Set selected item of spinner programmatically

Question

I am working on an android project and I am using a spinner which uses an array adapter which is populated from the database    I can t find out how I can set the selected item programmatically from the list  For example if  in the spinner I have the following items    Category 1 Category 2 Category 3   How would I programmatically make Category 2 the selected item when the screen is created  I was thinking it might be similar to c  I E Spinner SelectedText    Category 2  but there doesn t seem to be any method similar to this for Android

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This is stated in comments elsewhere on this page but thought it useful to pull it out into an answer   When using an adapter  I ve found that the spinnerObject setSelection INDEX OF CATEGORY2  needs to occur after the setAdapter call  otherwise  the first item is always the initial selection      spinner setup    spinnerObject setAdapter myAdapter   spinnerObject setSelection INDEX OF CATEGORY2     This is confirmed by reviewing the AbsSpinner code for setAdapter

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Why don t you use your values from the DB and store them on an ArrayList and then just use   yourSpinner setSelection yourArrayList indexOf  Category 1

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No one of these answers gave me the solution  only worked with this   mySpinner post new Runnable          Override     public void run             mySpinner setSelection position

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The optimal solution is        public String   items  new String    item1   item2   item3           here you can use array or list      ArrayAdapter adapter  new ArrayAdapter Your Context  R layout support simple spinner dropdown item  items       final Spinner itemsSpinner   Spinner  findViewById R id itemSpinner   itemsSpinner setAdapter adapter     To get the position of the item automatically add the following statement   itemsSpinner setSelection itemsSpinner getPosition  item2

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Here is the Kotlin extension I am using  fun Spinner setItem list  Array lt CharSequence gt   value  String        val index   list indexOf value      this post   this setSelection index       Usage  spinnerPressure setItem resources getTextArray R array array pressure   pressureUnit

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I know that is already answered  but simple code to select one item  very simple   spGenre setSelection     ArrayAdapter  spGenre getAdapter    getPosition client getGenre

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for  int x   0  x  lt  spRaca getAdapter   getCount    x                  if  spRaca getItemIdAtPosition x     reprodutor getId                      spRaca setSelection x                   break

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Most of the time spinner setSelection i     i is 0 to  size-1  of adapter s size doesn t work  If you just call spinner setSelection i    It depends on your logic   If view is fully loaded and you want to call it from interface I suggest you to call   spinner setAdapter spinner no of hospitals getAdapter     spinner setSelection i      i is 0 or within adapter size   Or if you want to change between activity fragment lifecycle  call like this  spinner post new Runnable        Override public void run         spinner setSelection i

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If you have a list of contacts the you can go for this     Spinner  view findViewById R id mobile   setSelection spinnerContactPersonDesignationAdapter getPosition schoolContact get i  getCONT DESIGNATION

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In my case  this code saved my day   public static void selectSpinnerItemByValue Spinner spnr  long value        SpinnerAdapter adapter   spnr getAdapter        for  int position   0  position  lt  adapter getCount    position              if adapter getItemId position     value                spnr setSelection position               return

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This worked for me    Override protected void onStart         super onStart        mySpinner setSelection position       It s similar to  sberezin s solution but calling setSelection   in onStart

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You can make a generic method for this kind of work as I do in my UtilityClass which is  public void SetSpinnerSelection Spinner spinner String   array String text        for int i 0 i lt array length i              if array i  equals text                 spinner setSelection i

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You can easily set like this  spinner setSelection 1   instead of 1  you can set any position of list you would like to show

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I had the same issue since yesterday Unfortunately the first item in the array list is shown by default in spinner widget A turnaround would be to find the previous selected item with each element in the array list and swap its position with the first element Here is the code   OnResume     int before index   ShowLastSelectedElement    if  isFound         Collections swap yourArrayList before index 0        adapter   new ArrayAdapter lt String gt  CurrentActivity this                              android R layout simple spinner item  yourArrayList   adapter setDropDownViewResource android R layout simple spinner dropdown item                     yourListView setAdapter adapter         private int ShowLastSelectedElement             String strName               int swap index   0          for  int i 0 i lt societies size   i                 strName   yourArrayList get i               if  strName trim   toLowerCase   equals lastselectedelement trim   toLowerCase                      swap index   i                  isFound   true                                  return swap index

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I had made some extension function of Spinner for loading data and tracking item selection   Spinner kt  fun  lt T gt  Spinner load context  Context  items  List lt T gt   item  T    null        adapter   ArrayAdapter context  android R layout simple spinner item  items  apply           setDropDownViewResource android R layout simple spinner dropdown item             if  item    null  amp  amp  items isNotEmpty    setSelection items indexOf item      inline fun Spinner onItemSelected      crossinline itemSelected            parent  AdapterView lt   gt           view  View          position  Int          id  Long       - gt  Unit         onItemSelectedListener   object   AdapterView OnItemSelectedListener           override fun onNothingSelected parent  AdapterView lt   gt                         override fun onItemSelected parent  AdapterView lt   gt   view  View  position  Int  id  Long                itemSelected invoke parent  view  position  id                      Usaage Example  val list   listOf  String 1    String 2    String 3   val defaultData    String 2      load data to spinner your spinner load context  list  defaultData      load data without default selection  it points to first item your spinner load context  list      for watching item selection your spinner onItemSelected   parent  view  position  id - gt          do on item selection

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To find a value and select it   private void selectValue Spinner spinner  Object value        for  int i   0  i  lt  spinner getCount    i              if  spinner getItemAtPosition i  equals value                 spinner setSelection i               break

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Some explanation  at least for Fragments - never tried with pure Activity   Hope it helps someone to understand Android better  Most popular answer by Arun George is correct but don t work in some cases  The answer by Marco HC uses Runnable wich is a last resort due to additional CPU load   The answer is - you should simply choose correct place to call to setSelection    for example it works for me    Override public void onResume         super onResume         yourSpinner setSelection pos        But it won t work in onCreateView    I suspect that is the reason for the interest to this topic    The secret is that with Android you can t do anything you want in any method - oops   - components may just not be ready  As another example - you can t scroll ScrollView neither in onCreateView   nor in onResume    see the answer here

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I have a SimpleCursorAdapter so I have to duplicate the data for use the respose in this post   So  I recommend you try this way   for  int i   0  i  lt  spinnerRegion getAdapter   getCount    i          if  spinnerRegion getItemIdAtPosition i     Integer          valueOf signal getInt signal              getColumnIndexOrThrow  id region                spinnerRegion setSelection i           break            I think that is a real way

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This is work for me    spinner setSelection spinner adapter getPosition selected value  1

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Use the following  spinnerObject setSelection INDEX OF CATEGORY2

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public static void selectSpinnerItemByValue Spinner spnr  long value        SimpleCursorAdapter adapter    SimpleCursorAdapter  spnr getAdapter        for  int position   0  position  lt  adapter getCount    position              if adapter getItemId position     value                spnr setSelection position               return                      You can use the above like   selectSpinnerItemByValue spinnerObject  desiredValue      amp  of course you can also select by index directly like  spinnerObject setSelection index

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This is what I use in Kotlin   spinner setSelection resources getStringArray R array choices  indexOf  Choice 1

[android] Set selected item of spinner programmatically

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