Double fragment rotating Android with ActionBar

Question

I\'ve made a simple Android Activity with an ActionBar to switch between 2 fragments. It\'s all ok until I rotate the device. In facts, when I rotate I\'ve got 2 fragment on

Answer 1

Since I use a android.support.v4.view.ViewPager overriding onTabSelected would not help. But still you hint pointed me in the right direction.

The android.support.v4.app.FragmentManager saves all fragments in the onSaveInstanceState of the android.support.v4.app.FragmentActivity. Ignoring setRetainInstance — Depending on your design this might lead to duplicate fragments.

The simplest solution is to delete the saved fragment in the orCreate of the activity:

   @Override
   public void onCreate (final android.os.Bundle savedInstanceState)
   {
      if (savedInstanceState != null)
      {
         savedInstanceState.remove ("android:support:fragments");
      } // if

      super.onCreate (savedInstanceState);
…
      return;
   } // onCreate