Rajeev Kumar
20ecc54ebd
AnimationLayerSet. Change-Id: I8563d17d97ff36c2b07f73ecb73b0a355780355e Bug: 62466540
70 lines
2.2 KiB
Java
70 lines
2.2 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.anim;
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import android.animation.Animator;
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import android.animation.AnimatorListenerAdapter;
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import android.util.ArrayMap;
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import android.view.View;
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import java.util.Iterator;
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import java.util.Map;
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/**
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* Helper class to automatically build view hardware layers for the duration of an animation.
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*/
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public class AnimationLayerSet extends AnimatorListenerAdapter {
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private final ArrayMap<View, Integer> mViewsToLayerTypeMap;
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public AnimationLayerSet() {
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mViewsToLayerTypeMap = new ArrayMap<>();
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}
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public AnimationLayerSet(View v) {
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mViewsToLayerTypeMap = new ArrayMap<>(1);
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addView(v);
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}
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public void addView(View v) {
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mViewsToLayerTypeMap.put(v, v.getLayerType());
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}
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@Override
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public void onAnimationStart(Animator animation) {
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// Enable all necessary layers
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Iterator<Map.Entry<View, Integer>> itr = mViewsToLayerTypeMap.entrySet().iterator();
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while (itr.hasNext()) {
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Map.Entry<View, Integer> entry = itr.next();
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View v = entry.getKey();
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entry.setValue(v.getLayerType());
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v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
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if (v.isAttachedToWindow() && v.getVisibility() == View.VISIBLE) {
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v.buildLayer();
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}
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}
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}
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@Override
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public void onAnimationEnd(Animator animation) {
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Iterator<Map.Entry<View, Integer>> itr = mViewsToLayerTypeMap.entrySet().iterator();
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while (itr.hasNext()) {
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Map.Entry<View, Integer> entry = itr.next();
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entry.getKey().setLayerType(entry.getValue(), null);
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}
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}
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}
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