1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.launcher3.anim; 17 18 import android.animation.Animator; 19 import android.animation.AnimatorSet; 20 import android.util.SparseArray; 21 import android.view.animation.Interpolator; 22 23 import com.android.launcher3.LauncherAnimUtils; 24 25 import java.util.ArrayList; 26 import java.util.List; 27 28 /** 29 * Utility class for building animator set 30 */ 31 public class AnimatorSetBuilder { 32 33 public static final int ANIM_VERTICAL_PROGRESS = 0; 34 public static final int ANIM_WORKSPACE_SCALE = 1; 35 public static final int ANIM_WORKSPACE_FADE = 2; 36 public static final int ANIM_OVERVIEW_SCALE = 3; 37 public static final int ANIM_OVERVIEW_FADE = 4; 38 39 protected final ArrayList<Animator> mAnims = new ArrayList<>(); 40 41 private final SparseArray<Interpolator> mInterpolators = new SparseArray<>(); 42 private List<Runnable> mOnFinishRunnables = new ArrayList<>(); 43 44 /** 45 * Associates a tag with all the animations added after this call. 46 */ startTag(Object obj)47 public void startTag(Object obj) { } 48 play(Animator anim)49 public void play(Animator anim) { 50 mAnims.add(anim); 51 } 52 addOnFinishRunnable(Runnable onFinishRunnable)53 public void addOnFinishRunnable(Runnable onFinishRunnable) { 54 mOnFinishRunnables.add(onFinishRunnable); 55 } 56 build()57 public AnimatorSet build() { 58 AnimatorSet anim = LauncherAnimUtils.createAnimatorSet(); 59 anim.playTogether(mAnims); 60 if (!mOnFinishRunnables.isEmpty()) { 61 anim.addListener(new AnimationSuccessListener() { 62 @Override 63 public void onAnimationSuccess(Animator animation) { 64 for (Runnable onFinishRunnable : mOnFinishRunnables) { 65 onFinishRunnable.run(); 66 } 67 mOnFinishRunnables.clear(); 68 } 69 }); 70 } 71 return anim; 72 } 73 getInterpolator(int animId, Interpolator fallback)74 public Interpolator getInterpolator(int animId, Interpolator fallback) { 75 return mInterpolators.get(animId, fallback); 76 } 77 setInterpolator(int animId, Interpolator interpolator)78 public void setInterpolator(int animId, Interpolator interpolator) { 79 mInterpolators.put(animId, interpolator); 80 } 81 } 82