1a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/* 2a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Copyright (C) 2010 The Android Open Source Project 3a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 4a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 5a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * you may not use this file except in compliance with the License. 6a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * You may obtain a copy of the License at 7a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 8a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * http://www.apache.org/licenses/LICENSE-2.0 9a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 10a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Unless required by applicable law or agreed to in writing, software 11a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 12a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * See the License for the specific language governing permissions and 14a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * limitations under the License. 15a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 16a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 17a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haasepackage android.animation; 18a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 19a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Handler; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Looper; 21a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Message; 222970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haaseimport android.util.AndroidRuntimeException; 23a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 24a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AnimationUtils; 2527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haaseimport android.view.animation.LinearInterpolator; 26a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 27a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 38a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 39a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 40e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 413aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * 423aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <div class="special reference"> 433aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <h3>Developer Guides</h3> 443aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <p>For more information about animating with {@code ValueAnimator}, read the 453aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <a href="{@docRoot}guide/topics/graphics/prop-animation.html#value-animator">Property 463aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * Animation</a> developer guide.</p> 473aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * </div> 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 50a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 51a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /* 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The default amount of time in ms between animation frames 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 58608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase private static final long DEFAULT_FRAME_DELAY = 10; 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the handler to itself to process the next animation frame 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 647f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_START = 0; 657f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_FRAME = 1; 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 71051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 72051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 73051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 82a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 84a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 85051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 86a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 87a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 88a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 89a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 90a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 91051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 93e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // TODO: We access the following ThreadLocal variables often, some of them on every update. 94e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // If ThreadLocal access is significantly expensive, we may want to put all of these 95e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // fields into a structure sot hat we just access ThreadLocal once to get the reference 96e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // to that structure, then access the structure directly for each field. 97e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 98a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 100e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 101e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 102e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 103e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread list of all active animations 104e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sAnimations = 105e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 106e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 107e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 108e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 109e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 110e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 111e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 112e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread set of animations to be started on the next animation frame 113e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sPendingAnimations = 114e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 115e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 116e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 117e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 118e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 119e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 120e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 121e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase /** 122e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * Internal per-thread collections used to avoid set collisions as animations start and end 123e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * while being processed. 124e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase */ 125e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sDelayedAnims = 126e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 127e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 128e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 129e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 130e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 131e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 133e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sEndingAnims = 134e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 135e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 136e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 137e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 138e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 139e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 141e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sReadyAnims = 142e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 143e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 144e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 145e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 146e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 147e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 150e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 151e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 153b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase // type evaluators for the primitive types handled by this implementation 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 170a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 171a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 172a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 173a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 174a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 191e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 193051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 196b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 197b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 198b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 199b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 200b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 201b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 202b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 2038b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 2048b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 2058b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 2068b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 2078b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 2088b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 209b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 210b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 211b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 2222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of milliseconds between animation frames 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 246e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 253a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 260a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 261a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 262a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 263a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 264a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 267a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 269a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 270a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 271a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 272a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 274a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 275a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 276a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 277a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 278a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 279a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 280a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 281a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 282a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 283a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 284a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 285a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 287a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 288a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 289a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 290a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 291a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 292a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 299a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 30241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 40941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 4122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 4182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4690e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4700e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 50927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 51027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 5112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 5122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 5132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 5152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 51627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 51727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 51827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 51927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 5212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 541a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 542a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 543a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 546a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 547a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 548a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 569a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 570a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 571a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 572a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 573a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 575a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 576a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static class AnimationHandler extends Handler { 577a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 578a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * There are only two messages that we care about: ANIMATION_START and 579a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 580a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * method is called. It cannot start synchronously when start() is called 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 582a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 583a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 584a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 585a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 586a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The FRAME message is the one that is sent over and over while there are any 587a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active animations to process. 588a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 590a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean callAgain = true; 592e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> animations = sAnimations.get(); 593e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> delayedAnims = sDelayedAnims.get(); 594a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 595a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: should we avoid sending frame message when starting if we 596a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // were already running? 597a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 598e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> pendingAnimations = sPendingAnimations.get(); 599e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animations.size() > 0 || delayedAnims.size() > 0) { 600a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase callAgain = false; 601a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 602a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // pendingAnims holds any animations that have requested to be started 603a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // We're going to clear sPendingAnimations, but starting animation may 604a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // cause more to be added to the pending list (for example, if one animation 605a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // starting triggers another starting). So we loop until sPendingAnimations 606a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is empty. 607e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase while (pendingAnimations.size() > 0) { 608a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<ValueAnimator> pendingCopy = 609e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase (ArrayList<ValueAnimator>) pendingAnimations.clone(); 610e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase pendingAnimations.clear(); 611a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int count = pendingCopy.size(); 612a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < count; ++i) { 613a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = pendingCopy.get(i); 614a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If the animation has a startDelay, place it on the delayed list 615e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (anim.mStartDelay == 0) { 616a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 617a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 618e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.add(anim); 619a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 620a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 621a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 622a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // fall through to process first frame of new animations 623a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_FRAME: 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // currentTime holds the common time for all animations processed 625a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // during this frame 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 627e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> readyAnims = sReadyAnims.get(); 628e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> endingAnims = sEndingAnims.get(); 629a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 630a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // First, process animations currently sitting on the delayed queue, adding 631a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // them to the active animations if they are ready 632e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numDelayedAnims = delayedAnims.size(); 633a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 634e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = delayedAnims.get(i); 635a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.delayedAnimationFrame(currentTime)) { 636e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.add(anim); 637a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 638a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 639e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numReadyAnims = readyAnims.size(); 640a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (numReadyAnims > 0) { 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numReadyAnims; ++i) { 642e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = readyAnims.get(i); 643a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 6448b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase anim.mRunning = true; 645e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.remove(anim); 646a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 647e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.clear(); 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now process all active animations. The return value from animationFrame() 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // tells the handler whether it should now be ended 652e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numAnims = animations.size(); 653e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase int i = 0; 654e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase while (i < numAnims) { 655e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = animations.get(i); 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.animationFrame(currentTime)) { 657e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.add(anim); 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 659e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (animations.size() == numAnims) { 660e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase ++i; 661e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 662e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // An animation might be canceled or ended by client code 663e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // during the animation frame. Check to see if this happened by 664e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // seeing whether the current index is the same as it was before 665e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // calling animationFrame(). Another approach would be to copy 666e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // animations to a temporary list and process that list instead, 667e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // but that entails garbage and processing overhead that would 668e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // be nice to avoid. 669e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase --numAnims; 670e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endingAnims.remove(anim); 671e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 673e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (endingAnims.size() > 0) { 674e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase for (i = 0; i < endingAnims.size(); ++i) { 675e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.get(i).endAnimation(); 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 677e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.clear(); 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If there are still active or delayed animations, call the handler again 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // after the frameDelay 682e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (callAgain && (!animations.isEmpty() || !delayedAnims.isEmpty())) { 68351b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, Math.max(0, sFrameDelay - 68451b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase (AnimationUtils.currentAnimationTimeMillis() - currentTime))); 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return sFrameDelay; 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sFrameDelay = frameDelay; 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8333060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8343060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8353060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8363060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8373060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8383060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8393060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8403060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8413060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8423060421045d4d9e411797f91bb509824b03e33fbJim Miller 8433060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 86627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 86727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 870e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 87327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 87427c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 878a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 883e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 886a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 889b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 891a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 89353ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 894a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 901a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 902a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 903a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 904a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 908a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 909a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 910a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 911a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 9122970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 9132970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 9142970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 9152970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 9162970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 9172970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 9182970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 919a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 920a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 921a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 922a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9232970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9242970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9253060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9262970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 927add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 928add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 9298b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 930add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 931add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase sPendingAnimations.get().add(this); 9322970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 933add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 934add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase setCurrentPlayTime(getCurrentPlayTime()); 935154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 9368b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 937add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase 938b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 939b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 940b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9417c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9427c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9437c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 944b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 945b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 946a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 947e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase AnimationHandler animationHandler = sAnimationHandler.get(); 948e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animationHandler == null) { 949e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler = new AnimationHandler(); 950e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimationHandler.set(animationHandler); 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 952e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 953a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 955a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 956a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 957a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 958a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 960a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 961a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9622970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9632970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9642970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mPlayingState != STOPPED || sPendingAnimations.get().contains(this) || 9652970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase sDelayedAnims.get().contains(this)) { 966b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 9678b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 9687dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9697dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9707dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9717dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9727dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9737dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 974e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 9752970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 980e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (!sAnimations.get().contains(this) && !sPendingAnimations.get().contains(this)) { 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 983e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase startAnimation(); 984add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 985add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 986e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 987e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // The final value set on the target varies, depending on whether the animation 988e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // was supposed to repeat an odd number of times 989e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 990e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(0f); 991e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 992e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(1f); 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 994e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9998b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 10008b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 10018b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 10028b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 10038b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 10048b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1026a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void endAnimation() { 1031e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().remove(this); 1032e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sPendingAnimations.get().remove(this); 1033e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sDelayedAnims.get().remove(this); 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 10358b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10387c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10397c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10407c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10438b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1044b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void startAnimation() { 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 1053e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().add(this); 1054b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1055b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1056b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10597c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10607c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10617c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1105051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 112170d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 11267c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 11277c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 11287c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1134730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1135730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1153a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1154a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1155a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1156a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1157a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1158a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1159a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1160a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1161a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1162a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1176a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1212d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1213d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1214d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1235599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1236599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1237599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1238599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1239599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Used by StrictMode internally to annotate violations. Only 1240599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * called on the main thread. 1241599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1242599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1243599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1244599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 1245e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return sAnimations.get().size(); 1246599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12478901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12488901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12498901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12508901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12518901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12528901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12538901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12548901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12558901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sAnimations.get().clear(); 12568901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sPendingAnimations.get().clear(); 12578901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sDelayedAnims.get().clear(); 12588901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1259e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1260e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1261e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1262e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1263e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1264e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1265e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1266e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1267e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1268e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1269e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1270599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1271