ValueAnimator.java revision 2b2e2c8d252b33fa25ccba1e37322256cd44b3d5
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 19c615c6fc9caca76cd96998f86e1f1e6393aeadbbTor Norbyeimport android.annotation.CallSuper; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Looper; 2118772ea228f3d292629c4f0b5f6392d047e0530dRomain Guyimport android.os.Trace; 222970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haaseimport android.util.AndroidRuntimeException; 23c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brownimport android.util.Log; 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> 423aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * 43d430753cba09acb07af8b313286f247c78a41a32Chet Haase * <p>Animators can be created from either code or resource files. Here is an example 44d430753cba09acb07af8b313286f247c78a41a32Chet Haase * of a ValueAnimator resource file:</p> 45d430753cba09acb07af8b313286f247c78a41a32Chet Haase * 46d430753cba09acb07af8b313286f247c78a41a32Chet Haase * {@sample development/samples/ApiDemos/res/anim/animator.xml ValueAnimatorResources} 47d430753cba09acb07af8b313286f247c78a41a32Chet Haase * 48d430753cba09acb07af8b313286f247c78a41a32Chet Haase * <p>It is also possible to use a combination of {@link PropertyValuesHolder} and 49d430753cba09acb07af8b313286f247c78a41a32Chet Haase * {@link Keyframe} resource tags to create a multi-step animation. 50d430753cba09acb07af8b313286f247c78a41a32Chet Haase * Note that you can specify explicit fractional values (from 0 to 1) for 51d430753cba09acb07af8b313286f247c78a41a32Chet Haase * each keyframe to determine when, in the overall duration, the animation should arrive at that 52d430753cba09acb07af8b313286f247c78a41a32Chet Haase * value. Alternatively, you can leave the fractions off and the keyframes will be equally 53d430753cba09acb07af8b313286f247c78a41a32Chet Haase * distributed within the total duration:</p> 54d430753cba09acb07af8b313286f247c78a41a32Chet Haase * 55d430753cba09acb07af8b313286f247c78a41a32Chet Haase * {@sample development/samples/ApiDemos/res/anim/value_animator_pvh_kf.xml 56d430753cba09acb07af8b313286f247c78a41a32Chet Haase * ValueAnimatorKeyframeResources} 57d430753cba09acb07af8b313286f247c78a41a32Chet Haase * 583aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <div class="special reference"> 593aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <h3>Developer Guides</h3> 603aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <p>For more information about animating with {@code ValueAnimator}, read the 613aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <a href="{@docRoot}guide/topics/graphics/prop-animation.html#value-animator">Property 623aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * Animation</a> developer guide.</p> 633aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * </div> 64a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 6518772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy@SuppressWarnings("unchecked") 663618d30f8ab6018025b11869676b309c3b4961cfDoris Liupublic class ValueAnimator extends Animator implements AnimationHandler.AnimationFrameCallback { 67c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown private static final String TAG = "ValueAnimator"; 68c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown private static final boolean DEBUG = false; 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 73d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private static float sDurationScale = 1.0f; 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 82c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown /** 83c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * The first time that the animation's animateFrame() method is called. This time is used to 84c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * determine elapsed time (and therefore the elapsed fraction) in subsequent calls 85c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * to animateFrame(). 86c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * 87c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * Whenever mStartTime is set, you must also update mStartTimeCommitted. 88c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown */ 89051d35e41f7b21cd8a1608bdce10cf70952c6be4Chet Haase long mStartTime; 90a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 92c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * When true, the start time has been firmly committed as a chosen reference point in 93c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * time by which the progress of the animation will be evaluated. When false, the 94c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * start time may be updated when the first animation frame is committed so as 95c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * to compensate for jank that may have occurred between when the start time was 96c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * initialized and when the frame was actually drawn. 97c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * 98c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * This flag is generally set to false during the first frame of the animation 99c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * when the animation playing state transitions from STOPPED to RUNNING or 100c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * resumes after having been paused. This flag is set to true when the start time 101c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * is firmly committed and should not be further compensated for jank. 102c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown */ 103c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown boolean mStartTimeCommitted; 104c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown 105c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown /** 106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1090d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase float mSeekFraction = -1; 110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1118aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase /** 1128aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * Set on the next frame after pause() is called, used to calculate a new startTime 1138aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * or delayStartTime which allows the animator to continue from the point at which 1148aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * it was paused. If negative, has not yet been set. 1158aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase */ 1168aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase private long mPauseTime; 1178aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 1188aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase /** 1198aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * Set when an animator is resumed. This triggers logic in the next frame which 1208aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * actually resumes the animator. 1218aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase */ 1228aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase private boolean mResumed = false; 1238aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 125e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 126e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 135f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * Flag to indicate whether this animator is playing in reverse mode, specifically 136f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * by being started or interrupted by a call to reverse(). This flag is different than 137f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * mPlayingBackwards, which indicates merely whether the current iteration of the 138f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * animator is playing in reverse. It is used in corner cases to determine proper end 139f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * behavior. 140f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase */ 141f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase private boolean mReversing; 142f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase 143f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase /** 144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 150a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 151a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 152a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 153a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 154a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1553618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * Tracks the time (in milliseconds) when the last frame arrived. 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1573618d30f8ab6018025b11869676b309c3b4961cfDoris Liu private long mLastFrameTime = 0; 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 160b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 161b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 162b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 163b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 164b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 165b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 166b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1678b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1688b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1698b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1708b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1718b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1728b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 173b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 174b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 175b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 1768aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * Tracks whether we've notified listeners of the onAnimationStart() event. This can be 17717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * complex to keep track of since we notify listeners at different times depending on 17817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * startDelay and whether start() was called before end(). 17917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase */ 18017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private boolean mStartListenersCalled = false; 18117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 18217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase /** 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1883dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu /** 1893dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu * Flag that tracks whether animation has been requested to end. 1903dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu */ 1913dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu private boolean mAnimationEndRequested = false; 1923dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 198d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledDuration = 300; 1993618d30f8ab6018025b11869676b309c3b4961cfDoris Liu private long mDuration = (long)(mUnscaledDuration * sDurationScale); 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 2023618d30f8ab6018025b11869676b309c3b4961cfDoris Liu long mStartDelay = 0; 203d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase private long mUnscaledStartDelay = 0; 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 221e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 226d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 253a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 259c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase /** 260c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase * @hide 261c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase */ 262c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase public static void setDurationScale(float durationScale) { 263c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase sDurationScale = durationScale; 264c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase } 265c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 267ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown * @hide 268ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown */ 269ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown public static float getDurationScale() { 270ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown return sDurationScale; 271ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown } 272ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown 273ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown /** 274a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 276a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 277a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 278a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 279a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 280a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 281a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 288a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 29141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2991ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * Constructs and returns a ValueAnimator that animates between color values. A single 3001ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * value implies that that value is the one being animated to. However, this is not typically 3011ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * useful in a ValueAnimator object because there is no way for the object to determine the 3021ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * starting value for the animation (unlike ObjectAnimator, which can derive that value 3031ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * from the target object and property being animated). Therefore, there should typically 3041ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * be two or more values. 3051ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * 3061ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * @param values A set of values that the animation will animate between over time. 3071ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * @return A ValueAnimator object that is set up to animate between the given values. 3081ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount */ 3091ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount public static ValueAnimator ofArgb(int... values) { 3101ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount ValueAnimator anim = new ValueAnimator(); 3111ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount anim.setIntValues(values); 3121ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount anim.setEvaluator(ArgbEvaluator.getInstance()); 3131ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount return anim; 3141ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount } 3151ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount 3161ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount /** 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 39018772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofInt("", values)); 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4102794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 4122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 41641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 41818772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofFloat("", values)); 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 4252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 4272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 4282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 4292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 45018772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofObject("", null, values)); 4512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 461f76a50ce8fdc6aea22cabc77b2977a1a15a79630Ken Wakasa * by the constructors of ValueAnimator that take a list of values. But a ValueAnimator can 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 466a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 469a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 470a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 47218772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy PropertyValuesHolder valuesHolder = values[i]; 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4750e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4760e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 495a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 501c615c6fc9caca76cd96998f86e1f1e6393aeadbbTor Norbye @CallSuper 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 51527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 51627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 5172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 5182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 5192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 521c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 5222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 52327c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 52427c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 52527c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 52627c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 527d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledDuration = duration; 5287a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown updateScaledDuration(); 5292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 5327a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown private void updateScaledDuration() { 5337eaccbfbc25b772659536c096f6341927c38c470Doris Liu mDuration = (long)(mUnscaledDuration * sDurationScale); 5347a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown } 5357a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown 536a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 540a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 541c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 542a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 543d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledDuration; 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 546a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5471309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu * @hide 5481309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu */ 5491309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu @Override 5501309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu public long getTotalDuration() { 5511309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu if (mRepeatCount == INFINITE) { 5521309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu return DURATION_INFINITE; 5531309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } else { 5541309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu return mUnscaledStartDelay + (mUnscaledDuration * (mRepeatCount + 1)); 5551309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } 5561309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } 5571309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu 5581309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu /** 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 5695a25e5bae223bbee56dab75e36d1d947c8c3cb11Chet Haase float fraction = mUnscaledDuration > 0 ? (float) playTime / mUnscaledDuration : 1; 5700d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase setCurrentFraction(fraction); 5710d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase } 5720d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase 5730d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase /** 5740d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * Sets the position of the animation to the specified fraction. This fraction should 5750d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * be between 0 and the total fraction of the animation, including any repetition. That is, 5760d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * a fraction of 0 will position the animation at the beginning, a value of 1 at the end, 577f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * and a value of 2 at the end of a reversing animator that repeats once. If 5780d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * the animation has not yet been started, then it will not advance forward after it is 5790d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * set to this fraction; it will simply set the fraction to this value and perform any 5800d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * appropriate actions based on that fraction. If the animation is already running, then 5810d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * setCurrentFraction() will set the current fraction to this value and continue 5825a5afe010d2f8fb7e8f00858b8a305b4745c0469Eino-Ville Talvala * playing from that point. {@link Animator.AnimatorListener} events are not called 583f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * due to changing the fraction; those events are only processed while the animation 584f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * is running. 5850d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * 586f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * @param fraction The fraction to which the animation is advanced or rewound. Values 587f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * outside the range of 0 to the maximum fraction for the animator will be clamped to 588f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * the correct range. 5890d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase */ 5900d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase public void setCurrentFraction(float fraction) { 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 592f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (fraction < 0) { 593f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase fraction = 0; 594f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 595f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase int iteration = (int) fraction; 596f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (fraction == 1) { 597f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase iteration -= 1; 598f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else if (fraction > 1) { 599f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (iteration < (mRepeatCount + 1) || mRepeatCount == INFINITE) { 600f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (mRepeatMode == REVERSE) { 601f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mPlayingBackwards = (iteration % 2) != 0; 602f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 603f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase fraction = fraction % 1f; 604f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else { 605f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase fraction = 1; 606f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase iteration -= 1; 607f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 608f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else { 609f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mPlayingBackwards = mReversing; 610f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 611f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mCurrentIteration = iteration; 612f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase long seekTime = (long) (mDuration * fraction); 613f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 614f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mStartTime = currentTime - seekTime; 615c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; // do not allow start time to be compensated for jank 6163618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 6170d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mSeekFraction = fraction; 618a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 619f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (mPlayingBackwards) { 620f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase fraction = 1f - fraction; 621f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 6220d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase animateValue(fraction); 623a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 625a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 627a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 628a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 629a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 630a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 631a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 632a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 6333618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mInitialized || !mStarted) { 634a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 635a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 636a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 637a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 638a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 639a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 640a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 642a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 643a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 644a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 645c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 646a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 647d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase return mUnscaledStartDelay; 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 653a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 656c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 658d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase this.mStartDelay = (long)(startDelay * sDurationScale); 659d21a9fe2d9a6cfe966fc7df3a8c37c172d7ac302Chet Haase mUnscaledStartDelay = startDelay; 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 66996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 67096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 67196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 6722b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * Note that this method should be called from the same thread that {@link #start()} is 6732b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * called in order to check the frame delay for that animation. A runtime exception will be 6742b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * thrown if the calling thread does not have a Looper. 6752b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 6793618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return AnimationHandler.getInstance().getFrameDelay(); 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 686a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 68996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 69096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 69196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 6922b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * Note that this method should be called from the same thread that {@link #start()} is 6932b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * called in order to have the new frame delay take effect on that animation. A runtime 6942b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * exception will be thrown if the calling thread does not have a Looper. 6952b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 6993618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler.getInstance().setFrameDelay(frameDelay); 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 7983060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 7993060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8003060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8013060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8023060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8033060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8043060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8053060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8063060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8073060421045d4d9e411797f91bb509824b03e33fbJim Miller 8083060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 83127c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 83227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 835e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 83827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 83927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 840a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 841a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 842a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 843a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 844a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 845a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 848430742f09063574271e6c4091de13b9b9e762514Chet Haase @Override 849e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 855b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 85953ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 864fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase * the case if PropertyValuesHolder objects were set on the ValueAnimator, then the evaluator 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 871a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 87517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private void notifyStartListeners() { 87617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (mListeners != null && !mStartListenersCalled) { 87717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase ArrayList<AnimatorListener> tmpListeners = 87817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 87917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase int numListeners = tmpListeners.size(); 88017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase for (int i = 0; i < numListeners; ++i) { 88117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase tmpListeners.get(i).onAnimationStart(this); 88217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = true; 88517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 88617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 8902970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 8912970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 8922970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 8932970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 8942970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 8952970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 8962970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9012970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9022970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9033060421045d4d9e411797f91bb509824b03e33fbJim Miller } 904f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = playBackwards; 9052970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase mPlayingBackwards = playBackwards; 906f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (playBackwards && mSeekFraction != -1) { 907f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (mSeekFraction == 0 && mCurrentIteration == 0) { 908f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase // special case: reversing from seek-to-0 should act as if not seeked at all 909f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mSeekFraction = 0; 910f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else if (mRepeatCount == INFINITE) { 911f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mSeekFraction = 1 - (mSeekFraction % 1); 912f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else { 913f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mSeekFraction = 1 + mRepeatCount - (mCurrentIteration + mSeekFraction); 914f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 915f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mCurrentIteration = (int) mSeekFraction; 916f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mSeekFraction = mSeekFraction % 1; 917f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 918f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (mCurrentIteration > 0 && mRepeatMode == REVERSE && 919f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase (mCurrentIteration < (mRepeatCount + 1) || mRepeatCount == INFINITE)) { 920f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase // if we were seeked to some other iteration in a reversing animator, 921f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase // figure out the correct direction to start playing based on the iteration 922f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (playBackwards) { 923f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mPlayingBackwards = (mCurrentIteration % 2) == 0; 924f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else { 925f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mPlayingBackwards = (mCurrentIteration % 2) != 0; 926f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 927f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 9288b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 9298aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPaused = false; 9303618d30f8ab6018025b11869676b309c3b4961cfDoris Liu mRunning = false; 9313dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu mAnimationEndRequested = false; 9327a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown updateScaledDuration(); // in case the scale factor has changed since creation time 9333618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler animationHandler = AnimationHandler.getInstance(); 9343618d30f8ab6018025b11869676b309c3b4961cfDoris Liu animationHandler.addAnimationFrameCallback(this, mStartDelay); 935a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 936a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 941a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 943a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9443618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (Looper.myLooper() == null) { 9453618d30f8ab6018025b11869676b309c3b4961cfDoris Liu throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9463618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 9473dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 9483dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu // If end has already been requested, through a previous end() or cancel() call, no-op 9493dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu // until animation starts again. 9503dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu if (mAnimationEndRequested) { 9513dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu return; 9523dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu } 9533dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 9542970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9552970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9563618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // Only notify listeners if the animator has actually started 9573618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if ((mStarted || mRunning) && mListeners != null) { 9583618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 9593618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // If it's not yet running, then start listeners weren't called. Call them now. 9603618d30f8ab6018025b11869676b309c3b4961cfDoris Liu notifyStartListeners(); 9613618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 9623618d30f8ab6018025b11869676b309c3b4961cfDoris Liu ArrayList<AnimatorListener> tmpListeners = 9633618d30f8ab6018025b11869676b309c3b4961cfDoris Liu (ArrayList<AnimatorListener>) mListeners.clone(); 9643618d30f8ab6018025b11869676b309c3b4961cfDoris Liu for (AnimatorListener listener : tmpListeners) { 9653618d30f8ab6018025b11869676b309c3b4961cfDoris Liu listener.onAnimationCancel(this); 9667dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 9672970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 9683618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 9693618d30f8ab6018025b11869676b309c3b4961cfDoris Liu 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 9743618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (Looper.myLooper() == null) { 9753618d30f8ab6018025b11869676b309c3b4961cfDoris Liu throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9763618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 9773618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 9793618d30f8ab6018025b11869676b309c3b4961cfDoris Liu startAnimation(); 98017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStarted = true; 981add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 982add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 983e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 9844dd176864310e1d9519bf6b88918913e9927984fChet Haase animateValue(mPlayingBackwards ? 0f : 1f); 9853618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 9898aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase public void resume() { 9908aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPaused) { 9918aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = true; 9928aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 9938aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase super.resume(); 9948aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 9958aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 9968aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase @Override 9978aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase public void pause() { 9988aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase boolean previouslyPaused = mPaused; 9998aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase super.pause(); 10008aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (!previouslyPaused && mPaused) { 10018aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPauseTime = -1; 10028aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = false; 10038aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10048aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10058aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 10068aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase @Override 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 10083618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return mRunning; 10098b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 10108b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 10118b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 10128b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 10138b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10237bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui @Override 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 10263618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mRunning) { 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 1030a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1031c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; // do not allow start time to be compensated for jank 1032f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = !mReversing; 1033f43fb2a57f152b5760d8792fec26f36d46b23817Chet Haase } else if (mStarted) { 1034f43fb2a57f152b5760d8792fec26f36d46b23817Chet Haase end(); 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 10417bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui * @hide 10427bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui */ 10437bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui @Override 10447bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui public boolean canReverse() { 10457bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui return true; 10467bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui } 10477bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui 10487bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui /** 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10523dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu private void endAnimation() { 10533dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu if (mAnimationEndRequested) { 10543dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu return; 10553dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu } 10563618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler handler = AnimationHandler.getInstance(); 10573618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.removeCallback(this); 10583dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 10593dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu mAnimationEndRequested = true; 10608aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPaused = false; 106117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 106217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 106317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 106417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 106517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 10687c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 10697c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 10707c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 10738b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1074b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 107517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = false; 1076caf46486f54cdc899e383dfc776ec33a81b089a1Chet Haase mPlayingBackwards = false; 1077f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = false; 1078f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mCurrentIteration = 0; 10799b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) { 10809b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, getNameForTrace(), 10819b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase System.identityHashCode(this)); 10829b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase } 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10893618d30f8ab6018025b11869676b309c3b4961cfDoris Liu private void startAnimation() { 10909b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) { 10919b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, getNameForTrace(), 10929b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase System.identityHashCode(this)); 10939b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase } 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 10953618d30f8ab6018025b11869676b309c3b4961cfDoris Liu mRunning = true; 10963618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mListeners != null) { 109717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1102fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase * Returns the name of this animator for debugging purposes. 1103fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase */ 1104fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase String getNameForTrace() { 1105fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase return "animator"; 1106fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase } 1107fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1109c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * Applies an adjustment to the animation to compensate for jank between when 1110c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * the animation first ran and when the frame was drawn. 11113618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * @hide 1112c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown */ 11133618d30f8ab6018025b11869676b309c3b4961cfDoris Liu public void commitAnimationFrame(long frameTime) { 1114c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown if (!mStartTimeCommitted) { 1115c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; 11163618d30f8ab6018025b11869676b309c3b4961cfDoris Liu long adjustment = frameTime - mLastFrameTime; 11173618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (adjustment > 0) { 1118c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTime += adjustment; 1119c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown if (DEBUG) { 1120c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown Log.d(TAG, "Adjusted start time by " + adjustment + " ms: " + toString()); 1121c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1122c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1123c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1124c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1125c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown 1126c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown /** 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 11363618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * <code>repeatCount</code> has been exceeded and the animation should be ended. 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 11383618d30f8ab6018025b11869676b309c3b4961cfDoris Liu boolean animateBasedOnTime(long currentTime) { 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 11403618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mRunning) { 114170d4ba15b1f0c1133c5aabc86de828b41e482fffChet Haase float fraction = mDuration > 0 ? (float)(currentTime - mStartTime) / mDuration : 1f; 1142f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (mDuration == 0 && mRepeatCount != INFINITE) { 1143f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase // Skip to the end 1144f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mCurrentIteration = mRepeatCount; 1145f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase if (!mReversing) { 1146f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mPlayingBackwards = false; 1147f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 1148f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1150d15e94f0309a91d5a75d03a9ae165121e7f24907Chet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 11537c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = mListeners.size(); 11547c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 11557c608f25d494c8a0a671e7373efbb47ca635367eChet Haase mListeners.get(i).onAnimationRepeat(this); 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 115918772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy mPlayingBackwards = !mPlayingBackwards; 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1161f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mCurrentIteration += (int) fraction; 1162730666858692ea396f5ad779654b5d86ff90b6caChet Haase fraction = fraction % 1f; 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1164c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown // Note: We do not need to update the value of mStartTimeCommitted here 1165c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown // since we just added a duration offset. 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 118020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Processes a frame of the animation, adjusting the start time if needed. 118120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * 118220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @param frameTime The frame time. 118320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @return true if the animation has ended. 11843618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * @hide 118520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown */ 11863618d30f8ab6018025b11869676b309c3b4961cfDoris Liu public final void doAnimationFrame(long frameTime) { 11873618d30f8ab6018025b11869676b309c3b4961cfDoris Liu mLastFrameTime = frameTime; 11883618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler handler = AnimationHandler.getInstance(); 11893618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 11903618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // First frame 11913618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.addOneShotCommitCallback(this); 11923618d30f8ab6018025b11869676b309c3b4961cfDoris Liu startAnimation(); 11930d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase if (mSeekFraction < 0) { 119420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime; 119520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } else { 11960d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase long seekTime = (long) (mDuration * mSeekFraction); 11970d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mStartTime = frameTime - seekTime; 11980d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mSeekFraction = -1; 119920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 1200c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = false; // allow start time to be compensated for jank 120120c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 12028aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPaused) { 12038aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPauseTime < 0) { 12048aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPauseTime = frameTime; 12058aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 12063618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return; 12078aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } else if (mResumed) { 12088aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = false; 12098aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPauseTime > 0) { 12108aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase // Offset by the duration that the animation was paused 12118aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mStartTime += (frameTime - mPauseTime); 1212c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = false; // allow start time to be compensated for jank 12138aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 12143618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.addOneShotCommitCallback(this); 12158aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 121620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // The frame time might be before the start time during the first frame of 121720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // an animation. The "current time" must always be on or after the start 121820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // time to avoid animating frames at negative time intervals. In practice, this 121920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // is very rare and only happens when seeking backwards. 122020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final long currentTime = Math.max(frameTime, mStartTime); 12213618d30f8ab6018025b11869676b309c3b4961cfDoris Liu boolean finished = animateBasedOnTime(currentTime); 12223618d30f8ab6018025b11869676b309c3b4961cfDoris Liu 12233618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (finished) { 12243618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 12253618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 122620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 122720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 122820c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown /** 1229a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1230a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1231a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1232a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1233a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1234a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1235a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1236a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1237a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1238a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1250c615c6fc9caca76cd96998f86e1f1e6393aeadbbTor Norbye @CallSuper 1251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1253a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1254a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1255a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1256a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1257a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1258a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1259a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1260a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1261a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1262a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1263a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1264a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1267a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1269a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1270d422dc358f0100106dc07d7b903201eb9b043b11Yigit Boyar anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(mUpdateListeners); 1271a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 12720d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase anim.mSeekFraction = -1; 1273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1274f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase anim.mReversing = false; 1275a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1276a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 127726e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mStarted = false; 127826e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mRunning = false; 127926e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mPaused = false; 128026e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mResumed = false; 128126e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mStartListenersCalled = false; 1282e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mStartTime = 0; 1283e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mStartTimeCommitted = false; 12843dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu anim.mAnimationEndRequested = false; 1285e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mPauseTime = 0; 12863618d30f8ab6018025b11869676b309c3b4961cfDoris Liu anim.mLastFrameTime = 0; 1287e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mCurrentFraction = 0; 128826e9a19900bae56b012425a114685d42dfa2fde1ztenghui 1289a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1290a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1291a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1292a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1293a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1294a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1295d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1296d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1297d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1298a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1299a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1300a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1301a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1302a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1303a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1304a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1305a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1306a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1307a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1308a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1309a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1310a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1311a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1312a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1313a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1314a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1315a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1316a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1317a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1318599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1319599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1320599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1321599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 13229c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 13239c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1324599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1325599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1326599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1327599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 13283618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return AnimationHandler.getAnimationCount(); 13298901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1330e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1331e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1332e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1333e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1334e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1335e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1336e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1337e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1338e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1339e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1340e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1341d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck 1342d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck /** 1343d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>Whether or not the ValueAnimator is allowed to run asynchronously off of 1344d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * the UI thread. This is a hint that informs the ValueAnimator that it is 1345d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * OK to run the animation off-thread, however ValueAnimator may decide 1346d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * that it must run the animation on the UI thread anyway. For example if there 1347d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * is an {@link AnimatorUpdateListener} the animation will run on the UI thread, 1348d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * regardless of the value of this hint.</p> 1349d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * 1350d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>Regardless of whether or not the animation runs asynchronously, all 1351d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * listener callbacks will be called on the UI thread.</p> 1352d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * 1353d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>To be able to use this hint the following must be true:</p> 1354d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <ol> 1355d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>{@link #getAnimatedFraction()} is not needed (it will return undefined values).</li> 1356d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>The animator is immutable while {@link #isStarted()} is true. Requests 1357d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * to change values, duration, delay, etc... may be ignored.</li> 1358d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>Lifecycle callback events may be asynchronous. Events such as 1359d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * {@link Animator.AnimatorListener#onAnimationEnd(Animator)} or 1360d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * {@link Animator.AnimatorListener#onAnimationRepeat(Animator)} may end up delayed 1361d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * as they must be posted back to the UI thread, and any actions performed 1362d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * by those callbacks (such as starting new animations) will not happen 1363d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * in the same frame.</li> 1364d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>State change requests ({@link #cancel()}, {@link #end()}, {@link #reverse()}, etc...) 1365d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * may be asynchronous. It is guaranteed that all state changes that are 1366d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * performed on the UI thread in the same frame will be applied as a single 1367d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * atomic update, however that frame may be the current frame, 1368d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * the next frame, or some future frame. This will also impact the observed 1369d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * state of the Animator. For example, {@link #isStarted()} may still return true 1370d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * after a call to {@link #end()}. Using the lifecycle callbacks is preferred over 1371d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * queries to {@link #isStarted()}, {@link #isRunning()}, and {@link #isPaused()} 1372d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * for this reason.</li> 1373d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * </ol> 1374d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * @hide 1375d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck */ 1376c01bd1167a1b08d59557f214ddc48cf24d3b8d0aJohn Reck @Override 1377d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck public void setAllowRunningAsynchronously(boolean mayRunAsync) { 1378d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck // It is up to subclasses to support this, if they can. 1379d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck } 1380599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1381