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 */ 14 package androidx.leanback.widget; 15 16 import android.animation.Animator; 17 18 import androidx.annotation.NonNull; 19 20 import java.util.List; 21 22 /** 23 * FragmentAnimationProvider supplies animations for use during a fragment's onCreateAnimator 24 * callback. Animators added here will be added to an animation set and played together. This 25 * allows presenters used by a fragment to control their own fragment lifecycle animations. 26 */ 27 public interface FragmentAnimationProvider { 28 29 /** 30 * Animates the fragment in response to the IME appearing. 31 * @param animators A list of animations to which this provider's animations should be added. 32 */ onImeAppearing(@onNull List<Animator> animators)33 public abstract void onImeAppearing(@NonNull List<Animator> animators); 34 35 /** 36 * Animates the fragment in response to the IME disappearing. 37 * @param animators A list of animations to which this provider's animations should be added. 38 */ onImeDisappearing(@onNull List<Animator> animators)39 public abstract void onImeDisappearing(@NonNull List<Animator> animators); 40 41 } 42