ValueAnimator.java revision 96e942dabeeaaa9ab6df3a870668c6fe53d930da
1a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/* 2a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Copyright (C) 2010 The Android Open Source Project 3a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 4a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 5a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * you may not use this file except in compliance with the License. 6a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * You may obtain a copy of the License at 7a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 8a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * http://www.apache.org/licenses/LICENSE-2.0 9a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 10a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Unless required by applicable law or agreed to in writing, software 11a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 12a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * See the License for the specific language governing permissions and 14a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * limitations under the License. 15a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 16a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 17a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haasepackage android.animation; 18a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 19a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Handler; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Looper; 21a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Message; 222970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haaseimport android.util.AndroidRuntimeException; 2396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brownimport android.view.Choreographer; 24a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 25a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AnimationUtils; 2627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haaseimport android.view.animation.LinearInterpolator; 27a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 38a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 39a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 40a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 41e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 42a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haasepublic class ValueAnimator extends Animator { 44a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 45a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 46a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 47a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 49a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * Messages sent to timing handler: START is sent when an animation first begins. 51a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 527f9f99ea11051614a7727dfb9f9578b518e76e3cXavier Ducrohet static final int ANIMATION_START = 0; 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 58051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int STOPPED = 0; // Not yet playing 59051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int RUNNING = 1; // Playing normally 60051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase static final int SEEKED = 2; // Seeked to some time value 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 64a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 65a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 72051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 78051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mSeekTime = -1; 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 82e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase private static ThreadLocal<AnimationHandler> sAnimationHandler = 83e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase new ThreadLocal<AnimationHandler>(); 84e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 86e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 87e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 88a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 89a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 90a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 93a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 94a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 95a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 96a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 97a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 98a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 102a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 103a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 104a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 105a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 106a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 123e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase * STOPPED, RUNNING, SEEKED. 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 125051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase int mPlayingState = STOPPED; 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 128b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 129b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 130b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 131b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 132b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 133b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 134b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1358b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1368b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1378b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1388b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1398b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1408b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 141b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 142b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 143b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 1542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase private long mDuration = 300; 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 175e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 23141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 2402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 2502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 2522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 2572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 2582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 2602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 2612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 2642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 2662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 2702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 33841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase (TypeEvaluator)null, values)}); 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 380a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 381a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 382a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 383a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 384a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 385a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 386a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 387a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 388a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 389a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 390a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 391a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 392a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 393a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 394a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 395a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 396a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 397a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 3980e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 3990e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 400a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 401a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 402a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 403a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 404a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 405a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 406a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 407a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 408a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 409a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 410a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 411a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 412a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 413a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 414a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 415a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 416a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 417a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 418a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 419a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 420a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 421a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 422a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 423a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 424a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 425a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 426a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 427a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 428a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 429a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 430a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 431a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 432a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 433a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 434a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 435a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 437a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 43827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 43927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 4402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 4412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 4422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 443a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 44527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 44627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 44727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 44827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 449a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 4502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 4542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 455a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 469a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 470a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 50596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private static class AnimationHandler extends Handler 50696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown implements Choreographer.OnAnimateListener { 5079c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread list of all active animations 5089c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mAnimations = new ArrayList<ValueAnimator>(); 5099c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5109c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown // The per-thread set of animations to be started on the next animation frame 5119c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mPendingAnimations = new ArrayList<ValueAnimator>(); 5129c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 5139c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown /** 5149c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Internal per-thread collections used to avoid set collisions as animations start and end 5159c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * while being processed. 5169c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown */ 5179c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mDelayedAnims = new ArrayList<ValueAnimator>(); 5189c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mEndingAnims = new ArrayList<ValueAnimator>(); 5199c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private final ArrayList<ValueAnimator> mReadyAnims = new ArrayList<ValueAnimator>(); 5209c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 52196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private final Choreographer mChoreographer; 52296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private boolean mIsChoreographed; 52396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 52496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private AnimationHandler() { 52596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer = Choreographer.getInstance(); 52696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 52796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 52996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The START message is sent when an animation's start() method is called. 53096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * It cannot start synchronously when start() is called 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 54196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationStart(); 54296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown break; 54396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 54496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 54696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private void doAnimationStart() { 54796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // mPendingAnimations holds any animations that have requested to be started 54896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // We're going to clear mPendingAnimations, but starting animation may 54996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // cause more to be added to the pending list (for example, if one animation 55096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // starting triggers another starting). So we loop until mPendingAnimations 55196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // is empty. 55296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (mPendingAnimations.size() > 0) { 55396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ArrayList<ValueAnimator> pendingCopy = 55496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown (ArrayList<ValueAnimator>) mPendingAnimations.clone(); 55596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mPendingAnimations.clear(); 55696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int count = pendingCopy.size(); 55796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < count; ++i) { 55896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = pendingCopy.get(i); 55996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If the animation has a startDelay, place it on the delayed list 56096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.mStartDelay == 0) { 56196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 56296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 56396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.add(anim); 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 56596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 56696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 56796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationFrame(); 56896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 569a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 57096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown private void doAnimationFrame() { 57196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // currentTime holds the common time for all animations processed 57296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // during this frame 57396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown long currentTime = AnimationUtils.currentAnimationTimeMillis(); 57496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 57596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // First, process animations currently sitting on the delayed queue, adding 57696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // them to the active animations if they are ready 57796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numDelayedAnims = mDelayedAnims.size(); 57896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numDelayedAnims; ++i) { 57996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mDelayedAnims.get(i); 58096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.delayedAnimationFrame(currentTime)) { 58196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.add(anim); 58296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 58396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 58496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numReadyAnims = mReadyAnims.size(); 58596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (numReadyAnims > 0) { 58696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (int i = 0; i < numReadyAnims; ++i) { 58796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mReadyAnims.get(i); 58896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.startAnimation(this); 58996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown anim.mRunning = true; 59096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mDelayedAnims.remove(anim); 59196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 59296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mReadyAnims.clear(); 59396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 59496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 59596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // Now process all active animations. The return value from animationFrame() 59696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // tells the handler whether it should now be ended 59796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int numAnims = mAnimations.size(); 59896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown int i = 0; 59996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown while (i < numAnims) { 60096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ValueAnimator anim = mAnimations.get(i); 60196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (anim.animationFrame(currentTime)) { 60296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.add(anim); 60396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 60496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mAnimations.size() == numAnims) { 60596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown ++i; 60696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 60796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // An animation might be canceled or ended by client code 60896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // during the animation frame. Check to see if this happened by 60996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // seeing whether the current index is the same as it was before 61096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // calling animationFrame(). Another approach would be to copy 61196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // animations to a temporary list and process that list instead, 61296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // but that entails garbage and processing overhead that would 61396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // be nice to avoid. 61496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown --numAnims; 61596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.remove(anim); 61696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 61896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mEndingAnims.size() > 0) { 61996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown for (i = 0; i < mEndingAnims.size(); ++i) { 62096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.get(i).endAnimation(this); 62196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mEndingAnims.clear(); 62396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 62496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 62596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // If there are still active or delayed animations, schedule a future call to 62696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown // onAnimate to process the next frame of the animations. 62796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (!mAnimations.isEmpty() || !mDelayedAnims.isEmpty()) { 62896e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (!mIsChoreographed) { 62996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mIsChoreographed = true; 63096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.addOnAnimateListener(this); 63196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 63296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.scheduleAnimation(); 63396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } else { 63496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown if (mIsChoreographed) { 63596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mIsChoreographed = false; 63696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown mChoreographer.removeOnAnimateListener(this); 63796e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 638a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 639a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 64096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown 64196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown @Override 64296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown public void onAnimate() { 64396e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown doAnimationFrame(); 64496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown } 645a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 646a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 647a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 653a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 67496e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 67596e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 67696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 68096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown return Choreographer.getFrameDelay(); 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 69096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 69196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 69296e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 69696e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown Choreographer.setFrameDelay(frameDelay); 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 7953060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 7963060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 7973060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 7983060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 7993060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8003060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8013060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8023060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8033060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8043060421045d4d9e411797f91bb509824b03e33fbJim Miller 8053060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 82827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 82927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 832e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 83527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 83627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 838a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 839a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 845e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 851b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 85553ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8742970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8752970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8762970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 8772970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 8782970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 8792970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 8802970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 8852970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 8862970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 8873060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8882970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 889add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mCurrentIteration = 0; 890add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mPlayingState = STOPPED; 8918b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 892add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase mStartedDelay = false; 8939c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler animationHandler = getOrCreateAnimationHandler(); 8949c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown animationHandler.mPendingAnimations.add(this); 8952970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (mStartDelay == 0) { 896add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase // This sets the initial value of the animation, prior to actually starting it running 897add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase setCurrentPlayTime(getCurrentPlayTime()); 898154f14508a11627d5a995b6fe2a14a83d794a6feChet Haase mPlayingState = STOPPED; 8998b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = true; 900add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase 901b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 902b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 903b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9047c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 9057c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 9067c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 907b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 908b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 909a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 910e3bc4e6f102fbef760fe0a59dd807363571b0867Chet Haase animationHandler.sendEmptyMessage(ANIMATION_START); 911a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 912a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 913a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 914a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 915a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 916a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 917a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 918a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 919a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9202970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9212970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9229c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9239c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (mPlayingState != STOPPED 9249c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mPendingAnimations.contains(this) 9259c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown || handler.mDelayedAnims.contains(this)) { 926b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase // Only notify listeners if the animator has actually started 9278b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 9287dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase ArrayList<AnimatorListener> tmpListeners = 9297dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9307dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase for (AnimatorListener listener : tmpListeners) { 9317dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase listener.onAnimationCancel(this); 9327dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9337dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9349c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 9352970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 936a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 9409c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = getOrCreateAnimationHandler(); 9419c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (!handler.mAnimations.contains(this) && !handler.mPendingAnimations.contains(this)) { 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 943a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 9449c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown startAnimation(handler); 945add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 946add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 947e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 948e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // The final value set on the target varies, depending on whether the animation 949e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase // was supposed to repeat an odd number of times 950e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 951e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(0f); 952e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } else { 953e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase animateValue(1f); 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 9559c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown endAnimation(handler); 956a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 957a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 958a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 9608b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return (mPlayingState == RUNNING || mRunning); 9618b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 9628b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 9638b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 9648b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 9658b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 967a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 968a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 980a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 9919c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void endAnimation(AnimationHandler handler) { 9929c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.remove(this); 9939c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.remove(this); 9949c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.remove(this); 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 9968b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase if (mRunning && mListeners != null) { 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 9997c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10007c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10017c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10048b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1005b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10129c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private void startAnimation(AnimationHandler handler) { 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 10149c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.add(this); 1015b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1016b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1017b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10207c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10217c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10227c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationStart(this); 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1026a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1031a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1032a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1066051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase boolean animationFrame(long currentTime) { 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 108270d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 10877c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 10887c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10897c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1095730666858692ea396f5ad779654b5d86ff90b6caChet Haase mCurrentIteration += (int)fraction; 1096730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1114a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1115a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1116a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1117a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1118a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1119a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1120a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1121a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1122a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1123a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1137a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1173d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1174d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1175d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1196599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1197599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1198599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1199599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 12009c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 12019c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1202599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1203599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1204599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1205599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 12069c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12079c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler != null ? handler.mAnimations.size() : 0; 1208599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 12098901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy 12108901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy /** 12118901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * Clear all animations on this thread, without canceling or ending them. 12128901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * This should be used with caution. 12138901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * 12148901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy * @hide 12158901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy */ 12168901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy public static void clearAllAnimations() { 12179c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12189c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler != null) { 12199c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mAnimations.clear(); 12209c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mPendingAnimations.clear(); 12219c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler.mDelayedAnims.clear(); 12229c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12239c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12249c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown 12259c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown private AnimationHandler getOrCreateAnimationHandler() { 12269c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown AnimationHandler handler = sAnimationHandler.get(); 12279c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown if (handler == null) { 12289c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown handler = new AnimationHandler(); 12299c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown sAnimationHandler.set(handler); 12309c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown } 12319c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown return handler; 12328901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1233e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1234e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1235e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1236e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1237e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1238e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1239e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1240e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1241e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1242e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1243e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1244599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1245