ValueAnimator.java revision d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302
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; 22d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haaseimport android.os.SystemProperties; 232970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haaseimport android.util.AndroidRuntimeException; 2496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brownimport android.view.Choreographer; 25a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 26a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AnimationUtils; 2727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haaseimport android.view.animation.LinearInterpolator; 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 38a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 39a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 40a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 41a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 42e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 433aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * 443aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <div class="special reference"> 453aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <h3>Developer Guides</h3> 463aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <p>For more information about animating with {@code ValueAnimator}, read the 473aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <a href="{@docRoot}guide/topics/graphics/prop-animation.html#value-animator">Property 483aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * Animation</a> developer guide.</p> 493aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * </div> 50a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 56d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private static float sDurationScale = 1.0f; 57d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private static boolean sDurationScaleInitialized = false; 58a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 6096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * Messages sent to timing handler: START is sent when an animation first begins. 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 627f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_START = 0; 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 64a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 65a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 68051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 69051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 70051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 82051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 84a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 86a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 87a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 88051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 89a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 90a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 92e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 93e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 94e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 95a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 96e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 97e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 98a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 112a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 113a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 114a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 115a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 116a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 133e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 135051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 138b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 139b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 140b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 141b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 142b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 143b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 144b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1458b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1468b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1478b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1488b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1498b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1508b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 151b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 152b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 153b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 1642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 165d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledDuration = 300; 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 169d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledStartDelay = 0; 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 187e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 231d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase if (!sDurationScaleInitialized) { 232d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase // Scale value initialized per-process when first animator is constructed 233d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase String scaleString = SystemProperties.get("persist.sys.ui.animation"); 234d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase if (!scaleString.isEmpty()) { 235d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase sDurationScale = Float.parseFloat(scaleString); 236d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase } 237d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase sDurationScaleInitialized = true; 238d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase } 239d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mDuration *= sDurationScale; 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 25241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 35941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 401a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 402a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 403a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 404a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 405a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 406a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 407a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 408a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 409a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 410a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 411a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 412a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 413a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 414a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 415a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 416a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 417a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 418a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4190e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4200e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 421a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 422a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 423a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 424a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 425a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 426a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 427a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 429a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 430a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 436a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 438a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 439a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 440a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 441a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 442a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 443a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 444a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 446a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 447a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 45927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 46027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 4612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 46627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 46727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 46827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 46927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 470d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledDuration = duration; 471d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mDuration = (long)(duration * sDurationScale); 4722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 481d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledDuration; 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 52796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private static class AnimationHandler extends Handler 52896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown implements Choreographer.OnAnimateListener { 5299c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread list of all active animations 5309c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mAnimations = new ArrayList<ValueAnimator>(); 5319c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5329c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread set of animations to be started on the next animation frame 5339c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mPendingAnimations = new ArrayList<ValueAnimator>(); 5349c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5359c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown /** 5369c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Internal per-thread collections used to avoid set collisions as animations start and end 5379c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * while being processed. 5389c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown */ 5399c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mDelayedAnims = new ArrayList<ValueAnimator>(); 5409c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mEndingAnims = new ArrayList<ValueAnimator>(); 5419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mReadyAnims = new ArrayList<ValueAnimator>(); 5429c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 54396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private final Choreographer mChoreographer; 54496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private boolean mIsChoreographed; 54596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 54696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private AnimationHandler() { 54796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer = Choreographer.getInstance(); 54896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 54996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 55196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The START message is sent when an animation's start() method is called. 55296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * It cannot start synchronously when start() is called 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 56396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationStart(); 56496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown break; 56596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 56696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 56896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private void doAnimationStart() { 56996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // mPendingAnimations holds any animations that have requested to be started 57096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // We're going to clear mPendingAnimations, but starting animation may 57196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // cause more to be added to the pending list (for example, if one animation 57296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // starting triggers another starting). So we loop until mPendingAnimations 57396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // is empty. 57496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (mPendingAnimations.size() > 0) { 57596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ArrayList<ValueAnimator> pendingCopy = 57696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown (ArrayList<ValueAnimator>) mPendingAnimations.clone(); 57796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mPendingAnimations.clear(); 57896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int count = pendingCopy.size(); 57996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < count; ++i) { 58096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = pendingCopy.get(i); 58196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If the animation has a startDelay, place it on the delayed list 58296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.mStartDelay == 0) { 58396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 58496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 58596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.add(anim); 586a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 58796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 58896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 58996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationFrame(); 59096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 59296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private void doAnimationFrame() { 59396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // currentTime holds the common time for all animations processed 59496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // during this frame 59596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown long currentTime = AnimationUtils.currentAnimationTimeMillis(); 59696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 59796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // First, process animations currently sitting on the delayed queue, adding 59896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // them to the active animations if they are ready 59996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numDelayedAnims = mDelayedAnims.size(); 60096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numDelayedAnims; ++i) { 60196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mDelayedAnims.get(i); 60296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.delayedAnimationFrame(currentTime)) { 60396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.add(anim); 60496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numReadyAnims = mReadyAnims.size(); 60796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (numReadyAnims > 0) { 60896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numReadyAnims; ++i) { 60996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mReadyAnims.get(i); 61096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 61196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.mRunning = true; 61296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.remove(anim); 61396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.clear(); 61596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 61796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // Now process all active animations. The return value from animationFrame() 61896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // tells the handler whether it should now be ended 61996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numAnims = mAnimations.size(); 62096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int i = 0; 62196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (i < numAnims) { 62296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mAnimations.get(i); 62396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.animationFrame(currentTime)) { 62496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.add(anim); 62596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mAnimations.size() == numAnims) { 62796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ++i; 62896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 62996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // An animation might be canceled or ended by client code 63096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // during the animation frame. Check to see if this happened by 63196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // seeing whether the current index is the same as it was before 63296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // calling animationFrame(). Another approach would be to copy 63396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // animations to a temporary list and process that list instead, 63496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // but that entails garbage and processing overhead that would 63596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // be nice to avoid. 63696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown --numAnims; 63796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.remove(anim); 63896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 63996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 64096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mEndingAnims.size() > 0) { 64196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (i = 0; i < mEndingAnims.size(); ++i) { 64296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.get(i).endAnimation(this); 64396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 64496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.clear(); 64596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 64696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 64796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If there are still active or delayed animations, schedule a future call to 64896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // onAnimate to process the next frame of the animations. 64996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (!mAnimations.isEmpty() || !mDelayedAnims.isEmpty()) { 65096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (!mIsChoreographed) { 65196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mIsChoreographed = true; 65296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.addOnAnimateListener(this); 65396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 65496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.scheduleAnimation(); 65596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 65696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mIsChoreographed) { 65796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mIsChoreographed = false; 65896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.removeOnAnimateListener(this); 65996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 66296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 66396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown @Override 66496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown public void onAnimate() { 66596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationFrame(); 66696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 675a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 676d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledStartDelay; 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 686d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase this.mStartDelay = (long)(startDelay * sDurationScale); 687d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledStartDelay = startDelay; 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 69796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 69896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 69996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 70396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown return Choreographer.getFrameDelay(); 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 71396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 71496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 71596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 71996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown Choreographer.setFrameDelay(frameDelay); 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8183060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8193060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8203060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8213060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8223060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8233060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8243060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8253060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8263060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8273060421045d4d9e411797f91bb509824b03e33fbJim Miller 8283060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 835a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 85127c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 85227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 855e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 85827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 85927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 868e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 874b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 87853ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 886a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 891a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 893a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 894a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8972970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8982970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8992970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 9002970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 9012970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 9022970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 9032970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 904a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9082970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9092970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9103060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9112970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 912add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 913add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 9148b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 915add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 9169c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler animationHandler = getOrCreateAnimationHandler(); 9179c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown animationHandler.mPendingAnimations.add(this); 9182970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 919add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 920add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase setCurrentPlayTime(getCurrentPlayTime()); 921154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 9228b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 923add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase 924b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 925b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 926b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9277c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9287c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9297c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 930b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 931b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 932a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 933e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 934a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 935a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 936a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 941a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9432970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9442970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9459c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9469c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (mPlayingState != STOPPED 9479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mPendingAnimations.contains(this) 9489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mDelayedAnims.contains(this)) { 949b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 9508b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 9517dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9527dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9537dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9547dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9557dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9567dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9579c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 9582970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 960a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 961a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 962a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 9639c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9649c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (!handler.mAnimations.contains(this) && !handler.mPendingAnimations.contains(this)) { 965a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 9679c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown startAnimation(handler); 968add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 969add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 970e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 971e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // The final value set on the target varies, depending on whether the animation 972e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // was supposed to repeat an odd number of times 973e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 974e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(0f); 975e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 976e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(1f); 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 9789c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 980a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9838b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 9848b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 9858b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 9868b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 9878b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 9888b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 994a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 999a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 1000a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 1001a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10149c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void endAnimation(AnimationHandler handler) { 10159c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.remove(this); 10169c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.remove(this); 10179c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.remove(this); 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 10198b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10227c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10237c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10247c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1026a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10278b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1028b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10359c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void startAnimation(AnimationHandler handler) { 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 10379c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.add(this); 1038b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1039b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1040b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10437c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10447c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10457c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1089051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 110570d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 11107c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 11117c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 11127c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1118730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1119730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1137a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1138a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1139a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1140a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1141a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1142a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1143a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1144a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1145a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1146a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1160a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1196d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1197d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1198d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1219599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1220599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1221599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1222599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 12239c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 12249c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1225599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1226599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1227599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1228599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 12299c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12309c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler != null ? handler.mAnimations.size() : 0; 1231599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12328901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12338901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12348901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12358901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12368901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12378901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12388901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12398901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12409c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler != null) { 12429c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.clear(); 12439c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.clear(); 12449c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.clear(); 12459c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12469c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 12489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private AnimationHandler getOrCreateAnimationHandler() { 12499c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12509c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler == null) { 12519c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler = new AnimationHandler(); 12529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown sAnimationHandler.set(handler); 12539c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12549c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler; 12558901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1256e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1257e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1258e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1259e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1260e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1261e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1262e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1263e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1264e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1265e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1266e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1267599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1268