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; 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 58a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 62051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 63051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 64051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 65a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 76051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 82051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 84a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 86e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 87e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 88e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 89a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 90e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 91e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 93a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 94a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 95a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 96a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 97a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 98a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 106a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 107a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 108a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 109a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 110a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 127e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 129051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 132b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 133b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 134b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 135b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 136b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 137b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 138b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1398b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1408b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1418b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1428b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1438b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1448b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 145b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 146b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 147b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 14817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * Tracks whether we've notified listeners of the onAnimationSTart() event. This can be 14917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * complex to keep track of since we notify listeners at different times depending on 15017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * startDelay and whether start() was called before end(). 15117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase */ 15217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private boolean mStartListenersCalled = false; 15317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 15417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase /** 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 165c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase private long mDuration = (long)(300 * sDurationScale); 166d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledDuration = 300; 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 170d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledStartDelay = 0; 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 188e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 226c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 227c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase /** 228c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase * @hide 229c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase */ 230c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase public static void setDurationScale(float durationScale) { 231c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase sDurationScale = durationScale; 232c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase } 233c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 235ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown * @hide 236ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown */ 237ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown public static float getDurationScale() { 238ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown return sDurationScale; 239ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown } 240ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown 241ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown /** 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 25941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 36641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 408a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 409a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 410a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 411a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 412f76a50ce8fdc6aea22cabc77b2977a1a15a79630Ken Wakasa * by the constructors of ValueAnimator that take a list of values. But a ValueAnimator can 413a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 414a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 415a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 416a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 417a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 418a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 419a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 420a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 421a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 422a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 423a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 424a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 425a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4260e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4270e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 429a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 430a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 436a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 438a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 439a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 440a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 441a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 442a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 443a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 444a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 446a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 447a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 46627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 46727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 4682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 47327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 47427c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 47527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 47627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 477d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledDuration = duration; 478d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mDuration = (long)(duration * sDurationScale); 4792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 488d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledDuration; 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 50920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown doAnimationFrame(currentTime); 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 53320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * The handler uses the Choreographer for executing periodic callbacks. 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 53520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown private static class AnimationHandler implements Runnable { 5369c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread list of all active animations 5379c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mAnimations = new ArrayList<ValueAnimator>(); 5389c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5392936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase // Used in doAnimationFrame() to avoid concurrent modifications of mAnimations 5402936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase private final ArrayList<ValueAnimator> mTmpAnimations = new ArrayList<ValueAnimator>(); 5412936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase 5429c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread set of animations to be started on the next animation frame 5439c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mPendingAnimations = new ArrayList<ValueAnimator>(); 5449c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5459c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown /** 5469c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Internal per-thread collections used to avoid set collisions as animations start and end 5479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * while being processed. 5489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown */ 5499c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mDelayedAnims = new ArrayList<ValueAnimator>(); 5509c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mEndingAnims = new ArrayList<ValueAnimator>(); 5519c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mReadyAnims = new ArrayList<ValueAnimator>(); 5529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 55396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private final Choreographer mChoreographer; 5544a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown private boolean mAnimationScheduled; 55596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 55696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private AnimationHandler() { 55796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer = Choreographer.getInstance(); 55896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 55996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 56120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Start animating on the next frame. 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 56320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown public void start() { 56420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown scheduleAnimation(); 56596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 56720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown private void doAnimationFrame(long frameTime) { 56896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // mPendingAnimations holds any animations that have requested to be started 56996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // We're going to clear mPendingAnimations, but starting animation may 57096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // cause more to be added to the pending list (for example, if one animation 57196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // starting triggers another starting). So we loop until mPendingAnimations 57296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // is empty. 57396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (mPendingAnimations.size() > 0) { 57496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ArrayList<ValueAnimator> pendingCopy = 57596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown (ArrayList<ValueAnimator>) mPendingAnimations.clone(); 57696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mPendingAnimations.clear(); 57796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int count = pendingCopy.size(); 57896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < count; ++i) { 57996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = pendingCopy.get(i); 58096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If the animation has a startDelay, place it on the delayed list 58196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.mStartDelay == 0) { 58296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 58396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 58496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.add(anim); 585a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 58696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 58796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 588c6ffab32415a58bbb010dcd115684f9dbc249710Chet Haase // Next, process animations currently sitting on the delayed queue, adding 58996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // them to the active animations if they are ready 59096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numDelayedAnims = mDelayedAnims.size(); 59196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numDelayedAnims; ++i) { 59296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mDelayedAnims.get(i); 59320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (anim.delayedAnimationFrame(frameTime)) { 59496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.add(anim); 59596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 59696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 59796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numReadyAnims = mReadyAnims.size(); 59896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (numReadyAnims > 0) { 59996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numReadyAnims; ++i) { 60096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mReadyAnims.get(i); 60196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 60296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.mRunning = true; 60396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.remove(anim); 60496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.clear(); 60696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 60896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // Now process all active animations. The return value from animationFrame() 60996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // tells the handler whether it should now be ended 61096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numAnims = mAnimations.size(); 6112936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < numAnims; ++i) { 6122936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase mTmpAnimations.add(mAnimations.get(i)); 6132936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase } 6142936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < numAnims; ++i) { 6152936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase ValueAnimator anim = mTmpAnimations.get(i); 6162936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase if (mAnimations.contains(anim) && anim.doAnimationFrame(frameTime)) { 61796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.add(anim); 61896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 6202936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase mTmpAnimations.clear(); 62196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mEndingAnims.size() > 0) { 6222936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < mEndingAnims.size(); ++i) { 62396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.get(i).endAnimation(this); 62496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.clear(); 62696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 62896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If there are still active or delayed animations, schedule a future call to 62996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // onAnimate to process the next frame of the animations. 63020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (!mAnimations.isEmpty() || !mDelayedAnims.isEmpty()) { 63120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown scheduleAnimation(); 632a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 633a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 63496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 6354a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown // Called by the Choreographer. 63696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown @Override 6374a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown public void run() { 6384a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown mAnimationScheduled = false; 63920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown doAnimationFrame(mChoreographer.getFrameTime()); 64020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 64120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 64220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown private void scheduleAnimation() { 64320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (!mAnimationScheduled) { 64420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 64520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mAnimationScheduled = true; 64620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 64796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 653a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 657d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledStartDelay; 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 667d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase this.mStartDelay = (long)(startDelay * sDurationScale); 668d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledStartDelay = startDelay; 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 675a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 67896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 67996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 68096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 68496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown return Choreographer.getFrameDelay(); 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 69496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 69596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 69696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 70096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown Choreographer.setFrameDelay(frameDelay); 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 7993060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8003060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8013060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8023060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8033060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8043060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8053060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8063060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8073060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8083060421045d4d9e411797f91bb509824b03e33fbJim Miller 8093060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 83227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 83327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 835a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 836e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 83927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 84027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 849e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 855b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 85953ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 87517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private void notifyStartListeners() { 87617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (mListeners != null && !mStartListenersCalled) { 87717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase ArrayList<AnimatorListener> tmpListeners = 87817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 87917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase int numListeners = tmpListeners.size(); 88017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase for (int i = 0; i < numListeners; ++i) { 88117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase tmpListeners.get(i).onAnimationStart(this); 88217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = true; 88517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8902970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8912970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8922970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 8932970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 8942970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 8952970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 8962970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9012970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9022970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9033060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9042970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 905add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 906add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 9078b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 908add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 9099c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler animationHandler = getOrCreateAnimationHandler(); 9109c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown animationHandler.mPendingAnimations.add(this); 9112970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 912add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 91359bbef0cd781f4933fd8a0a85b6067f36e529e02Jeff Brown setCurrentPlayTime(0); 914154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 9158b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 91617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 917a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 91820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown animationHandler.start(); 919a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 920a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 921a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 922a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 923a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 924a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 925a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 926a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 927a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9282970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9292970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9309c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9319c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (mPlayingState != STOPPED 9329c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mPendingAnimations.contains(this) 9339c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mDelayedAnims.contains(this)) { 934b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 93517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 93617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 93717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 93817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 93917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 9407dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9417dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9427dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9437dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9447dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9457dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9469c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 9472970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 948a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 949a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 950a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 9529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9539c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (!handler.mAnimations.contains(this) && !handler.mPendingAnimations.contains(this)) { 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 955a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 9569c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown startAnimation(handler); 95717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStarted = true; 958add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 959add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 960e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 9614dd176864310e1d9519bf6b88918913e9927984fChet Haase animateValue(mPlayingBackwards ? 0f : 1f); 9629c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 963a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 964a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 965a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9678b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 9688b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 9698b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 9708b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 9718b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 9728b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 980a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 994a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 9989c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void endAnimation(AnimationHandler handler) { 9999c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.remove(this); 10009c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.remove(this); 10019c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.remove(this); 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 100317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 100417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 100517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 100617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 100717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10107c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10117c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10127c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10158b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1016b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 101717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = false; 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10249c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void startAnimation(AnimationHandler handler) { 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 10269c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.add(this); 1027b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1028b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1029b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 103017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1073051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 107870d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 10837c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 10847c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10857c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1091730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1092730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 111020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Processes a frame of the animation, adjusting the start time if needed. 111120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * 111220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @param frameTime The frame time. 111320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @return true if the animation has ended. 111420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown */ 111520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final boolean doAnimationFrame(long frameTime) { 111620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (mPlayingState == STOPPED) { 111720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mPlayingState = RUNNING; 111820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (mSeekTime < 0) { 111920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime; 112020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } else { 112120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime - mSeekTime; 112220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // Now that we're playing, reset the seek time 112320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mSeekTime = -1; 112420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 112520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 112620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // The frame time might be before the start time during the first frame of 112720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // an animation. The "current time" must always be on or after the start 112820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // time to avoid animating frames at negative time intervals. In practice, this 112920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // is very rare and only happens when seeking backwards. 113020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final long currentTime = Math.max(frameTime, mStartTime); 113120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown return animationFrame(currentTime); 113220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 113320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 113420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown /** 1135a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1136a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1137a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1138a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1139a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1140a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1141a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1142a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1143a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1144a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1158a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1194d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1195d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1196d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1217599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1218599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1219599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1220599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 12219c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 12229c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1223599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1224599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1225599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1226599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 12279c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12289c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler != null ? handler.mAnimations.size() : 0; 1229599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12308901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12318901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12328901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12338901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12348901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12358901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12368901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12378901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12389c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12399c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler != null) { 12409c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.clear(); 12419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.clear(); 12429c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.clear(); 12439c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12449c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12459c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 12469c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private AnimationHandler getOrCreateAnimationHandler() { 12479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler == null) { 12499c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler = new AnimationHandler(); 12509c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown sAnimationHandler.set(handler); 12519c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler; 12538901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1254e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1255e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1256e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1257e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1258e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1259e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1260e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1261e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1262e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1263e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1264e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1265599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1266