1 /* 2 * Copyright (C) 2016 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 17 package com.android.systemui.statusbar.notification; 18 19 import android.util.Pools; 20 21 /** 22 * A transform state of the action list 23 */ 24 public class ActionListTransformState extends TransformState { 25 26 private static Pools.SimplePool<ActionListTransformState> sInstancePool 27 = new Pools.SimplePool<>(40); 28 29 @Override sameAs(TransformState otherState)30 protected boolean sameAs(TransformState otherState) { 31 return otherState instanceof ActionListTransformState; 32 } 33 obtain()34 public static ActionListTransformState obtain() { 35 ActionListTransformState instance = sInstancePool.acquire(); 36 if (instance != null) { 37 return instance; 38 } 39 return new ActionListTransformState(); 40 } 41 42 @Override transformViewFullyFrom(TransformState otherState, float transformationAmount)43 public void transformViewFullyFrom(TransformState otherState, float transformationAmount) { 44 // Don't do Y transform - let the wrapper handle this based on the content height 45 } 46 47 @Override transformViewFullyTo(TransformState otherState, float transformationAmount)48 public void transformViewFullyTo(TransformState otherState, float transformationAmount) { 49 // Don't do Y transform - let the wrapper handle this based on the content height 50 } 51 52 @Override resetTransformedView()53 protected void resetTransformedView() { 54 // We need to keep the Y transformation, because this is used to keep the action list 55 // aligned at the bottom, unrelated to transforms. 56 float y = getTransformedView().getTranslationY(); 57 super.resetTransformedView(); 58 getTransformedView().setTranslationY(y); 59 } 60 61 @Override recycle()62 public void recycle() { 63 super.recycle(); 64 sInstancePool.release(this); 65 } 66 } 67