ValueAnimator.java revision 7f9f99ea11051614a7727dfb9f9578b518e76e3c
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> 41a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 43a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 44a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 45a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 46a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 47a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /* 49a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The default amount of time in ms between animation frames 50a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 51608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase private static final long DEFAULT_FRAME_DELAY = 10; 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the handler to itself to process the next animation frame 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 577f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_START = 0; 587f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_FRAME = 1; 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 64051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 65051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 66051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 78051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 82a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 84051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 86e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // TODO: We access the following ThreadLocal variables often, some of them on every update. 87e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // If ThreadLocal access is significantly expensive, we may want to put all of these 88e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // fields into a structure sot hat we just access ThreadLocal once to get the reference 89e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // to that structure, then access the structure directly for each field. 90e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 93e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 94e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 95e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 96e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread list of all active animations 97e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sAnimations = 98e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 99e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 100e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 101e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 102e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 103e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 104e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 105e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread set of animations to be started on the next animation frame 106e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sPendingAnimations = 107e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 108e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 109e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 110e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 111e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 112e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 113e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 114e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase /** 115e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * Internal per-thread collections used to avoid set collisions as animations start and end 116e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * while being processed. 117e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase */ 118e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sDelayedAnims = 119e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 120e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 121e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 122e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 123e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 124e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 126e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sEndingAnims = 127e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 128e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 129e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 130e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 131e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 132e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 134e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sReadyAnims = 135e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 136e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 137e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 138e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 139e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 140e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 143e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 144e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 146b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase // type evaluators for the primitive types handled by this implementation 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 163a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 164a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 165a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 166a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 167a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 184e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 186051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 189b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 190b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 191b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 192b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 193b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 194b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 195b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1968b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1978b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1988b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1998b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 2008b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 2018b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 202b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 203b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 204b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 2152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of milliseconds between animation frames 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 239e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 253a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 260a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 261a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 262a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 263a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 264a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 267a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 269a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 270a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 271a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 272a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 274a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 275a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 276a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 277a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 278a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 280a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 281a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 282a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 283a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 284a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 285a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 292a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 29541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 40241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 444a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 446a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 447a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4620e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4630e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 469a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 470a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 50227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 50327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 5042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 5052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 5062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 5082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 50927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 51027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 51127c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 51227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 5142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 541a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 542a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 543a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 546a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 547a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 548a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 569a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static class AnimationHandler extends Handler { 570a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 571a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * There are only two messages that we care about: ANIMATION_START and 572a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 573a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * method is called. It cannot start synchronously when start() is called 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 575a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 576a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 577a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 578a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 579a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The FRAME message is the one that is sent over and over while there are any 580a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active animations to process. 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 582a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 583a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 584a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean callAgain = true; 585e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> animations = sAnimations.get(); 586e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> delayedAnims = sDelayedAnims.get(); 587a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 588a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: should we avoid sending frame message when starting if we 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // were already running? 590a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 591e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> pendingAnimations = sPendingAnimations.get(); 592e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animations.size() > 0 || delayedAnims.size() > 0) { 593a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase callAgain = false; 594a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 595a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // pendingAnims holds any animations that have requested to be started 596a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // We're going to clear sPendingAnimations, but starting animation may 597a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // cause more to be added to the pending list (for example, if one animation 598a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // starting triggers another starting). So we loop until sPendingAnimations 599a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is empty. 600e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase while (pendingAnimations.size() > 0) { 601a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<ValueAnimator> pendingCopy = 602e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase (ArrayList<ValueAnimator>) pendingAnimations.clone(); 603e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase pendingAnimations.clear(); 604a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int count = pendingCopy.size(); 605a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < count; ++i) { 606a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = pendingCopy.get(i); 607a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If the animation has a startDelay, place it on the delayed list 608e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (anim.mStartDelay == 0) { 609a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 610a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 611e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.add(anim); 612a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 613a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 614a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 615a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // fall through to process first frame of new animations 616a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_FRAME: 617a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // currentTime holds the common time for all animations processed 618a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // during this frame 619a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 620e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> readyAnims = sReadyAnims.get(); 621e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> endingAnims = sEndingAnims.get(); 622a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 623a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // First, process animations currently sitting on the delayed queue, adding 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // them to the active animations if they are ready 625e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numDelayedAnims = delayedAnims.size(); 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 627e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = delayedAnims.get(i); 628a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.delayedAnimationFrame(currentTime)) { 629e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.add(anim); 630a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 631a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 632e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numReadyAnims = readyAnims.size(); 633a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (numReadyAnims > 0) { 634a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numReadyAnims; ++i) { 635e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = readyAnims.get(i); 636a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 6378b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase anim.mRunning = true; 638e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.remove(anim); 639a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 640e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.clear(); 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 642a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 643a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now process all active animations. The return value from animationFrame() 644a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // tells the handler whether it should now be ended 645e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numAnims = animations.size(); 646e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase int i = 0; 647e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase while (i < numAnims) { 648e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = animations.get(i); 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.animationFrame(currentTime)) { 650e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.add(anim); 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 652e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (animations.size() == numAnims) { 653e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase ++i; 654e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 655e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // An animation might be canceled or ended by client code 656e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // during the animation frame. Check to see if this happened by 657e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // seeing whether the current index is the same as it was before 658e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // calling animationFrame(). Another approach would be to copy 659e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // animations to a temporary list and process that list instead, 660e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // but that entails garbage and processing overhead that would 661e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // be nice to avoid. 662e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase --numAnims; 663e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endingAnims.remove(anim); 664e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 666e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (endingAnims.size() > 0) { 667e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase for (i = 0; i < endingAnims.size(); ++i) { 668e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.get(i).endAnimation(); 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 670e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.clear(); 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If there are still active or delayed animations, call the handler again 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // after the frameDelay 675e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (callAgain && (!animations.isEmpty() || !delayedAnims.isEmpty())) { 67651b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, Math.max(0, sFrameDelay - 67751b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase (AnimationUtils.currentAnimationTimeMillis() - currentTime))); 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return sFrameDelay; 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sFrameDelay = frameDelay; 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8263060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8273060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8283060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8293060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8303060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8313060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8323060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8333060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8343060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8353060421045d4d9e411797f91bb509824b03e33fbJim Miller 8363060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 85927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 86027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 863e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 86627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 86727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 876e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 878a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 882b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 88653ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 891a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 893a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 894a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 901a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 902a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 903a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 904a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 9052970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 9062970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 9072970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 9082970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 9092970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 9102970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 9112970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 912a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 913a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 914a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 915a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9162970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9172970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9183060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9192970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 920add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 921add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 9228b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 923add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 924add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase sPendingAnimations.get().add(this); 9252970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 926add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 927add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase setCurrentPlayTime(getCurrentPlayTime()); 928154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 9298b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 930add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase 931b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 932b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 933b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9347c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9357c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9367c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 937b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 938b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 940e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase AnimationHandler animationHandler = sAnimationHandler.get(); 941e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animationHandler == null) { 942e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler = new AnimationHandler(); 943e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimationHandler.set(animationHandler); 944a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 945e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 946a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 947a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 948a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 949a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 950a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 952a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 953a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9552970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9562970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9572970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mPlayingState != STOPPED || sPendingAnimations.get().contains(this) || 9582970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase sDelayedAnims.get().contains(this)) { 959b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 9608b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 9617dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9627dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9637dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9647dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9657dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9667dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 967e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 9682970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 973e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (!sAnimations.get().contains(this) && !sPendingAnimations.get().contains(this)) { 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 976e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase startAnimation(); 977add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 978add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 979e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 980e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // The final value set on the target varies, depending on whether the animation 981e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // was supposed to repeat an odd number of times 982e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 983e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(0f); 984e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 985e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(1f); 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 987e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9928b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 9938b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 9948b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 9958b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 9968b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 9978b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 999a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1000a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1001a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void endAnimation() { 1024e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().remove(this); 1025e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sPendingAnimations.get().remove(this); 1026e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sDelayedAnims.get().remove(this); 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 10288b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10317c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10327c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10337c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10368b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1037b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void startAnimation() { 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 1046e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().add(this); 1047b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1048b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1049b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10527c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10537c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10547c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1098051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 111470d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 11197c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 11207c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 11217c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1127730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1128730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1146a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1147a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1148a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1149a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1150a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1151a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1152a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1153a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1154a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1155a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1169a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1205d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1206d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1207d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1228599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1229599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1230599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1231599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1232599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Used by StrictMode internally to annotate violations. Only 1233599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * called on the main thread. 1234599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1235599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1236599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1237599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 1238e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return sAnimations.get().size(); 1239599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12408901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12418901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12428901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12438901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12448901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12458901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12468901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12478901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12488901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sAnimations.get().clear(); 12498901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sPendingAnimations.get().clear(); 12508901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sDelayedAnims.get().clear(); 12518901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1252e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1253e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1254e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1255e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1256e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1257e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1258e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1259e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1260e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1261e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1262e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1263599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1264