Nested fragments disappear during transition animation

Question

Here\'s the scenario: Activity contains fragment A, which in turn uses getChildFragmentManager() to add fragments A1 and A2

Answer 1

I was having the same issue with map fragment. It kept disappearing during the exit animation of its containing fragment. The workaround is to add animation for the child map fragment which will keep it visible during the exit animation of the parent fragment. The animation of the child fragment is keeping its alpha at 100% during its duration period.

Animation: res/animator/keep_child_fragment.xml

The animation is then applied when the map fragment is added to the parent fragment.

Parent fragment

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.map_parent_fragment, container, false);

    MapFragment mapFragment =  MapFragment.newInstance();

    getChildFragmentManager().beginTransaction()
            .setCustomAnimations(R.animator.keep_child_fragment, 0, 0, 0)
            .add(R.id.map, mapFragment)
            .commit();

    return view;
}

Finally, the duration of the child fragment animation is set in a resource file.

values/integers.xml

  500