ValueAnimator.java revision be19e030a14c8e398e8af97fa898ea80187704df
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 86be19e030a14c8e398e8af97fa898ea80187704dfChet Haase /** 87be19e030a14c8e398e8af97fa898ea80187704dfChet Haase * @hide 88be19e030a14c8e398e8af97fa898ea80187704dfChet Haase */ 89be19e030a14c8e398e8af97fa898ea80187704dfChet Haase protected static ThreadLocal<AnimationHandler> sAnimationHandler = 90e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 91e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 93e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 94e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 95a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 96a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 97a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 98a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 109a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 110a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 111a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 112a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 113a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 130e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 132051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 135b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 136b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 137b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 138b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 139b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 140b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 141b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1428b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1438b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1448b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1458b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1468b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1478b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 148b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 149b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 150b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 15117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * Tracks whether we've notified listeners of the onAnimationSTart() event. This can be 15217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * complex to keep track of since we notify listeners at different times depending on 15317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * startDelay and whether start() was called before end(). 15417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase */ 15517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private boolean mStartListenersCalled = false; 15617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 15717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase /** 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 168c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase private long mDuration = (long)(300 * sDurationScale); 169d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledDuration = 300; 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 173d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledStartDelay = 0; 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 191e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 229c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 230c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase /** 231c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase * @hide 232c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase */ 233c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase public static void setDurationScale(float durationScale) { 234c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase sDurationScale = durationScale; 235c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase } 236c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 238ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown * @hide 239ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown */ 240ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown public static float getDurationScale() { 241ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown return sDurationScale; 242ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown } 243ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown 244ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown /** 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 26241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 36941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 411a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 412a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 413a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 414a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 415f76a50ce8fdc6aea22cabc77b2977a1a15a79630Ken Wakasa * by the constructors of ValueAnimator that take a list of values. But a ValueAnimator can 416a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 417a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 418a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 419a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 420a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 421a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 422a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 423a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 424a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 425a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 426a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 427a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4290e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4300e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 436a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 438a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 439a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 440a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 441a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 442a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 443a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 444a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 445a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 446a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 447a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 448a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 450a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 46927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 47027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 4712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 47627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 47727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 47827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 47927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 480d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledDuration = duration; 481d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mDuration = (long)(duration * sDurationScale); 4822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 491d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledDuration; 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 51220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown doAnimationFrame(currentTime); 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 53620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * The handler uses the Choreographer for executing periodic callbacks. 537be19e030a14c8e398e8af97fa898ea80187704dfChet Haase * 538be19e030a14c8e398e8af97fa898ea80187704dfChet Haase * @hide 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 540be19e030a14c8e398e8af97fa898ea80187704dfChet Haase protected static class AnimationHandler implements Runnable { 5419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread list of all active animations 542be19e030a14c8e398e8af97fa898ea80187704dfChet Haase /** @hide */ 543be19e030a14c8e398e8af97fa898ea80187704dfChet Haase protected final ArrayList<ValueAnimator> mAnimations = new ArrayList<ValueAnimator>(); 5449c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5452936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase // Used in doAnimationFrame() to avoid concurrent modifications of mAnimations 5462936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase private final ArrayList<ValueAnimator> mTmpAnimations = new ArrayList<ValueAnimator>(); 5472936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase 5489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread set of animations to be started on the next animation frame 549be19e030a14c8e398e8af97fa898ea80187704dfChet Haase /** @hide */ 550be19e030a14c8e398e8af97fa898ea80187704dfChet Haase protected final ArrayList<ValueAnimator> mPendingAnimations = new ArrayList<ValueAnimator>(); 5519c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown /** 5539c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Internal per-thread collections used to avoid set collisions as animations start and end 5549c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * while being processed. 555be19e030a14c8e398e8af97fa898ea80187704dfChet Haase * @hide 5569c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown */ 557be19e030a14c8e398e8af97fa898ea80187704dfChet Haase protected final ArrayList<ValueAnimator> mDelayedAnims = new ArrayList<ValueAnimator>(); 5589c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mEndingAnims = new ArrayList<ValueAnimator>(); 5599c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mReadyAnims = new ArrayList<ValueAnimator>(); 5609c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 56196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private final Choreographer mChoreographer; 5624a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown private boolean mAnimationScheduled; 56396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 56496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private AnimationHandler() { 56596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer = Choreographer.getInstance(); 56696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 56796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 56920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Start animating on the next frame. 570a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 57120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown public void start() { 57220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown scheduleAnimation(); 57396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 57520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown private void doAnimationFrame(long frameTime) { 57696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // mPendingAnimations holds any animations that have requested to be started 57796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // We're going to clear mPendingAnimations, but starting animation may 57896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // cause more to be added to the pending list (for example, if one animation 57996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // starting triggers another starting). So we loop until mPendingAnimations 58096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // is empty. 58196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (mPendingAnimations.size() > 0) { 58296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ArrayList<ValueAnimator> pendingCopy = 58396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown (ArrayList<ValueAnimator>) mPendingAnimations.clone(); 58496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mPendingAnimations.clear(); 58596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int count = pendingCopy.size(); 58696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < count; ++i) { 58796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = pendingCopy.get(i); 58896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If the animation has a startDelay, place it on the delayed list 58996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.mStartDelay == 0) { 59096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 59196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 59296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.add(anim); 593a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 59496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 59596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 596c6ffab32415a58bbb010dcd115684f9dbc249710Chet Haase // Next, process animations currently sitting on the delayed queue, adding 59796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // them to the active animations if they are ready 59896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numDelayedAnims = mDelayedAnims.size(); 59996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numDelayedAnims; ++i) { 60096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mDelayedAnims.get(i); 60120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (anim.delayedAnimationFrame(frameTime)) { 60296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.add(anim); 60396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numReadyAnims = mReadyAnims.size(); 60696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (numReadyAnims > 0) { 60796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numReadyAnims; ++i) { 60896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mReadyAnims.get(i); 60996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 61096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.mRunning = true; 61196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.remove(anim); 61296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.clear(); 61496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 61696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // Now process all active animations. The return value from animationFrame() 61796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // tells the handler whether it should now be ended 61896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numAnims = mAnimations.size(); 6192936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < numAnims; ++i) { 6202936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase mTmpAnimations.add(mAnimations.get(i)); 6212936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase } 6222936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < numAnims; ++i) { 6232936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase ValueAnimator anim = mTmpAnimations.get(i); 6242936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase if (mAnimations.contains(anim) && anim.doAnimationFrame(frameTime)) { 62596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.add(anim); 62696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 6282936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase mTmpAnimations.clear(); 62996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mEndingAnims.size() > 0) { 6302936fc0244ab2010696b3b1d723d6bbbc693916eChet Haase for (int i = 0; i < mEndingAnims.size(); ++i) { 63196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.get(i).endAnimation(this); 63296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 63396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.clear(); 63496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 63596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 63696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If there are still active or delayed animations, schedule a future call to 63796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // onAnimate to process the next frame of the animations. 63820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (!mAnimations.isEmpty() || !mDelayedAnims.isEmpty()) { 63920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown scheduleAnimation(); 640a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 64296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 6434a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown // Called by the Choreographer. 64496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown @Override 6454a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown public void run() { 6464a06c8008b2edd6677f9a411af79b0a4971b87feJeff Brown mAnimationScheduled = false; 64720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown doAnimationFrame(mChoreographer.getFrameTime()); 64820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 64920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 65020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown private void scheduleAnimation() { 65120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (!mAnimationScheduled) { 65220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mChoreographer.postCallback(Choreographer.CALLBACK_ANIMATION, this, null); 65320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mAnimationScheduled = true; 65420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 65596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 665d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledStartDelay; 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 675d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase this.mStartDelay = (long)(startDelay * sDurationScale); 676d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledStartDelay = startDelay; 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 68696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 68796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 68896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 69296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown return Choreographer.getFrameDelay(); 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 70296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 70396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 70496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 70896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown Choreographer.setFrameDelay(frameDelay); 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8073060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8083060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8093060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8103060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8113060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8123060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8133060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8143060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8153060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8163060421045d4d9e411797f91bb509824b03e33fbJim Miller 8173060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 835a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 84027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 84127c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 844e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 84727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 84827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 857e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 863b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 86753ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 878a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 88317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private void notifyStartListeners() { 88417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (mListeners != null && !mStartListenersCalled) { 88517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase ArrayList<AnimatorListener> tmpListeners = 88617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 88717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase int numListeners = tmpListeners.size(); 88817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase for (int i = 0; i < numListeners; ++i) { 88917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase tmpListeners.get(i).onAnimationStart(this); 89017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 89117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 89217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = true; 89317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 89417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8982970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8992970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 9002970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 9012970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 9022970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 9032970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 9042970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 908a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9092970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9102970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9113060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9122970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 913add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 914add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 9158b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 916add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 9179c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler animationHandler = getOrCreateAnimationHandler(); 9189c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown animationHandler.mPendingAnimations.add(this); 9192970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 920add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 92159bbef0cd781f4933fd8a0a85b6067f36e529e02Jeff Brown setCurrentPlayTime(0); 922154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 9238b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 92417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 925a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 92620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown animationHandler.start(); 927a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 928a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 929a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 930a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 931a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 932a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 933a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 934a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 935a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9362970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9372970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9389c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9399c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (mPlayingState != STOPPED 9409c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mPendingAnimations.contains(this) 9419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mDelayedAnims.contains(this)) { 942b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 94317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 94417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 94517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 94617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 94717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 9487dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9497dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9507dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9517dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9527dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9537dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9549c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 9552970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 956a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 957a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 958a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 9609c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9619c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (!handler.mAnimations.contains(this) && !handler.mPendingAnimations.contains(this)) { 962a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 963a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 9649c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown startAnimation(handler); 96517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStarted = true; 966add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 967add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 968e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 9694dd176864310e1d9519bf6b88918913e9927984fChet Haase animateValue(mPlayingBackwards ? 0f : 1f); 9709c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9758b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 9768b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 9778b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 9788b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 9798b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 9808b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 994a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 999a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1000a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1001a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10069c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void endAnimation(AnimationHandler handler) { 10079c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.remove(this); 10089c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.remove(this); 10099c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.remove(this); 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 101117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 101217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 101317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 101417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 101517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10187c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10197c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10207c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10238b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1024b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 102517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = false; 1026caf46486f54cdc899e383dfc776ec33a81b089a1Chet Haase mPlayingBackwards = false; 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10339c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void startAnimation(AnimationHandler handler) { 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 10359c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.add(this); 1036b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1037b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1038b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 103917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1082051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 108770d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 10927c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 10937c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10947c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1100730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1101730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 111920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Processes a frame of the animation, adjusting the start time if needed. 112020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * 112120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @param frameTime The frame time. 112220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @return true if the animation has ended. 112320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown */ 112420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final boolean doAnimationFrame(long frameTime) { 112520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (mPlayingState == STOPPED) { 112620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mPlayingState = RUNNING; 112720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown if (mSeekTime < 0) { 112820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime; 112920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } else { 113020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime - mSeekTime; 113120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // Now that we're playing, reset the seek time 113220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mSeekTime = -1; 113320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 113420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 113520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // The frame time might be before the start time during the first frame of 113620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // an animation. The "current time" must always be on or after the start 113720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // time to avoid animating frames at negative time intervals. In practice, this 113820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // is very rare and only happens when seeking backwards. 113920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final long currentTime = Math.max(frameTime, mStartTime); 114020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown return animationFrame(currentTime); 114120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 114220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 114320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown /** 1144a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1145a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1146a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1147a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1148a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1149a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1150a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1151a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1152a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1153a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1167a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1203d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1204d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1205d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1226599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1227599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1228599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1229599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 12309c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 12319c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1232599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1233599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1234599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1235599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 12369c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12379c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler != null ? handler.mAnimations.size() : 0; 1238599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12398901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12408901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12418901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12428901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12438901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12448901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12458901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12468901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler != null) { 12499c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.clear(); 12509c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.clear(); 12519c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.clear(); 12529c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12539c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12549c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 12559c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private AnimationHandler getOrCreateAnimationHandler() { 12569c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12579c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler == null) { 12589c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler = new AnimationHandler(); 12599c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown sAnimationHandler.set(handler); 12609c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12619c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler; 12628901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1263e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1264e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1265e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1266e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1267e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1268e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1269e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1270e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1271e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1272e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1273e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1274599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1275