recyclerview No adapter attached skipping layout

Question

Just implemented RecyclerView in my code  replacing ListView   Everything works fine  The data is displayed   But error messages are being logged   15 25 53 476 E RecyclerView  No adapter attached  skipping layout  15 25 53 655 E RecyclerView  No adapter attached  skipping layout   for the following code   ArtistArrayAdapter adapter   new ArtistArrayAdapter this  artists   recyclerView    RecyclerView  findViewById R id cardList   recyclerView setHasFixedSize true   recyclerView setAdapter adapter   recyclerView setLayoutManager new LinearLayoutManager this      As you can see I have attached an adapter for RecyclerView  So why do I keep getting this error   I have read other questions related to the same problem but none of them help

User · Answer

My problem was my recycler view looked like this

        <android.support.v7.widget.RecyclerView
        android:id="@+id/chatview"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">
    </android.support.v7.widget.RecyclerView>

When it should have looked like this

       <android.support.v7.widget.RecyclerView
        android:id="@+id/chatview"
        android:layout_width="395dp"
        android:layout_height="525dp"
        android:layout_marginTop="52dp"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_editor_absoluteX="8dp"></android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>

User · Answer

First initialize the adapter  public void initializeComments        comments   new ArrayList lt  gt          comments myRecyclerView    RecyclerView  findViewById R id comments recycler       comments mLayoutManager   new LinearLayoutManager myContext       comments myRecyclerView setLayoutManager comments mLayoutManager        updateComments        getCommentsData        public void updateComments         comments mAdapter   new CommentsAdapter comments  myContext       comments myRecyclerView setAdapter comments mAdapter       When ever there is a change in the dataset set  just call the updateComments method

User · Answer

In my case it happened cause i embedded a RecyclerView in a LinearLayout   I previously had a layout file only containing one root RecyclerView as follows   lt  xml version  1 0  encoding  utf-8   gt   lt android support v7 widget RecyclerView     android id    id list      android layout width  match parent      android layout height  match parent      tools listitem   layout fragment products       android name  Products ProductsFragment      app layoutManager  LinearLayoutManager      tools context   Products ProductsFragment       xmlns android  http   schemas android com apk res android      xmlns app  http   schemas android com apk res-auto      xmlns tools  http   schemas android com tools   gt    I believe the problem is within the 3 lines separated  Anyway  I think its a simple problem  ill be working on it tomorrow  thought i should write what i found before forgetting about this thread

User · Answer

This is really a simple error you are getting  there in no need of doing any codes in this  This error occurs due to the wrong layout file used by the activity   By IDE i automatically created a layout v21 of a layout which became a default layout of the activity  all codes I did in the old layout file and new one was only having few xml codes  which led to that error   Solution  Copy all codes of old layout and paste in layout v 21

User · Answer

1  Create ViewHolder that does nothing        SampleHolder java public class SampleHolder extends RecyclerView ViewHolder       public SampleHolder View itemView            super itemView               2  Again create RecyclerView that does nothing        SampleRecycler java public class SampleRecycler extends RecyclerView Adapter lt SampleHolder gt         Override     public SampleHolder onCreateViewHolder ViewGroup parent  int viewType            return null              Override     public void onBindViewHolder SampleHolder holder  int position                 Override     public int getItemCount             return 0              3  Now when your real recycler is not ready just use the sample one like below   RecyclerView myRecycler    RecyclerView  findViewById R id recycler id   myRecycler setLayoutManager new LinearLayoutManager this    myRecycler setAdapter new SampleRecycler         This is not best solution though but it works  Hope this is helpful

User · Answer

This issue is because you are not adding any LayoutManager for your RecyclerView    Another reason is because you are calling this code in a NonUIThread  Make sure to call this call in the UIThread   The solution is only you have to add a LayoutManager for the RecyclerView before you setAdapter in the UI Thread   recyclerView setLayoutManager new LinearLayoutManager getContext

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I was getting the same two error messages until I fixed two things in my code     1  By default  when you implement methods in the RecyclerView Adapter it generates    Override public int getItemCount         return 0      Make sure you update your code so it says    Override public int getItemCount         return artists size        Obviously if you have zero items in your items then you will get zero things displayed on the screen    2  I was not doing this as shown in the top answer  CardView layout width  quot match parent quot  does not match parent RecyclerView width    correct LayoutInflater from parent getContext                 inflate R layout card listitem  parent  false      incorrect  what I had  LayoutInflater from parent getContext             inflate R layout card listitem null      3  EDIT  BONUS  Also make sure you set up your RecyclerView like this    lt android support v7 widget RecyclerView     android id    id RecyclerView      android layout width  match parent      android layout height  match parent        gt    NOT like this    lt view     android id    id RecyclerView      class  android support v7 widget RecyclerView      android layout width  match parent      android layout height  match parent    gt    I have seen some tutorials using the latter method  While it works I think it generates this error too

User · Answer

In Kotlin we had this weird illogical issue   This didn t work    mBinding serviceProviderCertificates apply               adapter   adapter             layoutManager    LinearLayoutManager activity              While this worked   mBinding serviceProviderCertificates adapter   adapter mBinding serviceProviderCertificates layoutManager   LinearLayoutManager activity    Once I get more after work hours  I will share more insights

User · Answer

Make sure you set the layout manager for your RecyclerView by     mRecyclerView setLayoutManager new LinearLayoutManager context      Instead of LinearLayoutManager  you can use other layout managers too

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ArtistArrayAdapter adapter   new ArtistArrayAdapter this  artists   recyclerView    RecyclerView  findViewById R id cardList   recyclerView setHasFixedSize true   recyclerView setLayoutManager new LinearLayoutManager this    recyclerView setAdapter adapter     Just replace above code with this and it should work  What you did wrong is you called setAdapter adapter  before calling layout manager

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I had the same problem and realized I was setting both the LayoutManager and adapter after retrieving the data from my source instead of setting the two in the onCreate method   salesAdapter   new SalesAdapter this ordersList           salesView setLayoutManager new LinearLayoutManager getApplicationContext              salesView setAdapter salesAdapter     Then notified the adapter on data change                    get the Orders                 Orders orders                  JSONArray ordersArray   jObj getJSONArray  orders                        for  int i   0  i  lt  ordersArray length     i                              JSONObject orderItem   ordersArray getJSONObject i                             populate the Order model                          orders   new Orders                                  orderItem getString  order id                                    orderItem getString  customer                                    orderItem getString  date added                                    orderItem getString  total                             ordersList add i orders                           salesAdapter notifyDataSetChanged

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For those who use the RecyclerView within a fragment and inflate it from other views  when inflating the whole fragment view  make sure that you bind the RecyclerView to its root view    I was connecting and doing everything for the adapter correctly  but I never did the binding   This answer by  Prateek Agarwal has it all for me  but here is more elaboration   Kotlin      override fun onCreateView inflater  LayoutInflater   container  ViewGroup   savedInstanceState  Bundle    View         val rootView    inflater  inflate R layout fragment layout  container  false      recyclerView   rootView  findViewById R id recycler view id         rest of my stuff     recyclerView  setHasFixedSize true      recyclerView  layoutManager   viewManager     recyclerView  adapter   viewAdapter        return the root view     return rootView     Java     Override public View onCreateView LayoutInflater inflater  ViewGroup container  Bundle savedInstanceState         View rootView  inflater inflate R layout fragment layout container false       recyclerview  rootView findViewById R id recycler view id       return rootView

User · Answer

It happens when you are not setting the adapter during the creation phase  call notifyDataSetChanged   when api response is getting Its Working   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity             magazineAdapter   new MagazineAdapter getContext    null  this            newClipRecyclerView setAdapter magazineAdapter           magazineAdapter notifyDataSetChanged            APICall       public void APICall         if Response isSuccessfull         mRecyclerView setAdapter mAdapter          Just move setting the adapter into onCreate with an empty data and when you have the data call   mAdapter notifyDataSetChanged

User · Answer

I have the same situation with you  display is ok  but error appear in the locat  That s my solution   1  Initialize the RecyclerView  amp  bind adapter ON CREATE    RecyclerView mRecycler    RecyclerView  this findViewById R id yourid   mRecycler setAdapter adapter      2  call notifyDataStateChanged when you get the data  adapter notifyDataStateChanged      In the recyclerView s source code  there is other thread to check the state of data   public RecyclerView Context context   Nullable AttributeSet attrs  int defStyle        super context  attrs  defStyle       this mObserver   new RecyclerView RecyclerViewDataObserver null       this mRecycler   new RecyclerView Recycler        this mUpdateChildViewsRunnable   new Runnable             public void run                 if RecyclerView this mFirstLayoutComplete                    if RecyclerView this mDataSetHasChangedAfterLayout                        TraceCompat beginSection  RV FullInvalidate                        RecyclerView this dispatchLayout                        TraceCompat endSection                      else if RecyclerView this mAdapterHelper hasPendingUpdates                          TraceCompat beginSection  RV PartialInvalidate                        RecyclerView this eatRequestLayout                        RecyclerView this mAdapterHelper preProcess                        if  RecyclerView this mLayoutRequestEaten                            RecyclerView this rebindUpdatedViewHolders                                               RecyclerView this resumeRequestLayout true                       TraceCompat endSection                                                        In the dispatchLayout    we can find there is the error in it   void dispatchLayout         if this mAdapter    null            Log e  RecyclerView    No adapter attached  skipping layout          else if this mLayout    null            Log e  RecyclerView    No layout manager attached  skipping layout          else

User · Answer

I have solved this error  You just need to add layout manager  and add the empty adapter   Like this code   myRecyclerView setLayoutManager      your layout manager           myRecyclerView setAdapter new RecyclerView Adapter                  Override             public RecyclerView ViewHolder onCreateViewHolder ViewGroup parent  int viewType                    return null                              Override             public void onBindViewHolder RecyclerView ViewHolder holder  int position                                 Override             public int getItemCount                     return 0                              other code s     and for change you can use if mrecyclerview getadapter    speacialadapter     replice your adapter

User · Answer

Check if you have missed to call  this method in your adapter      Override public int getItemCount         return list size

User · Answer

I had the same error I fixed it doing this if you are waiting for data like me using retrofit or something like that  Put before Oncreate  private ArtistArrayAdapter adapter  private RecyclerView recyclerView    Put them in your Oncreate   recyclerView    RecyclerView  findViewById R id cardList    recyclerView setHasFixedSize true    recyclerView setLayoutManager new LinearLayoutManager this     adapter   new ArtistArrayAdapter  artists   R layout list item  getApplicationContext      recyclerView setAdapter adapter     When you receive data put  adapter   new ArtistArrayAdapter  artists   R layout list item  getApplicationContext     recyclerView setAdapter adapter     Now go in your ArtistArrayAdapter class and do this what it will do is if your array is empty or is null it will make GetItemCount return 0 if not it will make it the size of artists array   Override public int getItemCount          int a        if artists    null  amp  amp   artists isEmpty               a   artists size              else            a   0              return a

User · Answer

Adding yet another answer since I came across this thread googling the error  I was trying to initialize a PreferenceFragmentCompat but I forgot to inflate the preference XML in onCreatePreferences like this   class SettingsFragment   PreferenceFragmentCompat         override fun onCreate savedInstanceState  Bundle             super onCreate savedInstanceState           val inflater   LayoutInflater from context          inflater inflate R layout fragment settings  null             override fun onCreatePreferences savedInstanceState  Bundle   rootKey  String                Missing this line here               setPreferencesFromResource R xml settings  rootKey            The error was a mystery until I realized that PreferenceFragmentCompat must be using a RecyclerView internally

User · Answer

In your RecyclerView adapter class  for example MyRecyclerViewAdapter  make a constructor with the following params   MyRecyclerViewAdapter Context context  List lt String gt  data        this mInflater   LayoutInflater from context       lt -- This is the line most people include me miss     this mData   data      mData is the data that you ll pass to the adapter  It is optional if you have no data to be passed  mInflater is the LayoutInflater object that you have created and you use in the OnCreateViewHolder function of the adapter   After this  you attach the adapter in the MainActivity or wherever you want to on the main UI thread properly like  MyRecyclerViewAdapter recyclerAdapter  OurDataStuff mData                 Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main              Like this           RecyclerView recyclerView   findViewById R id recyclerView           recyclerView setLayoutManager new LinearLayoutManager this            recyclerAdapter   new RecyclerAdapter this  mData     this  is the context  mData is the data you want to pass if you have any         recyclerView setAdapter recyclerAdapter

User · Answer

It happens when you are not setting the adapter during the creation phase    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity       mRecyclerView setLayoutManager new LinearLayoutManager this                public void onResume         super onResume        mRecyclerView setAdapter mAdapter                Just move setting the adapter into onCreate with an empty data and when you have the data call   mAdapter notifyDataSetChanged

User · Answer

I had this error  and I tried to fix for a while until I found the solution   I made a private method buildRecyclerView  and I called it twice  first on onCreateView and then after my callback  in which I fetch data from an API   This is my method buildRecyclerView in my Fragment   private void buildRecyclerView View v            mRecyclerView   v findViewById R id recycler view loan           mLayoutManager   new LinearLayoutManager getActivity               LinearLayoutManager  mLayoutManager  setOrientation LinearLayoutManager VERTICAL           mRecyclerView setLayoutManager mLayoutManager           mAdapter   new LoanAdapter mExampleList           mRecyclerView setLayoutManager mLayoutManager           mRecyclerView setAdapter mAdapter       Besides  I have to modify the method get-Item-Count in my adapter  because On on-Create-View the list is null and it through an error  So  my get-Item-Count is the following    Override     public int getItemCount             try               return mLoanList size              catch  Exception ex  return 0

User · Answer

Just add the following to RecyclerView  app layoutManager  android support v7 widget LinearLayoutManager    Example       lt android support v7 widget RecyclerView xmlns android  http   schemas android com apk res android          xmlns app  http   schemas android com apk res-auto          android id    id recyclerView          android layout width  match parent          android layout height  match parent          android scrollbars  vertical          app layoutManager  android support v7 widget LinearLayoutManager          app layout constraintBottom toTopOf  parent          app layout constraintEnd toEndOf  parent          app layout constraintStart toStartOf  parent          app layout constraintTop toTopOf  parent  gt        lt  android support v7 widget RecyclerView gt

User · Answer

Just put code inside onCreate   method     Like This     Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout your activity        recyclerView    RecyclerView  findViewById R id recycler view       layoutManager   new LinearLayoutManager YourActivity this       recyclerView setLayoutManager layoutManager       recyclerView setHasFixedSize true       mAdapter   new YourAdapter YourModelClassObject       recyclerView setAdapter mAdapter

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i have this problem   a few time problem is recycleView put in ScrollView object  After checking implementation  the reason appears to be the following  If RecyclerView gets put into a ScrollView  then during measure step its height is unspecified  because ScrollView allows any height  and  as a result  gets equal to minimum height  as per implementation  which is apparently zero   You have couple of options for fixing this    Set a certain height to RecyclerView Set ScrollView fillViewport to true Or keep RecyclerView outside of ScrollView  In my opinion  this is the best option by far  If RecyclerView height is not limited - which is the case when it s put into ScrollView - then all Adapter s views have enough place vertically and get created all at once  There is no view recycling anymore which kinda breaks the purpose of RecyclerView      Can be followed for android support v4 widget NestedScrollView as well

User · Answer

It worked for me    Do this if you are using the emulator          android usesCleartextTraffic  true     If your cardview xml design is like this       android support v7 widget CardView   Replace cardview xml design with android x   Must be such      androidx cardview widget CardView    If your recyclerview xml design is like this       android support v7 widget RecyclerView   Replace cardview xml design with android x   Must be such      androidx recyclerview widget RecyclerView

User · Answer

In my case  I was setting the adapter inside onLocationChanged   callback AND debugging in the emulator  Since it didn t detected a location change it never fired  When I set them manually in the Extended controls of the emulator it worked as expected

User · Answer

These Lines must be in OnCreate   mmAdapter   new Adapter msgList   mrecyclerView setAdapter mmAdapter

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Solved by setting the initialized empty list and adapter at the bottom and calling notifyDataSetChanged when results are fetched       LinearLayoutManager linearLayoutManager   new LinearLayoutManager getContext         recyclerviewItems setLayoutManager linearLayoutManager       someAdapter   new SomeAdapter getContext   feedList       recyclerviewItems setAdapter someAdapter

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I was getting same issue  I did every thing correct excepted in xml file    step first 1  initialize recyclerview  amp  List  amp  Adaptor    RecyclerView recyclerview  List lt ModelName gt  list  ProvideBidAdaptor adaptor   step 2  bind it in onCreate-   recyclerview   findByViewId R id providerBidRV   recyclerview setLayoutManager new LinearLayoutManager this    recyclerview setHasFixedSize true   list   new ArrayList lt  gt      step 3  Where you getting response or list - add list-  i am getting from response    responseList addAll response getResponse     adaptor   new ProvideBidAdaptor this  responseList   binding detailsRV setAdapter adaptor      Here is my xml file where i implement RecyclerView  I was forget orientation in LinearLayout  after this correction- RecyclerView attached    lt  xml version  1 0  encoding  utf-8   gt       lt layout gt       lt LinearLayout xmlns android  http   schemas android com apk res android          xmlns app  http   schemas android com apk res-auto          xmlns tools  http   schemas android com tools          android layout width  match parent          android layout height  match parent          android orientation  vertical          tools context   activities Bidding ProvideBid  gt            lt include             android id    id toolbar              layout   layout app toolbar   gt            lt androidx recyclerview widget RecyclerView             android id    id providerBidRV              android layout width  match parent              android layout height  match parent   gt       lt  LinearLayout gt   lt  layout gt     Here is Adaptor       public class ProvideBidAdaptor extends RecyclerView Adapter lt ProvideBidAdaptor ViewHolder gt        Context context      List lt Response gt  responseList      DateTime dateTimeInstance   new DateTime         public ProvideBidAdaptor Context context  List lt Response gt  responseList            this context   context          this responseList   responseList              NonNull      Override     public ViewHolder onCreateViewHolder  NonNull ViewGroup parent  int viewType            View view   LayoutInflater from context  inflate R layout geo presence item list  parent  false           return new ViewHolder view               Override     public void onBindViewHolder  NonNull ViewHolder holder  int position            final Response detailsResponse   responseList get position           if   detailsResponse getUserId   isEmpty                   holder day setText detailsResponse getDay                 holder locationType setText detailsResponse getLocationType                             Override     public int getItemCount             return responseList size               public class ViewHolder extends RecyclerView ViewHolder           TextView date locationType          CardView provideBidCV          LinearLayout dayLLayout locationTypeLLayout          public ViewHolder  NonNull View itemView                super itemView               date   itemView findViewById R id date value               day   itemView findViewById R id day value               locationType   itemView findViewById R id locationType value                locationTypeLLayout   itemView findViewById R id locationTypeLLayout

User · Answer

Can you make sure that you are calling these statements from the  quot main quot  thread outside of a delayed asynchronous callback  for example inside the onCreate   method   As soon as I call the same statements from a  quot delayed quot  method  In my case a ResultCallback  I get the same message  In my Fragment  calling the code below from inside a ResultCallback method produces the same message  After moving the code to the onConnected   method within my app  the message was gone    LinearLayoutManager llm   new LinearLayoutManager this   llm setOrientation LinearLayoutManager VERTICAL   list setLayoutManager llm   list setAdapter  adapter

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I lost 16 minutes of my life with this issue  so I ll just admit to this incredibly embarrassing mistake that I was making- I m using Butterknife and I bind the view in onCreateView in this fragment    It took a long time to figure out why I had no layoutmanager - but obviously the views are injected so they won t actually be null  so the the recycler will never be null    whoops    BindView R id recycler view  RecyclerView recyclerView        Override public View onCreateView               View v            ButterKnife bind this  v       setUpRecycler       public void setUpRecycler Data data     if  recyclerView    null       very silly because this will never happen          LinearLayoutManager linearLayoutManager   new LinearLayoutManager getActivity              more setup                        recyclerView setAdapter new XAdapter data        If you are getting an issue like this trace your view and use something like uiautomatorviewer

User · Answer

In my situation it was a forgotten component which locates in ViewHolder class but it wasn t located in layout file

User · Answer

This happens because the actual inflated layout is different from that which is being referred by you while finding the recyclerView  By default when you create the fragment  the onCreateView method appears as follows  return inflater inflate R layout  lt related layout gt  container false    Instead of that  separately create the view and use that to refer to recyclerView View view  inflater inflate R layout  lt related layout gt  container false   recyclerview view findViewById R id  lt recyclerView ID gt    return view

[android] recyclerview No adapter attached; skipping layout

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