DialogFragment displayed from onContextItemSelected doesn't survive onPause/onResume

Question

I have a DialogDragment which I can show one of two ways:

1) By tapping on a ListView item from its OnItemClickListener

2) By activating a the ListView\'s co

Answer 1

I can reproduce this on Android 4.2 (ARM emulator and Galaxy Nexus). I am unable to reproduce your findings on an x86 4.1 emulator, a Nexus S (4.1), and a Motorola RAZR i (4.0). I can also reproduce the problem by modifying one of my own book samples. I filed an issue on it, using your sample: http://code.google.com/p/android/issues/detail?id=41901 Please add any other information you think would help them diagnose the problem.

With respect to a workaround, if 300ms works, then we have one of those lovely "timing issues", and I haven't the foggiest idea how you'd work around it, short of not using a menu to display it. For example, with your sample app, simply switching to SHOW_AS_ACTION_ALWAYS (and therefore having it be an item on the action bar rather than in an overflow menu) is sufficient to have the DialogFragment behave properly. Hopefully, you'll have a way of adjusting your UI to compensate for this bug, or perhaps somebody will cook up another workaround and post it here or on the issue.

Answer 2

I would recommend destroying the dialog on all pauses and recreate in onResume depending on state regardless of how the dialog is invoked. To do otherwise risks a memory leak if the app is killed by the OS in while paused.

To explicitly answer your question, don't rely on the OS to maintain your app state.