How to properly retain a DialogFragment through rotation?

Question

I have a FragmentActivity that hosts a DialogFragment.

The DialogFragment perform network requests and handles Facebook authentication, so I need to retain it during

Answer 1

This is a convenience method using the fix from antonyt's answer:

public class RetainableDialogFragment extends DialogFragment {

    public RetainableDialogFragment() {
        setRetainInstance(true);
    }

    @Override
    public void onDestroyView() {
        Dialog dialog = getDialog();
        // handles https://code.google.com/p/android/issues/detail?id=17423
        if (dialog != null && getRetainInstance()) {
            dialog.setDismissMessage(null);
        }
        super.onDestroyView();
    }
}

Just let your DialogFragment extend this class and everything will be fine. This becomes especially handy, if you have multiple DialogFragments in your project which all need this fix.