requestFeature must be called before adding content

Question

I am trying to implement a custom titlebar   Here is my Helper class   import android app Activity  import android view Window   public class UIHelper       public static void setupTitleBar Activity c            final boolean customTitleSupported   c requestWindowFeature Window FEATURE CUSTOM TITLE            c setContentView R layout main            if  customTitleSupported                c getWindow   setFeatureInt Window FEATURE CUSTOM TITLE  R layout titlebar                       Here is where I call it in onCreate      Override public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setupUI       private void setupUI         setContentView R layout main        UIHelper setupTitleBar this       But I get the error   requestFeature   must be called before adding content

User · Answer

Doesn t the error exactly tell you what s wrong  You re calling requestWindowFeature and setFeatureInt after you re calling setContentView   By the way  why are you calling setContentView twice

User · Answer

I was extending a DialogFragment and the above answer didnot work  I had to use getDialog   to achieve remove the title   getDialog   getWindow   requestFeature Window FEATURE NO TITLE

User · Answer

I had this issue with Dialogs based on an extended DialogFragment which worked fine on devices running API 26 but failed with API 23  The above strategies didn t work but I resolved the issue by removing the onCreateView method  which had been added by a more recent Android Studio template  from the DialogFragment and creating the dialog in onCreateDialog

User · Answer

Change the Compile SDK version Target SDK version to Build Tools version to 24 0 0 in build gradle if u face issue in request Feature

User · Answer

I know it s over a year old  but calling requestFeature   never solved my problem  In fact I don t call it at all   It was an issue with inflating the view I suppose  Despite all my searching  I never found a suitable solution until I played around with the different methods of inflating a view   AlertDialog Builder is the easy solution but requires a lot of work if you use the onPrepareDialog   to update that view   Another alternative is to leverage AsyncTask for dialogs   A final solution that I used is below   public class CustomDialog extends AlertDialog       private View content      public CustomDialog Context context           super context           LayoutInflater li   LayoutInflater from context          content   li inflate R layout custom view  null           setUpAdditionalStuff       do more view cleanup        setView content                       private void setUpAdditionalStuff                               Call   CustomDialog  dialog  prepare   in the onPrepareDialog   method      public void prepare            setTitle R string custom title          setIcon  getIcon                               Some Additional notes    Don t rely on hiding the title  There is often an empty space despite the title not being set  Don t try to build your own View with header footer and middle view  The header  as stated above  may not be entirely hidden despite requesting FEATURE NO TITLE  Don t heavily style your content view with color attributes or text size  Let the dialog handle that  other wise you risk putting black text on a dark blue dialog because the vendor inverted the colors

User · Answer

In my case I showed DialogFragment in Activity  In this dialog fragment I wrote as in DialogFragment remove black border   override fun onCreate savedInstanceState  Bundle         super onCreate savedInstanceState      setStyle STYLE NO FRAME  0     override fun onCreateDialog savedInstanceState  Bundle    Dialog       super onCreateDialog savedInstanceState       val dialog   Dialog context    R style ErrorDialogTheme      val inflater   LayoutInflater from context      val view   inflater inflate R layout fragment error dialog  null  false      dialog setTitle null      dialog setCancelable true      dialog setContentView view      return dialog     Either remove setStyle STYLE NO FRAME  0  in onCreate   or chande remove onCreateDialog  Because dialog settings have changed after the dialog has been created

User · Answer

For SDK version 23 and above  the same RuntimeException is thrown if you are using AppCompatActivity to extend your activity  It will not happen if your activity derives directly from Activity   This is a known issue on google as mentioned in https   code google com p android issues detail id 186440  The work around provided for this is to use supportRequestWindowFeature   method instead of using requestFeature     Please upvote if it solves your problem

User · Answer

Well  just do what the error message tells you   Don t call setContentView   before requestFeature     Note   As said in comments  for both ActionBarSherlock and AppCompat library  it s necessary to call requestFeature   before super onCreate

[android] requestFeature() must be called before adding content

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