ValueAnimator.java revision 730666858692ea396f5ad779654b5d86ff90b6ca
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; 25a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 26a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 27a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 38a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 39e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 40a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 42a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 43a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 44a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 45a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 46a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 47a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /* 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The default amount of time in ms between animation frames 49a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 50608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase private static final long DEFAULT_FRAME_DELAY = 10; 51a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the handler to itself to process the next animation frame 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_START = 0; 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_FRAME = 1; 58a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int STOPPED = 0; // Not yet playing 64a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int RUNNING = 1; // Playing normally 65a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int CANCELED = 2; // cancel() called - need to end it 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ENDED = 3; // end() called - need to end it 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int SEEKED = 4; // Seeked to some time value 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartTime; 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 82a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 84a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mSeekTime = -1; 86a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 87e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // TODO: We access the following ThreadLocal variables often, some of them on every update. 88e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // If ThreadLocal access is significantly expensive, we may want to put all of these 89e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // fields into a structure sot hat we just access ThreadLocal once to get the reference 90e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // to that structure, then access the structure directly for each field. 91e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 93a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 94e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 95e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 96e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 97e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread list of all active animations 98e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sAnimations = 99e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 100e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 101e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 102e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 103e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 104e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 105e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 106e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread set of animations to be started on the next animation frame 107e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sPendingAnimations = 108e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 109e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 110e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 111e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 112e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 113e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 114e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 115e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase /** 116e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * Internal per-thread collections used to avoid set collisions as animations start and end 117e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * while being processed. 118e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase */ 119e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sDelayedAnims = 120e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 121e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 122e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 123e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 124e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 125e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 127e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sEndingAnims = 128e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 129e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 130e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 131e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 132e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 133e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 135e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sReadyAnims = 136e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 137e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 138e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 139e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 140e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 141e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 144e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 145e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // type evaluators for the three primitive types handled by this implementation 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sDoubleEvaluator = new DoubleEvaluator(); 151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * STOPPED, RUNNING, ENDED, CANCELED. 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mPlayingState = STOPPED; 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 1962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of milliseconds between animation frames 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 220e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 253a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 261a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 262a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 263a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 264a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 27641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 38341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 425a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 426a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 427a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 429a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 430a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 436a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 438a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 439a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 440a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 441a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 442a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4430e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4440e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 446a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 447a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 469a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 470a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param duration The length of the animation, in milliseconds. 4842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 4902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 541a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 542a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 543a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static class AnimationHandler extends Handler { 546a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 547a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * There are only two messages that we care about: ANIMATION_START and 548a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * method is called. It cannot start synchronously when start() is called 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The FRAME message is the one that is sent over and over while there are any 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active animations to process. 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean callAgain = true; 561e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> animations = sAnimations.get(); 562e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> delayedAnims = sDelayedAnims.get(); 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: should we avoid sending frame message when starting if we 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // were already running? 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 567e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> pendingAnimations = sPendingAnimations.get(); 568e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animations.size() > 0 || delayedAnims.size() > 0) { 569a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase callAgain = false; 570a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 571a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // pendingAnims holds any animations that have requested to be started 572a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // We're going to clear sPendingAnimations, but starting animation may 573a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // cause more to be added to the pending list (for example, if one animation 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // starting triggers another starting). So we loop until sPendingAnimations 575a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is empty. 576e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase while (pendingAnimations.size() > 0) { 577a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<ValueAnimator> pendingCopy = 578e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase (ArrayList<ValueAnimator>) pendingAnimations.clone(); 579e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase pendingAnimations.clear(); 580a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int count = pendingCopy.size(); 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < count; ++i) { 582a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = pendingCopy.get(i); 583a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If the animation has a startDelay, place it on the delayed list 584a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.mStartDelay == 0 || anim.mPlayingState == ENDED || 585a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState == CANCELED) { 586a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 587a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 588e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.add(anim); 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 590a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 592a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // fall through to process first frame of new animations 593a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_FRAME: 594a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // currentTime holds the common time for all animations processed 595a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // during this frame 596a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 597e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> readyAnims = sReadyAnims.get(); 598e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> endingAnims = sEndingAnims.get(); 599a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 600a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // First, process animations currently sitting on the delayed queue, adding 601a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // them to the active animations if they are ready 602e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numDelayedAnims = delayedAnims.size(); 603a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 604e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = delayedAnims.get(i); 605a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.delayedAnimationFrame(currentTime)) { 606e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.add(anim); 607a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 608a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 609e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numReadyAnims = readyAnims.size(); 610a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (numReadyAnims > 0) { 611a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numReadyAnims; ++i) { 612e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = readyAnims.get(i); 613a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 614e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.remove(anim); 615a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 616e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.clear(); 617a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 618a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 619a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now process all active animations. The return value from animationFrame() 620a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // tells the handler whether it should now be ended 621e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numAnims = animations.size(); 622a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numAnims; ++i) { 623e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = animations.get(i); 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.animationFrame(currentTime)) { 625e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.add(anim); 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 627a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 628e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (endingAnims.size() > 0) { 629e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase for (int i = 0; i < endingAnims.size(); ++i) { 630e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.get(i).endAnimation(); 631a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 632e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.clear(); 633a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 634a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 635a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If there are still active or delayed animations, call the handler again 636a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // after the frameDelay 637e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (callAgain && (!animations.isEmpty() || !delayedAnims.isEmpty())) { 63851b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, Math.max(0, sFrameDelay - 63951b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase (AnimationUtils.currentAnimationTimeMillis() - currentTime))); 640a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 642a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 643a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 644a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 645a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 646a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 647a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 653a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 675a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return sFrameDelay; 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sFrameDelay = frameDelay; 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 7883060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 7893060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 7903060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 7913060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 7923060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 7933060421045d4d9e411797f91bb509824b03e33fbJim Miller } 7943060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 7953060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 7963060421045d4d9e411797f91bb509824b03e33fbJim Miller } 7973060421045d4d9e411797f91bb509824b03e33fbJim Miller 7983060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the interpolator to be used by this animation 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 824e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 835e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The system will automatically assign a float, int, or double evaluator based on the type 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * For example, when running an animation on color values, the {@link RGBEvaluator} 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8642970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8652970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8662970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 8672970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 8682970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 8692970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 8702970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 8752970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 8762970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 8773060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8782970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 8792970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 880b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 881b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 882b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 8837c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 8847c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 8857c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 886b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 887b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // This sets the initial value of the animation, prior to actually starting it running 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase setCurrentPlayTime(getCurrentPlayTime()); 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 8915c13d89c1332fcc499379b9064b891187b75ca32Chet Haase mCurrentIteration = 0; 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 893a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 894e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sPendingAnimations.get().add(this); 895e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase AnimationHandler animationHandler = sAnimationHandler.get(); 896e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animationHandler == null) { 897e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler = new AnimationHandler(); 898e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimationHandler.set(animationHandler); 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 900e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 901a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 902a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 903a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 904a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 908a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 909a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 910a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 911a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 912a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 913a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : tmpListeners) { 914a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationCancel(this); 915a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 916a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 9172970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9182970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9192970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mPlayingState != STOPPED || sPendingAnimations.get().contains(this) || 9202970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase sDelayedAnims.get().contains(this)) { 9212970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Just set the CANCELED flag - this causes the animation to end the next time a frame 9222970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // is processed. 9232970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingState = CANCELED; 9242970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 925a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 926a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 927a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 928a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 929e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (!sAnimations.get().contains(this) && !sPendingAnimations.get().contains(this)) { 930a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 931a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 932e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sPendingAnimations.get().add(this); 933e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase AnimationHandler animationHandler = sAnimationHandler.get(); 934e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animationHandler == null) { 935e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler = new AnimationHandler(); 936e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimationHandler.set(animationHandler); 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 938e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Just set the ENDED flag - this causes the animation to end the next time a frame 941a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is processed. 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = ENDED; 943a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 944a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 945a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 946a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 947a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // ENDED or CANCELED indicate that it has been ended or canceled, but not processed yet 948a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return (mPlayingState == RUNNING || mPlayingState == ENDED || mPlayingState == CANCELED); 949a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 950a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 952a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 953a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 955a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 956a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 957a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 958a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 960a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 961a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 962a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 963a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 964a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 965a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 967a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 968a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void endAnimation() { 975e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().remove(this); 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9807c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9817c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9827c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void startAnimation() { 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 993e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().add(this); 994b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 995b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 996b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9997c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10007c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10017c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == CANCELED || mPlayingState == ENDED) { 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // end the delay, process an animation frame to actually cancel it 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1026a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean animationFrame(long currentTime) { 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 106570d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 10707c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 10717c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10727c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1078730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1079730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ENDED: 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The final value set on the target varies, depending on whether the animation 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // was supposed to repeat an odd number of times 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(0f); 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(1f); 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Fall through to set done flag 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case CANCELED: 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues[i] = oldValues[i].clone(); 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValues[i]; 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1183599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1184599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1185599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1186599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1187599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Used by StrictMode internally to annotate violations. Only 1188599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * called on the main thread. 1189599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1190599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1191599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1192599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 1193e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return sAnimations.get().size(); 1194599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 1195599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1196