onActivityResult never called in my nested fragment

Question

I have many nested fragments.

• Activity A
  • MainFragment (in a FrameLayout)
    • Fragment A (in a FrameLayout in MainFragment)
    • Fragment B (in a FrameLayout in MainFragment)
      • Fragment C (in a ViewPager in Fragment B)
      • Fragment D (in a ViewPager in Fragment B) <--- this is where I want to catch onActivityResult

This is how I start activity for result:

startActivityForResult(Intent.createChooser(intent, "Title"), FILE_PICK);

I don't have onActivityResult overriden anywhere else. I tried to call it in Activity A and it got called, but then even though I called super, it never came to Fragment D. Also tried to call onActivityResult in MainFragment and it never gets called there either.

Infanticide

This should be able to help you out : https://mcmap.net/q/1921892/-custom-recycleradapter-and-startactivityforresult you may find you have to call getChildFragmentManager() as its nested fragment – Klehm

blog.shamanland.com/2014/01/nested-fragments-for-result.html not sure if this is still up-to-date, or it was fixed. However this may be the case, i guess. – Everglades

Answer 1

The event is going to be received in the activity. To have it in Fragment D you have to propagate it.

On your parent activity override onActivityResult and start calling the onActivityResult of your fragments:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    List<Fragment> fragments = fragmentManager.getFragments();
    if(fragments != null){
        for(Fragment fragment : fragments){
            fragment.onActivityResult(requestCode, resultCode, data);
        }
    }
}

In your parent fragment you have to do the same thing, but remember to use getChildFragmentManager to get the fragment manager of the fragment

    List <Fragment> fragments = getChildFragmentManager().getFragments();

Paschasia

Thanks. I accepted this answer, because it is a "universal" solution to this problem. You simply call onActivityResult in all nested fragments. However I'd like to point out that @Jagu (below) also posted a very nice solution which solves this problem for a single fragment (exactly what I need). – Infanticide

Answer 2

For calling onActivityResult on the FragmentD override onActivityResult in the parent activity like:

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        Fragment fragmentD = getSupportFragmentManager().findFragmentByTag("FRAGMENT_D_TAG");
        if (fragmentD != null) {
            fragmentD.onActivityResult(requestCode, resultCode, data);
        }
    }

Gerrit