Implement the Animation logic inside a native fragment subclass.

• Quick code :

@Override
    public Animator onCreateAnimator(int transit, boolean enter,
                                     int nextAnim) {
        switch (transit) {
            case FragmentTransaction.TRANSIT_FRAGMENT_FADE:
                if (enter) {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            android.R.animator.fade_in);
                } else {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            android.R.animator.fade_out);
                }
            case FragmentTransaction.TRANSIT_FRAGMENT_CLOSE:
                if (enter) {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            R.animator.fragment_pop_enter);
                } else {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            R.animator.fragment_pop_exit);
                }
            case FragmentTransaction.TRANSIT_FRAGMENT_OPEN:
            default:
                if (enter) {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            R.animator.fragment_enter);
                } else {
                    return AnimatorInflater.loadAnimator(
                            getActivity(),
                            R.animator.fragment_exit);
                }
        }
    }

• Just like the previous example , the animations are in /res/animator and wrapped in ObjectAnimator objects
• The animations are applied by loading them like this :

                return AnimatorInflater.loadAnimator(
                            getActivity(),
                            R.animator.fragment_exit);

• Relevant files :
  • https://github.com/blikoon/Ubufundi/blob/master/App1.13.5/app/src/main/java/com/blikoon/app1135/NativeFragment.java
  • https://github.com/blikoon/Ubufundi/blob/master/App1.13.5/app/src/main/java/com/blikoon/app1135/MainActivity.java