How to create a drop-down list

Question

How can I create a drop-down list  I ve tried a ScrollView but it s not exactly what I need

User · Answer

You can also use AppCompatSpinner widget     lt android support v7 widget AppCompatSpinner     android id    id spinner order type      android layout width  wrap content      android layout height  wrap content      app backgroundTint   color red   gt       Inside your Activity class    AppCompatSpinner spinOrderType    AppCompatSpinner  findViewById R id spinner order type   List lt String gt  categories   new ArrayList lt String gt             categories add getString R string label table order            categories add getString R string label take away             ArrayAdapter lt String gt  dataAdapter   new ArrayAdapter lt String gt  mContext                  R layout layout spinner item  categories           dataAdapter setDropDownViewResource R layout layout spinner item           spinOrderType setAdapter dataAdapter           spinOrderType setSelection 0            spinOrderType setOnItemSelectedListener new AdapterView OnItemSelectedListener                  Override             public void onItemSelected AdapterView lt   gt  parent  View view  int position  long l                    String item   parent getItemAtPosition position  toString                    Log d TAG  item                               Override             public void onNothingSelected AdapterView lt   gt  adapterView                                    layout spinner item xml    lt  xml version  1 0  encoding  utf-8   gt   lt TextView xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  wrap content      xmlns tools  http   schemas android com tools      android gravity  left      android textSize   dimen text size large      android textColor   color text link      android padding   dimen margin 3    gt

User · Answer

Try this      lt string-array name  names  gt            lt item gt  lt  item gt           lt item gt By Bus lt  item gt           lt item gt By Train lt  item gt           lt item gt By Van lt  item gt           lt item gt By Bike lt  item gt       lt  string-array gt    String travel type    ArrayAdapter lt String gt  myAdapter   new ArrayAdapter AddNew Trip this android R layout simple list item 1  getResources   getStringArray R array names             myAdapter setDropDownViewResource android R layout simple dropdown item 1line            mySpinner setAdapter myAdapter             mySpinner setOnItemSelectedListener                   new AdapterView OnItemSelectedListener                            Override                      public void onItemSelected AdapterView lt   gt  adapterView  View view  int i  long l                             travel type   String valueOf adapterView getItemAtPosition i                               Toast makeText Plan Trip this  travel type  Toast LENGTH SHORT  show                                                  Override                      public void onNothingSelected AdapterView lt   gt  adapterView

User · Answer

In Kotlin you can do as  First  put this code in your layout     lt Spinner             android id  quot   id spinner quot              android layout width  quot wrap content quot              android layout height  quot match parent quot   gt   Then you can do in onCreate   in Activity as - gt     val spinner   findViewById lt Spinner gt  R id spinner      val items   arrayOf  quot 500g quot    quot 1kg quot    quot 2kg quot       val adapter   ArrayAdapter lt String gt           this          android R layout simple spinner dropdown item          items           spinner setAdapter adapter   You can get listener from dropdown as   spinner onItemSelectedListener   object   OnItemSelectedListener           override fun onItemSelected              arg0  AdapterView lt   gt                arg1  View               arg2  Int              arg3  Long                            Do what you want             val items   spinner selectedItem toString                                   override fun onNothingSelected arg0  AdapterView lt   gt

User · Answer

Spinner xml    lt Spinner       android id    id spinner        android layout width  wrap content        android layout height  match parent    gt    java   public class MainActivity extends AppCompatActivity implements AdapterView OnItemSelectedListener       private Spinner spinner      private static final String   paths     item 1    item 2    item 3          Override     protected void onCreate Bundle savedInstanceState           super onCreate savedInstanceState           setContentView R layout main layout            spinner    Spinner findViewById R id spinner           ArrayAdapter lt String gt adapter   new ArrayAdapter lt String gt  MainActivity this                  android R layout simple spinner item paths            adapter setDropDownViewResource android R layout simple spinner dropdown item           spinner setAdapter adapter           spinner setOnItemSelectedListener this                Override     public void onItemSelected AdapterView lt   gt  parent  View v  int position  long id             switch  position                case 0                     Whatever you want to happen when the first item gets selected                 break              case 1                     Whatever you want to happen when the second item gets selected                 break              case 2                     Whatever you want to happen when the thrid item gets selected                 break                         Override     public void onNothingSelected AdapterView lt   gt  parent                   TODO Auto-generated method stub

User · Answer

You need a Spinner  Here it is an example   spinner 1    Spinner  findViewById R id spinner1   spinner 1 setOnItemSelectedListener this   List lt String gt  list   new ArrayList lt String gt      list add  RANJITH    list add  ARUN    list add  JEESMON    list add  NISAM    list add  SREEJITH    list add  SANJAY    list add  AKSHY    list add  FIROZ    list add  RAHUL    list add  ARJUN    list add  SAVIYO    list add  VISHNU     ArrayAdapter lt String gt  adapter   new ArrayAdapter lt String gt  this  android R layout simple spinner item  list   adapter setDropDownViewResource android R layout simple spinner dropdown item   spinner 1 setAdapter adapter     spinner 2    Spinner  findViewById R id spinner two   spinner 2 setOnItemSelectedListener this   List lt String gt  city   new ArrayList lt String gt     city add  KASARGOD    city add  KANNUR    city add  THRISSUR    city add  KOZHIKODE    city add  TRIVANDRUM    city add  ERNAMKULLAM    city add  WAYANAD    city add  PALAKKAD    city add  ALAPUZHA    city add  IDUKKI    city add  KOTTAYAM    city add  PATHANAMTHITTA    city add  KOLLAM    city add  MALAPPURAM    ArrayAdapter lt String gt  adapter2   new ArrayAdapter lt String gt  this  android R layout simple spinner item  city   adapter2 setDropDownViewResource android R layout simple spinner dropdown item   spinner 2 setAdapter adapter2        Override public void onItemSelected AdapterView lt   gt  parent  View view  int position          long id           TODO Auto-generated method stub     Toast makeText this   YOUR SELECTION IS       parent getItemAtPosition position  toString    Toast LENGTH SHORT  show          Override public void onNothingSelected AdapterView lt   gt  parent           TODO Auto-generated method stub

User · Answer

Here is the code for it   activity main xml   lt LinearLayout xmlns android  http   schemas android com apk res android  android layout width  fill parent  android layout height  fill parent  android orientation  vertical   gt    lt Spinner     android id    id static spinner      android layout width  fill parent      android layout height  wrap content      android layout marginBottom  20dp      android layout marginTop  20dp    gt    lt Spinner     android id    id dynamic spinner      android layout width  fill parent      android layout height  wrap content    gt      strings xml   lt  xml version  1 0  encoding  utf-8   gt   lt resources gt   lt string name  app name  gt Ahotbrew com - Dropdown lt  string gt    lt string-array name  brew array  gt       lt item gt Cappuccino lt  item gt       lt item gt Espresso lt  item gt       lt item gt Mocha lt  item gt       lt item gt Caff   Americano lt  item gt       lt item gt Cafe Zorro lt  item gt   lt  string-array gt       MainActivity  Spinner staticSpinner    Spinner  findViewById R id static spinner           Create an ArrayAdapter using the string array and a default spinner     ArrayAdapter lt CharSequence gt  staticAdapter   ArrayAdapter              createFromResource this  R array brew array                      android R layout simple spinner item           Specify the layout to use when the list of choices appears     staticAdapter              setDropDownViewResource android R layout simple spinner dropdown item           Apply the adapter to the spinner     staticSpinner setAdapter staticAdapter        Spinner dynamicSpinner    Spinner  findViewById R id dynamic spinner        String   items   new String      Chai Latte    Green Tea    Black Tea          ArrayAdapter lt String gt  adapter   new ArrayAdapter lt String gt  this              android R layout simple spinner item  items        dynamicSpinner setAdapter adapter        dynamicSpinner setOnItemSelectedListener new OnItemSelectedListener              Override         public void onItemSelected AdapterView lt   gt  parent  View view                  int position  long id                Log v  item    String  parent getItemAtPosition position                        Override         public void onNothingSelected AdapterView lt   gt  parent                   TODO Auto-generated method stub                     This example is from  http   www ahotbrew com android-dropdown-spinner-example

User · Answer

simple   elegant   how I do it  Preview   XML   lt Spinner     android id  quot   id spinner1 quot      android layout width  quot match parent quot      android layout height  quot wrap content quot      android background  quot  android drawable btn dropdown quot      android spinnerMode  quot dropdown quot   gt   spinnerMode set to dropdown is androids way to make a dropdown   https   developer android com reference android widget Spinner attr android spinnerMode  Java    get the spinner from the xml  Spinner dropdown   findViewById R id spinner1     create a list of items for the spinner  String   items   new String    quot 1 quot    quot 2 quot    quot three quot      create an adapter to describe how the items are displayed  adapters are used in several places in android    There are multiple variations of this  but this is the basic variant  ArrayAdapter lt String gt  adapter   new ArrayAdapter lt  gt  this  android R layout simple spinner dropdown item  items     set the spinners adapter to the previously created one  dropdown setAdapter adapter    Documentation  This is the basics but there is more to be self taught with experimentation  https   developer android com guide topics ui controls spinner html  You can use a setOnItemSelectedListener with this   https   developer android com guide topics ui controls spinner html SelectListener  You can add a strings list from xml   https   developer android com guide topics ui controls spinner html Populate  There is an appCompat version of this view   https   developer android com reference androidx appcompat widget AppCompatSpinner

User · Answer

Try this   package example spin spinnerexample   import android support v7 app AppCompatActivity  import android os Bundle  import android view View  import android widget AdapterView  import android widget ArrayAdapter  import android widget Spinner  import android widget Toast   public class MainActivity extends AppCompatActivity implements AdapterView OnItemSelectedListener       String   bankNames   BOI   SBI   HDFC   PNB   OBC         Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main             Getting the instance of Spinner and applying OnItemSelectedListener on it         Spinner spin    Spinner  findViewById R id simpleSpinner           spin setOnItemSelectedListener this              Creating the ArrayAdapter instance having the bank name list         ArrayAdapter aa   new ArrayAdapter this android R layout simple spinner item bankNames           aa setDropDownViewResource android R layout simple spinner dropdown item             Setting the ArrayAdapter data on the Spinner         spin setAdapter aa                 Performing action onItemSelected and onNothing selected      Override     public void onItemSelected AdapterView lt   gt  arg0  View arg1  int position long id            Toast makeText getApplicationContext    bankNames position   Toast LENGTH LONG  show                Override     public void onNothingSelected AdapterView lt   gt  arg0               TODO Auto-generated method stub            activity main xml -   lt RelativeLayout xmlns android  http   schemas android com apk res android      xmlns tools  http   schemas android com tools      android layout width  match parent      android layout height  match parent      android paddingBottom   dimen activity vertical margin      android paddingLeft   dimen activity horizontal margin      android paddingRight   dimen activity horizontal margin      android paddingTop   dimen activity vertical margin      tools context   MainActivity  gt        lt Spinner         android id    id simpleSpinner          android layout width  wrap content          android layout height  wrap content          android layout centerHorizontal  true          android layout marginTop  100dp    gt    lt  RelativeLayout gt

User · Answer

This code is workig fine for me  hope it will help you too   item xml   lt  xml version  1 0  encoding  utf-8   gt   lt RelativeLayout xmlns android  http   schemas android com apk res android      android layout width  fill parent      android layout height  wrap content      android orientation  vertical      android padding  1dip   gt       lt TextView         android id    id spinnerItem          android layout width  match parent          android layout height  wrap content          android padding  2dp          android textSize  12sp   gt       lt  TextView gt   lt  RelativeLayout gt    details xml   lt LinearLayout xmlns android  http   schemas android com apk res android          android layout width  match parent          android layout height  wrap content          android orientation  vertical          android layout marginBottom  20dp          android background   FF00FF  gt          lt Spinner             android id    id dropStatus              android layout width  250dp              android layout height  30dp              android layout marginBottom  7dp              android drawSelectorOnTop  true   gt    lt  LinearLayout gt    Adapter class   import java util ArrayList   import android content Context  import android content res Resources  import android view LayoutInflater  import android view View  import android view ViewGroup  import android widget ArrayAdapter  import android widget TextView   public class StatusAdapter extends ArrayAdapter lt StatusBean gt         private Context context      private ArrayList lt StatusBean gt  statuses      public Resources res      StatusBean currRowVal   null      LayoutInflater inflater       public StatusAdapter Context context              int textViewResourceId  ArrayList lt StatusBean gt  statuses              Resources resLocal            super context  textViewResourceId  statuses           this context   context          this statuses   statuses          this res   resLocal                  inflater    LayoutInflater  context getSystemService Context LAYOUT INFLATER SERVICE               Override     public View getDropDownView int position  View convertView  ViewGroup parent            return getCustomView position  convertView  parent               Override     public View getView int position  View convertView  ViewGroup parent            return getCustomView position  convertView  parent              public View getCustomView int position  View convertView  ViewGroup parent            View row   inflater inflate R layout status item  parent  false           currRowVal   null          currRowVal    StatusBean  statuses get position           TextView label    TextView  row findViewById R id spinnerItem           if  position    0                label setText  Please select status              else               label setText currRowVal getStatus                        return row            StatusBean class   public class StatusBean        private String status      private String statusCode       public StatusBean                public StatusBean String status              String statusCode            this status   status          this statusCode   statusCode             public String getStatus             return status             public void setStatus String status            this status    status             public String getStatusCode             return statusCode             public void setStatusCode String statusCode            this statusCode   statusCode            Activity class    Inside onCreate methos   static ArrayList lt StatusBean gt  STATUS LIST   new ArrayList lt StatusBean gt      for int i 0 i lt  10 i      STATUS LIST add new StatusBean    Status     i     Stattus     i       final Spinner  dropStatus    Spinner findViewById R id dropStatus               Resources res   getResources                 StatusAdapter adapter   new StatusAdapter this  R layout item  SessionData  STATUS LIST  res               dropStatus setAdapter adapter

User · Answer

You can create spinner by these simple steps first create spinner in xml  lt Spinner         android id  quot   id select quot          android layout width  quot match parent quot          android layout height  quot match parent quot          android textColor  quot  070707 quot  gt  lt  Spinner gt   now create string arary in values   lt string-array name  quot itemselect quot  gt       lt item gt Repurchase lt  item gt       lt item gt Coupons lt  item gt   lt  string-array gt   now initialized in java file public class MemberCart Activity extends AppCompatActivity    Spinner select   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity member cart          select findViewById R id select    ArrayAdapter lt String gt  myadapter new ArrayAdapter lt String gt  Main Activity this android R layout simple list item 1 getResources   getStringArray R array itemselect        myadapter setDropDownViewResource android R layout simple spinner dropdown item       select setAdapter myadapter

[android] How to create a drop-down list?

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