Name 1 == Last Name 2, go on a check your first name next. If the first name is the same, check your score next. (Think about nesting your if/then blocks.)
Edit: I've just seen the edit to clarify that the original question was for the reduction of iterations / code and that's all well and good as an exercise, but in real-world situations you're going to want the fastest implementation, regardless of how cool the underlying LINQ looks.
Here's my Utils method for iterating through the loaded types. It handles regular classes as well as interfaces, and the excludeSystemTypes option speeds things up hugely if you are looking for implementations in your own / third-party codebase.
public static List<Type> GetSubclassesOf(this Type type, bool excludeSystemTypes) {
List<Type> list = new List<Type>();
IEnumerator enumerator = Thread.GetDomain().GetAssemblies().GetEnumerator();
while (enumerator.MoveNext()) {
try {
Type[] types = ((Assembly) enumerator.Current).GetTypes();
if (!excludeSystemTypes || (excludeSystemTypes && !((Assembly) enumerator.Current).FullName.StartsWith("System."))) {
IEnumerator enumerator2 = types.GetEnumerator();
while (enumerator2.MoveNext()) {
Type current = (Type) enumerator2.Current;
if (type.IsInterface) {
if (current.GetInterface(type.FullName) != null) {
list.Add(current);
}
} else if (current.IsSubclassOf(type)) {
list.Add(current);
}
}
}
} catch {
}
}
return list;
}
It's not pretty, I'll admit.
int numberOfRecords = 0;
numberOfRecords = dtFoo.Select().Length;
MessageBox.Show(numberOfRecords.ToString());
document.getElementById('header').style.width = '50%';
If you are using Firebug or the Chrome/Safari Developer tools, execute the above in the console, and you'll see the Stack Overflow header shrink by 50%.
String s;
Format formatter;
Date date = new Date();
// 2012-12-01
formatter = new SimpleDateFormat("yyyy-MM-dd");
s = formatter.format(date);
System.out.println(s);
I had the same problem too. Then i realized that in the MainPageServlet the urlPatterns parameter in @WebServlet annotation contained "/", because i wanted to forward to the MainPage if the user entered the section www.site.com/ . When i tried to open the css file from the browser, the url was www.site.com/css/desktop.css, but the page content was THE PAGE MainPage.jsp. So, i removed the "/" urlPattern and now i can use CSS files in my jsp file using one of the most common solutions (${pageContext.request.contextPath}/css/desktop.css
).
Make sure your servlet doesn't contain the "/" urlPattern.
I hope this worked for u too,
- Axel Montini
Don't over complicate.
document.addEventListener('keydown', logKey);
function logKey(e) {
if (`${e.code}` == "ArrowRight") {
//code here
}
if (`${e.code}` == "ArrowLeft") {
//code here
}
if (`${e.code}` == "ArrowDown") {
//code here
}
if (`${e.code}` == "ArrowUp") {
//code here
}
}
For anyone that finds this question looking for how to access custom properties in ASP.NET Core 2.1 - it's much easier: You'll have a UserManager, e.g. in _LoginPartial.cshtml, and then you can simply do (assuming "ScreenName" is a property that you have added to your own AppUser which inherits from IdentityUser):
@using Microsoft.AspNetCore.Identity
@using <namespaceWhereYouHaveYourAppUser>
@inject SignInManager<AppUser> SignInManager
@inject UserManager<AppUser> UserManager
@if (SignInManager.IsSignedIn(User)) {
<form asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Action("Index", "Home", new { area = "" })"
method="post" id="logoutForm"
class="form-inline my-2 my-lg-0">
<ul class="nav navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">
Hello @((await UserManager.GetUserAsync(User)).ScreenName)!
<!-- Original code, shows Email-Address: @UserManager.GetUserName(User)! -->
</a>
</li>
<li class="nav-item">
<button type="submit" class="btn btn-link nav-item navbar-link nav-link">Logout</button>
</li>
</ul>
</form>
} else {
<ul class="navbar-nav ml-auto">
<li class="nav-item"><a class="nav-link" asp-area="Identity" asp-page="/Account/Register">Register</a></li>
<li class="nav-item"><a class="nav-link" asp-area="Identity" asp-page="/Account/Login">Login</a></li>
</ul>
}
Create your shell script as login.sh
in your $HOME folder.
Paste the following one-line script into Script Editor:
do shell script "$HOME/login.sh"
Then save it as an application.
Finally add the application to your login items.
If you want to make the script output visual, you can swap step 2 for this:
tell application "Terminal"
activate
do script "$HOME/login.sh"
end tell
If multiple commands are needed something like this can be used:
tell application "Terminal"
activate
do script "cd $HOME"
do script "./login.sh" in window 1
end tell
If you want to go to the previous page without knowing the url, you could use the new History api.
history.back(); //Go to the previous page
history.forward(); //Go to the next page in the stack
history.go(index); //Where index could be 1, -1, 56, etc.
But you can't manipulate the content of the history stack on browser that doesn't support the HTML5 History API
For more information see the doc
Perhaps a simple way to remember: add a dot after the numerator (or denominator)
16 ** (1. / 2) # 4
289 ** (1. / 2) # 17
27 ** (1. / 3) # 3
You can use the REG command. From http://www.ss64.com/nt/reg.html:
Syntax:
REG QUERY [ROOT\]RegKey /v ValueName [/s]
REG QUERY [ROOT\]RegKey /ve --This returns the (default) value
REG ADD [ROOT\]RegKey /v ValueName [/t DataType] [/S Separator] [/d Data] [/f]
REG ADD [ROOT\]RegKey /ve [/d Data] [/f] -- Set the (default) value
REG DELETE [ROOT\]RegKey /v ValueName [/f]
REG DELETE [ROOT\]RegKey /ve [/f] -- Remove the (default) value
REG DELETE [ROOT\]RegKey /va [/f] -- Delete all values under this key
REG COPY [\\SourceMachine\][ROOT\]RegKey [\\DestMachine\][ROOT\]RegKey
REG EXPORT [ROOT\]RegKey FileName.reg
REG IMPORT FileName.reg
REG SAVE [ROOT\]RegKey FileName.hiv
REG RESTORE \\MachineName\[ROOT]\KeyName FileName.hiv
REG LOAD FileName KeyName
REG UNLOAD KeyName
REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/v ValueName] [Output] [/s]
REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/ve] [Output] [/s]
Key:
ROOT :
HKLM = HKey_Local_machine (default)
HKCU = HKey_current_user
HKU = HKey_users
HKCR = HKey_classes_root
ValueName : The value, under the selected RegKey, to edit.
(default is all keys and values)
/d Data : The actual data to store as a "String", integer etc
/f : Force an update without prompting "Value exists, overwrite Y/N"
\\Machine : Name of remote machine - omitting defaults to current machine.
Only HKLM and HKU are available on remote machines.
FileName : The filename to save or restore a registry hive.
KeyName : A key name to load a hive file into. (Creating a new key)
/S : Query all subkeys and values.
/S Separator : Character to use as the separator in REG_MULTI_SZ values
the default is "\0"
/t DataType : REG_SZ (default) | REG_DWORD | REG_EXPAND_SZ | REG_MULTI_SZ
Output : /od (only differences) /os (only matches) /oa (all) /on (no output)
--user
installs in site.USER_SITE
.
For my case, it was /Users/.../Library/Python/2.7/bin
. So I have added that to my PATH (in ~/.bash_profile
file):
export PATH=$PATH:/Users/.../Library/Python/2.7/bin
Interestingly, this solution can break, but a workaround:
Looking for my database called KeyWorks.accdb
which must exist:
Run this:
Dim strDataPath As String = GetSetting("KeyWorks", "dataPath", "01", "") 'get from registry
If Not strDataPath.Contains("KeyWorks.accdb") Then....etc.
If my database is named KeyWorksBB.accdb
, the If
statement will find this acceptable and exit the If
statement because it did indeed find KeyWorks
and accdb
.
If I surround the If
statement qualifier with single quotes like 'KeyWorks.accdb'
, it now looks for all the consecutive characters in order and would enter the If
block because it did not match.
Another possible solution with JS
function onSelect(e) {
if (e.files.length > 5) {
alert("Only 5 files accepted.");
e.preventDefault();
}
}
If you are using Python2.6 or newer, it's convenient to use socket.create_connection
sock = socket.create_connection(address, timeout=10)
sock.settimeout(None)
fileobj = sock.makefile('rb', 0)
Nevermind, the answer is raw triple-quoted strings:
r"""what"ever"""
Do you mean that you've got code like
if(map.containsKey(key)) doSomethingWith(map.get(key))
all over the place ? Then you should simply check whether map.get(key)
returned null and that's it.
By the way, HashMap doesn't throw exceptions for missing keys, it returns null instead. The only case where containsKey
is needed is when you're storing null values, to distinguish between a null value and a missing value, but this is usually considered bad practice.
I think something like:
function ReplaceContentInContainer(klass,content) {
var elems = document.getElementsByTagName('*');
for (i in elems){
if(elems[i].getAttribute('class') == klass || elems[i].getAttribute('className') == klass){
elems[i].innerHTML = content;
}
}
}
would work
This happened for me when my ajax was replacing contents on the page and ending up with two elements the same class for the dialog which meant when my line to close the dialog executed based on the CSS class selector, it found two elements not one and the second one had never been initialised.
$(".dialogClass").dialog("close"); //This line was expecting to find one element but found two where the second had not been initialised.
For anyone on ASP.NET MVC this occured because my controller action was returning a full view including the shared layout page which had the element when it should have been returning a partial view since the javascript was replacing only the main content area.
I had the same message after a system restore with the eclipse folder (V. 3/2020) being located on a second drive (that was NOT restored at the same time, I use it for large files mainly).
Restoring the faulty installations C:\Users<user>.p2 folder to the new installation (referenced in eclipse.ini of the eclipse folder) worked.
Personally, I like setting the options directly with an assignment statement as it is easy to find via tab completion thanks to iPython. I find it hard to remember what the exact option names are, so this method works for me.
For instance, all I have to remember is that it begins with pd.options
pd.options.<TAB>
Most of the options are available under display
pd.options.display.<TAB>
From here, I usually output what the current value is like this:
pd.options.display.max_rows
60
I then set it to what I want it to be:
pd.options.display.max_rows = 100
Also, you should be aware of the context manager for options, which temporarily sets the options inside of a block of code. Pass in the option name as a string followed by the value you want it to be. You may pass in any number of options in the same line:
with pd.option_context('display.max_rows', 100, 'display.max_columns', 10):
some pandas stuff
You can also reset an option back to its default value like this:
pd.reset_option('display.max_rows')
And reset all of them back:
pd.reset_option('all')
It is still perfectly good to set options via pd.set_option
. I just find using the attributes directly is easier and there is less need for get_option
and set_option
.
To give more flexibility, e.g. select directory/file by name use:
import os
import zipfile
def zipall(ob, path, rel=""):
basename = os.path.basename(path)
if os.path.isdir(path):
if rel == "":
rel = basename
ob.write(path, os.path.join(rel))
for root, dirs, files in os.walk(path):
for d in dirs:
zipall(ob, os.path.join(root, d), os.path.join(rel, d))
for f in files:
ob.write(os.path.join(root, f), os.path.join(rel, f))
break
elif os.path.isfile(path):
ob.write(path, os.path.join(rel, basename))
else:
pass
For a file tree:
.
+-- dir
¦ +-- dir2
¦ ¦ +-- file2.txt
¦ +-- dir3
¦ ¦ +-- file3.txt
¦ +-- file.txt
+-- dir4
¦ +-- dir5
¦ +-- file4.txt
+-- listdir.zip
+-- main.py
+-- root.txt
+-- selective.zip
You can e.g. select only dir4
and root.txt
:
cwd = os.getcwd()
files = [os.path.join(cwd, f) for f in ['dir4', 'root.txt']]
with zipfile.ZipFile("selective.zip", "w" ) as myzip:
for f in files:
zipall(myzip, f)
Or just listdir
in script invocation directory and add everything from there:
with zipfile.ZipFile("listdir.zip", "w" ) as myzip:
for f in os.listdir():
if f == "listdir.zip":
# Creating a listdir.zip in the same directory
# will include listdir.zip inside itself, beware of this
continue
zipall(myzip, f)
Try to follow the advice you see on the screen, and first reset your master's HEAD to the commit it expects.
git update-ref refs/heads/master b918ac16a33881ce00799bea63d9c23bf7022d67
Then, abort the rebase again.
Move the queue to self instead of as an argument to your functions package
and send
First of all, don't create HTML elements by string concatenation. Use DOM manipulation. It's faster, cleaner, and less error-prone. This alone solves one of your problems. Then, just let it accept any array as an argument:
var options = [
set0 = ['Option 1','Option 2'],
set1 = ['First Option','Second Option','Third Option']
];
function makeUL(array) {
// Create the list element:
var list = document.createElement('ul');
for (var i = 0; i < array.length; i++) {
// Create the list item:
var item = document.createElement('li');
// Set its contents:
item.appendChild(document.createTextNode(array[i]));
// Add it to the list:
list.appendChild(item);
}
// Finally, return the constructed list:
return list;
}
// Add the contents of options[0] to #foo:
document.getElementById('foo').appendChild(makeUL(options[0]));
Here's a demo. You might also want to note that set0
and set1
are leaking into the global scope; if you meant to create a sort of associative array, you should use an object:
var options = {
set0: ['Option 1', 'Option 2'],
set1: ['First Option', 'Second Option', 'Third Option']
};
And access them like so:
makeUL(options.set0);
I save files in .XLSB format to cut size. The XLSB also allows for VBA and macros to stay with the file. I've seen 50 meg files down to less than 10 with the Binary formatting.