ValueAnimator.java revision d4dd7025a1b356476e119de19a2e2cd5cf50d43c
1a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/* 2a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Copyright (C) 2010 The Android Open Source Project 3a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 4a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 5a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * you may not use this file except in compliance with the License. 6a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * You may obtain a copy of the License at 7a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 8a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * http://www.apache.org/licenses/LICENSE-2.0 9a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 10a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Unless required by applicable law or agreed to in writing, software 11a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 12a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * See the License for the specific language governing permissions and 14a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * limitations under the License. 15a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 16a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 17a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haasepackage android.animation; 18a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 19a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Handler; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Looper; 21a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Message; 222970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haaseimport android.util.AndroidRuntimeException; 23a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 24a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AnimationUtils; 2527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haaseimport android.view.animation.LinearInterpolator; 26a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 27a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 38a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 39a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 40e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 41a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 43a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 44a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 45a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 46a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 47a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /* 49a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The default amount of time in ms between animation frames 50a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 51608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase private static final long DEFAULT_FRAME_DELAY = 10; 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the handler to itself to process the next animation frame 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_START = 0; 58a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_FRAME = 1; 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 64051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 65051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 66051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 78051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 82a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 84051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 86e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // TODO: We access the following ThreadLocal variables often, some of them on every update. 87e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // If ThreadLocal access is significantly expensive, we may want to put all of these 88e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // fields into a structure sot hat we just access ThreadLocal once to get the reference 89e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // to that structure, then access the structure directly for each field. 90e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 93e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 94e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 95e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 96e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread list of all active animations 97e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sAnimations = 98e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 99e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 100e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 101e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 102e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 103e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 104e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 105e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase // The per-thread set of animations to be started on the next animation frame 106e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sPendingAnimations = 107e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 108e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 109e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 110e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 111e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 112e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 113e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 114e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase /** 115e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * Internal per-thread collections used to avoid set collisions as animations start and end 116e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase * while being processed. 117e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase */ 118e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sDelayedAnims = 119e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 120e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 121e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 122e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 123e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 124e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 126e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sEndingAnims = 127e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 128e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 129e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 130e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 131e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 132e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 134e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static final ThreadLocal<ArrayList<ValueAnimator>> sReadyAnims = 135e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<ArrayList<ValueAnimator>>() { 136e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase @Override 137e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase protected ArrayList<ValueAnimator> initialValue() { 138e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return new ArrayList<ValueAnimator>(); 139e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase } 140e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase }; 141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 143e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 144e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 146b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase // type evaluators for the primitive types handled by this implementation 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 163a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 164a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 165a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 166a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 167a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 184e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 186051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 1992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of milliseconds between animation frames 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 223e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 253a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 260a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 261a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 262a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 264a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 267a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 269a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 276a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 27941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 38641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 429a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 430a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 436a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 438a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 439a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 440a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 441a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 442a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 443a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 444a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4460e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4470e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 469a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 470a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 48627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 48727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 4882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 49327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 49427c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 49527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 49627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 4982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 541a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 542a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 543a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 546a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 547a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 548a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static class AnimationHandler extends Handler { 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * There are only two messages that we care about: ANIMATION_START and 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * method is called. It cannot start synchronously when start() is called 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The FRAME message is the one that is sent over and over while there are any 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active animations to process. 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean callAgain = true; 569e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> animations = sAnimations.get(); 570e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> delayedAnims = sDelayedAnims.get(); 571a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 572a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: should we avoid sending frame message when starting if we 573a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // were already running? 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 575e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> pendingAnimations = sPendingAnimations.get(); 576e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animations.size() > 0 || delayedAnims.size() > 0) { 577a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase callAgain = false; 578a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 579a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // pendingAnims holds any animations that have requested to be started 580a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // We're going to clear sPendingAnimations, but starting animation may 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // cause more to be added to the pending list (for example, if one animation 582a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // starting triggers another starting). So we loop until sPendingAnimations 583a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is empty. 584e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase while (pendingAnimations.size() > 0) { 585a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<ValueAnimator> pendingCopy = 586e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase (ArrayList<ValueAnimator>) pendingAnimations.clone(); 587e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase pendingAnimations.clear(); 588a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int count = pendingCopy.size(); 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < count; ++i) { 590a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = pendingCopy.get(i); 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If the animation has a startDelay, place it on the delayed list 592e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (anim.mStartDelay == 0) { 593a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 594a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 595e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.add(anim); 596a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 597a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 598a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 599a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // fall through to process first frame of new animations 600a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_FRAME: 601a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // currentTime holds the common time for all animations processed 602a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // during this frame 603a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 604e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> readyAnims = sReadyAnims.get(); 605e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ArrayList<ValueAnimator> endingAnims = sEndingAnims.get(); 606a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 607a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // First, process animations currently sitting on the delayed queue, adding 608a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // them to the active animations if they are ready 609e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numDelayedAnims = delayedAnims.size(); 610a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 611e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = delayedAnims.get(i); 612a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.delayedAnimationFrame(currentTime)) { 613e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.add(anim); 614a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 615a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 616e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numReadyAnims = readyAnims.size(); 617a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (numReadyAnims > 0) { 618a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numReadyAnims; ++i) { 619e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = readyAnims.get(i); 620a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 621e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase delayedAnims.remove(anim); 622a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 623e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase readyAnims.clear(); 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 625a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now process all active animations. The return value from animationFrame() 627a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // tells the handler whether it should now be ended 628e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase int numAnims = animations.size(); 629e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase int i = 0; 630e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase while (i < numAnims) { 631e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase ValueAnimator anim = animations.get(i); 632a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.animationFrame(currentTime)) { 633e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.add(anim); 634a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 635e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (animations.size() == numAnims) { 636e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase ++i; 637e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 638e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // An animation might be canceled or ended by client code 639e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // during the animation frame. Check to see if this happened by 640e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // seeing whether the current index is the same as it was before 641e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // calling animationFrame(). Another approach would be to copy 642e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // animations to a temporary list and process that list instead, 643e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // but that entails garbage and processing overhead that would 644e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // be nice to avoid. 645e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase --numAnims; 646e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endingAnims.remove(anim); 647e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 649e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (endingAnims.size() > 0) { 650e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase for (i = 0; i < endingAnims.size(); ++i) { 651e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.get(i).endAnimation(); 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 653e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase endingAnims.clear(); 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If there are still active or delayed animations, call the handler again 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // after the frameDelay 658e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (callAgain && (!animations.isEmpty() || !delayedAnims.isEmpty())) { 65951b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, Math.max(0, sFrameDelay - 66051b3227c2e08143c2e3dde9d51ae5b6fff36693cChet Haase (AnimationUtils.currentAnimationTimeMillis() - currentTime))); 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 675a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return sFrameDelay; 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sFrameDelay = frameDelay; 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8093060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8103060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8113060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8123060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8133060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8143060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8153060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8163060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8173060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8183060421045d4d9e411797f91bb509824b03e33fbJim Miller 8193060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 835a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 84227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 84327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 846e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 84927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 85027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 859e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 865b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 86953ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 878a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 886a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8882970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8892970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8902970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 8912970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 8922970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 8932970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 8942970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 8992970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9002970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9013060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9022970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 903add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 904add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 905add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 906add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase sPendingAnimations.get().add(this); 9072970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 908add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 909add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase setCurrentPlayTime(getCurrentPlayTime()); 910154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 911add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase 912b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 913b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 914b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9157c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9167c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9177c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 918b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 919b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 920a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 921e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase AnimationHandler animationHandler = sAnimationHandler.get(); 922e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (animationHandler == null) { 923e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler = new AnimationHandler(); 924e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimationHandler.set(animationHandler); 925a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 926e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 927a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 928a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 929a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 930a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 931a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 932a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 933a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 934a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 935a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 936a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : tmpListeners) { 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationCancel(this); 941a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 9432970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9442970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9452970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mPlayingState != STOPPED || sPendingAnimations.get().contains(this) || 9462970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase sDelayedAnims.get().contains(this)) { 947e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 9482970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 949a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 950a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 952a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 953e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase if (!sAnimations.get().contains(this) && !sPendingAnimations.get().contains(this)) { 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 955a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 956e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase startAnimation(); 957add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 958add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 959e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 960e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // The final value set on the target varies, depending on whether the animation 961e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // was supposed to repeat an odd number of times 962e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 963e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(0f); 964e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 965e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(1f); 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 967e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase endAnimation(); 968a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 972e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase return (mPlayingState == RUNNING); 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 980a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 994a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void endAnimation() { 999e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().remove(this); 1000e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sPendingAnimations.get().remove(this); 1001e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase sDelayedAnims.get().remove(this); 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10067c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10077c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10087c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void startAnimation() { 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 1019e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase sAnimations.get().add(this); 1020b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1021b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1022b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10257c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10267c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10277c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1071051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 108770d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 10927c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 10937c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10947c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1100730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1101730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1119a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1120a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1121a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1122a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1123a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1124a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1125a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1126a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1127a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1128a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1142a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1178d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1179d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1180d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1201599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1202599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1203599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1204599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1205599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Used by StrictMode internally to annotate violations. Only 1206599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * called on the main thread. 1207599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1208599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1209599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1210599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 1211e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase return sAnimations.get().size(); 1212599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12138901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12148901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12158901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12168901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12178901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12188901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12198901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12208901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12218901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sAnimations.get().clear(); 12228901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sPendingAnimations.get().clear(); 12238901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy sDelayedAnims.get().clear(); 12248901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1225e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1226e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1227e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1228e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1229e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1230e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1231e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1232e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1233e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1234e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1235e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1236599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1237