Proper way of dismissing DialogFragment while application is in background

Question

I started using DialogFragment, because they are working nicely through orientation changes, and stuff. But there is nasty problem I encountered.

I have AsyncTask that shows progress DialogFragment and dismisses it onPostExecute. Everything works fine, except when onPostExecute happens while application is in background (after pressing Home button, for example). Then I got this error on DialogFragment dismissing - "Can not perform this action after onSaveInstanceState". Doh. Regular dialogs works just fine. But not FragmentDialog.

So I wonder, what is the proper way of dismissing DialogFragment while application is in background? I haven't really worked with Fragments a lot, so I think that I'm just missing something.

Answer 1

DialogFragment has a method called dismissAllowingStateLoss()

Answer 2

This is what I did (df == dialogFragment):

Make sure that you call the dialog this way:

df.show(getFragmentManager(), "DialogFragment_FLAG"); 

When you want to dismis the dialog make this check:

if (df.isResumed()){   df.dismiss(); } return; 

Make sure that you have the following in the onResume() method of your fragment (not df)

@Override public void onResume(){   Fragment f = getFragmentManager().findFragmentByTag("DialogFragment_FLAG");   if (f != null) {     DialogFragment df = (DialogFragment) f;     df.dismiss();   }   super.onResume(); }    

This way, the dialog will be dismissed if it's visible.. if not visible the dialog is going to be dismisded next the fragment becomes visible (onResume)...