FragmentAnimationProvider.java revision ce0bd5abebf662db7d8b42468009b227715698ec 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14package android.support.v17.leanback.widget;
15
16import android.animation.Animator;
17import android.support.annotation.NonNull;
18
19import java.util.List;
20
21/**
22 * FragmentAnimationProvider supplies animations for use during a fragment's onCreateAnimator
23 * callback. Animators added here will be added to an animation set and played together. This
24 * allows presenters used by a fragment to control their own fragment lifecycle animations.
25 */
26public interface FragmentAnimationProvider {
27
28    /**
29     * Animates the fragment in response to the IME appearing.
30     * @param animators A list of animations to which this provider's animations should be added.
31     */
32    public abstract void onImeAppearing(@NonNull List<Animator> animators);
33
34    /**
35     * Animates the fragment in response to the IME disappearing.
36     * @param animators A list of animations to which this provider's animations should be added.
37     */
38    public abstract void onImeDisappearing(@NonNull List<Animator> animators);
39
40}
41