ValueAnimator.java revision 66d48566537bd2d037e1eff919542731b93fa85c
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 /** 129f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * Flag to indicate whether this animator is playing in reverse mode, specifically 130f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * by being started or interrupted by a call to reverse(). This flag is different than 131f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * mPlayingBackwards, which indicates merely whether the current iteration of the 132f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * animator is playing in reverse. It is used in corner cases to determine proper end 133f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * behavior. 134f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase */ 135f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase private boolean mReversing; 136f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase 137f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase /** 138fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * Tracks the overall fraction of the animation, ranging from 0 to mRepeatCount + 1 139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 140fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private float mOverallFraction = 0f; 141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 143a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Tracks current elapsed/eased fraction, for querying in getAnimatedFraction(). 144fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * This is calculated by interpolating the fraction (range: [0, 1]) in the current iteration. 145a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 146a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase private float mCurrentFraction = 0f; 147a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 148a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1493618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * Tracks the time (in milliseconds) when the last frame arrived. 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1513618d30f8ab6018025b11869676b309c3b4961cfDoris Liu private long mLastFrameTime = 0; 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 154b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Additional playing state to indicate whether an animator has been start()'d. There is 155b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * some lag between a call to start() and the first animation frame. We should still note 156b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * that the animation has been started, even if it's first animation frame has not yet 157b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * happened, and reflect that state in isRunning(). 158b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * Note that delayed animations are different: they are not started until their first 159b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase * animation frame, which occurs after their delay elapses. 160b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase */ 1618b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase private boolean mRunning = false; 1628b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 1638b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase /** 1648b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * Additional playing state to indicate whether an animator has been start()'d, whether or 1658b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase * not there is a nonzero startDelay. 1668b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase */ 167b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase private boolean mStarted = false; 168b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase 169b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase /** 1708aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase * Tracks whether we've notified listeners of the onAnimationStart() event. This can be 17117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * complex to keep track of since we notify listeners at different times depending on 17217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase * startDelay and whether start() was called before end(). 17317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase */ 17417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private boolean mStartListenersCalled = false; 17517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 17617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase /** 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1823dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu /** 1833dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu * Flag that tracks whether animation has been requested to end. 1843dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu */ 1853dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu private boolean mAnimationEndRequested = false; 1863dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 192fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private long mDuration = 300; 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 194fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // The amount of time in ms to delay starting the animation after start() is called. Note 195fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // that this start delay is unscaled. When there is a duration scale set on the animator, the 196fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // scaling factor will be applied to this delay. 197fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private long mStartDelay = 0; 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 215e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 220d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 221a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 228a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 229a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 230a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 231a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 232a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 233a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 235a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 236a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 238a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 239a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 240a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 241a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 242a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 243a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 244a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 245a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 246a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 247a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 248a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 249a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 250a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 251a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 252a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 253c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase /** 254c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase * @hide 255c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase */ 256c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase public static void setDurationScale(float durationScale) { 257c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase sDurationScale = durationScale; 258c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase } 259c38fa1f63674971f9ac6ced1a449fb81026b62f7Chet Haase 260a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 261ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown * @hide 262ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown */ 263ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown public static float getDurationScale() { 264ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown return sDurationScale; 265ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown } 266ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown 267ff7e6ef4f18ff94a9836492ff3ccd1ba7f6804f3Jeff Brown /** 268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 2692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * use internally; the factory methods which take parameters are more generally 270a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 271a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 272a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 274a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 275a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 2762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 2812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 282a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 2832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 2842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 28541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 2862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofInt(int... values) { 2872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 2882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setIntValues(values); 2892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 2902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 2912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 2931ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * Constructs and returns a ValueAnimator that animates between color values. A single 2941ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * value implies that that value is the one being animated to. However, this is not typically 2951ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * useful in a ValueAnimator object because there is no way for the object to determine the 2961ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * starting value for the animation (unlike ObjectAnimator, which can derive that value 2971ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * from the target object and property being animated). Therefore, there should typically 2981ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * be two or more values. 2991ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * 3001ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * @param values A set of values that the animation will animate between over time. 3011ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount * @return A ValueAnimator object that is set up to animate between the given values. 3021ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount */ 3031ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount public static ValueAnimator ofArgb(int... values) { 3041ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount ValueAnimator anim = new ValueAnimator(); 3051ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount anim.setIntValues(values); 3061ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount anim.setEvaluator(ArgbEvaluator.getInstance()); 3071ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount return anim; 3081ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount } 3091ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount 3101ffb280a7d2c70cc16d709c685f5d31fdb86b5e4George Mount /** 3112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 3122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofFloat(float... values) { 3222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setFloatValues(values); 3242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between the values 3292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * specified in the PropertyValuesHolder objects. 3302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 3322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between over time. 3332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 3362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setValues(values); 3382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 3422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3442794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 3492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 3502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * to perform that interpolation. 3512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 3532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 3542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value. 3552794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 3572794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 3592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ValueAnimator anim = new ValueAnimator(); 3602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setObjectValues(values); 3612794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setEvaluator(evaluator); 3622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 3632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3642794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3652794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3662794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets int values that will be animated between. A single 3672794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3682794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3692794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3702794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 3722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 3742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 3752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 3762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 3772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 3782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 3792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setIntValues(int... values) { 3802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 3812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 3822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3832794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 38418772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofInt("", values)); 3852794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 3862794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 3872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setIntValues(values); 3882794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3892794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 3902794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 3912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 3922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 3932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 3942794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets float values that will be animated between. A single 3952794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 3962794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 3972794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 3982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 3992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values A set of values that the animation will animate between over time. 4062794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setFloatValues(float... values) { 4082794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4092794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 41041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 4112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 41218772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofFloat("", values)); 4132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setFloatValues(values); 4162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4182794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 4192794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4202794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase 4212794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase /** 4222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the values to animate between for this animation. A single 4232794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value implies that that value is the one being animated to. However, this is not typically 4242794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 4252794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 4262794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * from the target object and property being animated). Therefore, there should typically 4272794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * be two or more values. 4282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 4302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 4312794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * of those objects.</p> 4322794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 4342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 4352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * primitive types specified in the other setValues() methods.</p> 4362794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * 4372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @param values The set of values to animate between. 4382794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase */ 4392794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setObjectValues(Object... values) { 4402794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (values == null || values.length == 0) { 4412794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return; 4422794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4432794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase if (mValues == null || mValues.length == 0) { 44418772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy setValues(PropertyValuesHolder.ofObject("", null, values)); 4452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } else { 4462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 4472794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase valuesHolder.setObjectValues(values); 4482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase } 4492794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase // New property/values/target should cause re-initialization prior to starting 4502794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase mInitialized = false; 451a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 452a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 453a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 454a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 455f76a50ce8fdc6aea22cabc77b2977a1a15a79630Ken Wakasa * by the constructors of ValueAnimator that take a list of values. But a ValueAnimator can 456a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 457a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 458a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 459a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 460a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 461a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 462a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 463a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 464a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 465a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 46618772ea228f3d292629c4f0b5f6392d047e0530dRomain Guy PropertyValuesHolder valuesHolder = values[i]; 467a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 468a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4690e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4700e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 471a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 472a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 473a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 474a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 475a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 494a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 495c615c6fc9caca76cd96998f86e1f1e6393aeadbbTor Norbye @CallSuper 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5072794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 50927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param duration The length of the animation, in milliseconds. This value cannot 51027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * be negative. 5112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @return ValueAnimator The object called with setDuration(). This return 5122794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * value makes it easier to compose statements together that construct and then set the 5132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 515c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 5162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ValueAnimator setDuration(long duration) { 51727c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase if (duration < 0) { 51827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase throw new IllegalArgumentException("Animators cannot have negative duration: " + 51927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase duration); 52027c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } 521fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mDuration = duration; 5222794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return this; 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 525fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private long getScaledDuration() { 526fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (long)(mDuration * sDurationScale); 5277a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown } 5287a08fe0e09c9bd5b66049738617cc9972651bf5bJeff Brown 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 5302794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 533a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 534c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 536fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return mDuration; 537a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 538a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 5391309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu @Override 5401309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu public long getTotalDuration() { 5411309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu if (mRepeatCount == INFINITE) { 5421309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu return DURATION_INFINITE; 5431309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } else { 544fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return mStartDelay + (mDuration * (mRepeatCount + 1)); 5451309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } 5461309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu } 5471309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu 5481309914ebf21e705fc59d7d44014124d8a21a2d2Doris Liu /** 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 559fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu float fraction = mDuration > 0 ? (float) playTime / mDuration : 1; 5600d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase setCurrentFraction(fraction); 5610d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase } 5620d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase 5630d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase /** 5640d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * Sets the position of the animation to the specified fraction. This fraction should 5650d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * be between 0 and the total fraction of the animation, including any repetition. That is, 5660d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * a fraction of 0 will position the animation at the beginning, a value of 1 at the end, 567f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * and a value of 2 at the end of a reversing animator that repeats once. If 5680d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * the animation has not yet been started, then it will not advance forward after it is 5690d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * set to this fraction; it will simply set the fraction to this value and perform any 5700d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * appropriate actions based on that fraction. If the animation is already running, then 5710d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * setCurrentFraction() will set the current fraction to this value and continue 5725a5afe010d2f8fb7e8f00858b8a305b4745c0469Eino-Ville Talvala * playing from that point. {@link Animator.AnimatorListener} events are not called 573f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * due to changing the fraction; those events are only processed while the animation 574f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * is running. 5750d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase * 576f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * @param fraction The fraction to which the animation is advanced or rewound. Values 577f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * outside the range of 0 to the maximum fraction for the animator will be clamped to 578f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase * the correct range. 5790d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase */ 5800d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase public void setCurrentFraction(float fraction) { 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 582fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu fraction = clampFraction(fraction); 583fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu long seekTime = (long) (getScaledDuration() * fraction); 584f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 585f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mStartTime = currentTime - seekTime; 586c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; // do not allow start time to be compensated for jank 5873618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 5880d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mSeekFraction = fraction; 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 590fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mOverallFraction = fraction; 591fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu final float currentIterationFraction = getCurrentIterationFraction(fraction); 592fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu animateValue(currentIterationFraction); 593fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 594fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu 595fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu /** 596fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * Calculates current iteration based on the overall fraction. The overall fraction will be 597fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * in the range of [0, mRepeatCount + 1]. Both current iteration and fraction in the current 598fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * iteration can be derived from it. 599fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu */ 600fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private int getCurrentIteration(float fraction) { 601fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu fraction = clampFraction(fraction); 602fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // If the overall fraction is a positive integer, we consider the current iteration to be 603fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // complete. In other words, the fraction for the current iteration would be 1, and the 604fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // current iteration would be overall fraction - 1. 605fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu double iteration = Math.floor(fraction); 606fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (fraction == iteration && fraction > 0) { 607fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu iteration--; 608fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 609fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (int) iteration; 610fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 611fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu 612fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu /** 613fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * Calculates the fraction of the current iteration, taking into account whether the animation 614fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * should be played backwards. E.g. When the animation is played backwards in an iteration, 615fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * the fraction for that iteration will go from 1f to 0f. 616fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu */ 617fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private float getCurrentIterationFraction(float fraction) { 618fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu fraction = clampFraction(fraction); 619fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu int iteration = getCurrentIteration(fraction); 620fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu float currentFraction = fraction - iteration; 621fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return shouldPlayBackward(iteration) ? 1f - currentFraction : currentFraction; 622fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 623fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu 624fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu /** 625fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * Clamps fraction into the correct range: [0, mRepeatCount + 1]. If repeat count is infinite, 626fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * no upper bound will be set for the fraction. 627fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * 628fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * @param fraction fraction to be clamped 629fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * @return fraction clamped into the range of [0, mRepeatCount + 1] 630fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu */ 631fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private float clampFraction(float fraction) { 632fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (fraction < 0) { 633fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu fraction = 0; 634fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } else if (mRepeatCount != INFINITE) { 635fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu fraction = Math.min(fraction, mRepeatCount + 1); 636fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 637fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return fraction; 638fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 639fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu 640fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu /** 641fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * Calculates the direction of animation playing (i.e. forward or backward), based on 1) 642fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * whether the entire animation is being reversed, 2) repeat mode applied to the current 643fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu * iteration. 644fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu */ 645fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu private boolean shouldPlayBackward(int iteration) { 646fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (iteration > 0 && mRepeatMode == REVERSE && 647fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu (iteration < (mRepeatCount + 1) || mRepeatCount == INFINITE)) { 648fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // if we were seeked to some other iteration in a reversing animator, 649fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // figure out the correct direction to start playing based on the iteration 650fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (mReversing) { 651fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (iteration % 2) == 0; 652fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } else { 653fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (iteration % 2) != 0; 654fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 655fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } else { 656fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return mReversing; 657f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 6634365e5a13755ffbdb977586c90b8b515add599aaChet Haase * return a value of zero, unless the animation has has its play time set via 6644365e5a13755ffbdb977586c90b8b515add599aaChet Haase * {@link #setCurrentPlayTime(long)} or {@link #setCurrentFraction(float)}, in which case 6654365e5a13755ffbdb977586c90b8b515add599aaChet Haase * it will return the time that was set. 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 6704365e5a13755ffbdb977586c90b8b515add599aaChet Haase if (!mInitialized || (!mStarted && mSeekFraction < 0)) { 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 6734365e5a13755ffbdb977586c90b8b515add599aaChet Haase if (mSeekFraction >= 0) { 674fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (long) (mDuration * mSeekFraction); 6754365e5a13755ffbdb977586c90b8b515add599aaChet Haase } 676fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu float durationScale = sDurationScale == 0 ? 1 : sDurationScale; 677fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return (long) ((AnimationUtils.currentAnimationTimeMillis() - mStartTime) / durationScale); 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 685a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 686c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 688fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu return mStartDelay; 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 697c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown @Override 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 699fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mStartDelay = startDelay; 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 70996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 71096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 71196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 7122b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * Note that this method should be called from the same thread that {@link #start()} is 7132b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * called in order to check the frame delay for that animation. A runtime exception will be 7142b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * thrown if the calling thread does not have a Looper. 7152b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 7193618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return AnimationHandler.getInstance().getFrameDelay(); 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 72996e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * The frame delay may be ignored when the animation system uses an external timing 73096e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * source, such as the display refresh rate (vsync), to govern animations. 73196e942dabeeaaa9ab6df3a870668c6fe53d930daJeff Brown * 7322b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * Note that this method should be called from the same thread that {@link #start()} is 7332b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * called in order to have the new frame delay take effect on that animation. A runtime 7342b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * exception will be thrown if the calling thread does not have a Looper. 7352b2e2c8d252b33fa25ccba1e37322256cd44b3d5Doris Liu * 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 7393618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler.getInstance().setFrameDelay(frameDelay); 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 835a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 836a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 837a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8383060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8393060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8403060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8413060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8423060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8433060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8443060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8453060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8463060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8473060421045d4d9e411797f91bb509824b03e33fbJim Miller 8483060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 87127c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * @param value the interpolator to be used by this animation. A value of <code>null</code> 87227c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase * will result in linear interpolation. 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 875e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 87827c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase } else { 87927c1d4debb3848f5accd5673fffeeacad3e61648Chet Haase mInterpolator = new LinearInterpolator(); 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 882a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 886a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 888430742f09063574271e6c4091de13b9b9e762514Chet Haase @Override 889e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 891a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 893a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 894a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 895b2ab04ffb6894f399d5c9ceb15f64eb17b654426Chet Haase * The system will automatically assign a float or int evaluator based on the type 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 89953ee3316bcb3590ff156b3fd7108903c0817c35dChet Haase * For example, when running an animation on color values, the {@link ArgbEvaluator} 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 901a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 902a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 903a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 904fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase * the case if PropertyValuesHolder objects were set on the ValueAnimator, then the evaluator 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 908a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 909a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 910a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 911a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 912a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 913a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 914a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 91517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase private void notifyStartListeners() { 91617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (mListeners != null && !mStartListenersCalled) { 91717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase ArrayList<AnimatorListener> tmpListeners = 91817cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 91917cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase int numListeners = tmpListeners.size(); 92017cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase for (int i = 0; i < numListeners; ++i) { 92117cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase tmpListeners.get(i).onAnimationStart(this); 92217cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 92317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 92417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = true; 92517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 92617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase 927a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 928a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 929a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 9302970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * to true if called from the reverse() method. 9312970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * 9322970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * <p>The animation started by calling this method will be run on the thread that called 9332970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this method. This thread should have a Looper on it (a runtime exception will be thrown if 9342970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * this is not the case). Also, if the animation will animate 9352970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * properties of objects in the view hierarchy, then the calling thread should be the UI 9362970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase * thread for that view hierarchy.</p> 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 9412970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase if (Looper.myLooper() == null) { 9422970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9433060421045d4d9e411797f91bb509824b03e33fbJim Miller } 944f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = playBackwards; 945fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // Special case: reversing from seek-to-0 should act as if not seeked at all. 946fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (playBackwards && mSeekFraction != -1 && mSeekFraction != 0) { 947fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (mRepeatCount == INFINITE) { 948fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // Calculate the fraction of the current iteration. 949fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu float fraction = (float) (mSeekFraction - Math.floor(mSeekFraction)); 950fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mSeekFraction = 1 - fraction; 951f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } else { 952fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mSeekFraction = 1 + mRepeatCount - mSeekFraction; 953f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 954f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase } 9558b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mStarted = true; 9568aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPaused = false; 9573618d30f8ab6018025b11869676b309c3b4961cfDoris Liu mRunning = false; 9583618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler animationHandler = AnimationHandler.getInstance(); 959fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu animationHandler.addAnimationFrameCallback(this, (long) (mStartDelay * sDurationScale)); 960f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu 961f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu if (mStartDelay == 0) { 962f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu // If there's no start delay, init the animation and notify start listeners right away 963fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // to be consistent with the previous behavior. Otherwise, postpone this until the first 964fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // frame after the start delay. 965f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu startAnimation(); 966f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu setCurrentFraction(mSeekFraction == -1 ? 0 : mSeekFraction); 967f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu } 968a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 9773618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (Looper.myLooper() == null) { 9783618d30f8ab6018025b11869676b309c3b4961cfDoris Liu throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 9793618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 9803dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 9813dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu // If end has already been requested, through a previous end() or cancel() call, no-op 9823dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu // until animation starts again. 9833dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu if (mAnimationEndRequested) { 9843dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu return; 9853dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu } 9863dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 9872970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // Only cancel if the animation is actually running or has been started and is about 9882970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase // to run 9893618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // Only notify listeners if the animator has actually started 9903618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if ((mStarted || mRunning) && mListeners != null) { 9913618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 9923618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // If it's not yet running, then start listeners weren't called. Call them now. 9933618d30f8ab6018025b11869676b309c3b4961cfDoris Liu notifyStartListeners(); 9943618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 9953618d30f8ab6018025b11869676b309c3b4961cfDoris Liu ArrayList<AnimatorListener> tmpListeners = 9963618d30f8ab6018025b11869676b309c3b4961cfDoris Liu (ArrayList<AnimatorListener>) mListeners.clone(); 9973618d30f8ab6018025b11869676b309c3b4961cfDoris Liu for (AnimatorListener listener : tmpListeners) { 9983618d30f8ab6018025b11869676b309c3b4961cfDoris Liu listener.onAnimationCancel(this); 9997dfacdb1c820f955cb3cd6032ff5fbc2dd7d9df5Chet Haase } 10002970c499388b4dcd1232cd622a9b80b395eeb2b4Chet Haase } 10013618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 10023618d30f8ab6018025b11869676b309c3b4961cfDoris Liu 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 10073618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (Looper.myLooper() == null) { 10083618d30f8ab6018025b11869676b309c3b4961cfDoris Liu throw new AndroidRuntimeException("Animators may only be run on Looper threads"); 10093618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 10103618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (!mRunning) { 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 10123618d30f8ab6018025b11869676b309c3b4961cfDoris Liu startAnimation(); 101317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStarted = true; 1014add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase } else if (!mInitialized) { 1015add6577a0196258e5a48c5deefcdb12e05c935b3Chet Haase initAnimation(); 1016e2ab7ccd385cdb6517955c719e1d2b49771bedb6Chet Haase } 1017fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu animateValue(shouldPlayBackward(mRepeatCount) ? 0f : 1f); 10183618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 10228aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase public void resume() { 10238aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPaused) { 10248aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = true; 10258aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10268aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase super.resume(); 10278aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10288aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 10298aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase @Override 10308aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase public void pause() { 10318aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase boolean previouslyPaused = mPaused; 10328aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase super.pause(); 10338aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (!previouslyPaused && mPaused) { 10348aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPauseTime = -1; 10358aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = false; 10368aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10378aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 10388aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase 10398aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase @Override 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 10413618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return mRunning; 10428b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase } 10438b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase 10448b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase @Override 10458b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase public boolean isStarted() { 10468b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase return mStarted; 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10567bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui @Override 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 10583618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mRunning) { 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1061fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu long timeLeft = getScaledDuration() - currentPlayTime; 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1063c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; // do not allow start time to be compensated for jank 1064f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = !mReversing; 1065f43fb2a57f152b5760d8792fec26f36d46b23817Chet Haase } else if (mStarted) { 1066f43fb2a57f152b5760d8792fec26f36d46b23817Chet Haase end(); 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 10737bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui * @hide 10747bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui */ 10757bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui @Override 10767bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui public boolean canReverse() { 10777bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui return true; 10787bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui } 10797bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui 10807bc6a3f023ca3e1dde91fc97b6036dee3ba538a2ztenghui /** 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 10843dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu private void endAnimation() { 10853dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu if (mAnimationEndRequested) { 10863dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu return; 10873dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu } 10883618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler handler = AnimationHandler.getInstance(); 10893618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.removeCallback(this); 10903dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu 10913dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu mAnimationEndRequested = true; 10928aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPaused = false; 109317cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if ((mStarted || mRunning) && mListeners != null) { 109417cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase if (!mRunning) { 109517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase // If it's not yet running, then start listeners weren't called. Call them now. 109617cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 109717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase } 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 11007c608f25d494c8a0a671e7373efbb47ca635367eChet Haase int numListeners = tmpListeners.size(); 11017c608f25d494c8a0a671e7373efbb47ca635367eChet Haase for (int i = 0; i < numListeners; ++i) { 11027c608f25d494c8a0a671e7373efbb47ca635367eChet Haase tmpListeners.get(i).onAnimationEnd(this); 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 11058b699792b677bd4dd8442b32641ac09d48fdd79cChet Haase mRunning = false; 1106b8f574a165bf6ec5b316734b367ac274ded4809bChet Haase mStarted = false; 110717cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase mStartListenersCalled = false; 1108f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase mReversing = false; 1109f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu mLastFrameTime = 0; 11109b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) { 11119b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, getNameForTrace(), 11129b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase System.identityHashCode(this)); 11139b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase } 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 11203618d30f8ab6018025b11869676b309c3b4961cfDoris Liu private void startAnimation() { 11219b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) { 11229b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, getNameForTrace(), 11239b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase System.identityHashCode(this)); 11249b80ca81a8cc33067d858c52c7acbef9d8bdaf6aChet Haase } 112566d48566537bd2d037e1eff919542731b93fa85cDoris Liu 112666d48566537bd2d037e1eff919542731b93fa85cDoris Liu mAnimationEndRequested = false; 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 11283618d30f8ab6018025b11869676b309c3b4961cfDoris Liu mRunning = true; 1129fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (mSeekFraction >= 0) { 1130fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mOverallFraction = mSeekFraction; 1131fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } else { 1132fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mOverallFraction = 0f; 1133fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } 11343618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mListeners != null) { 113517cf42cb85c22b50ecfa8d21efc992f99d20fc45Chet Haase notifyStartListeners(); 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1140fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase * Returns the name of this animator for debugging purposes. 1141fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase */ 1142fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase String getNameForTrace() { 1143fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase return "animator"; 1144fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase } 1145fdd3ad7018ebb054c0288b8cd92739703a973181Chet Haase 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1147c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * Applies an adjustment to the animation to compensate for jank between when 1148c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown * the animation first ran and when the frame was drawn. 11493618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * @hide 1150c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown */ 11513618d30f8ab6018025b11869676b309c3b4961cfDoris Liu public void commitAnimationFrame(long frameTime) { 1152c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown if (!mStartTimeCommitted) { 1153c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = true; 11543618d30f8ab6018025b11869676b309c3b4961cfDoris Liu long adjustment = frameTime - mLastFrameTime; 11553618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (adjustment > 0) { 1156c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTime += adjustment; 1157c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown if (DEBUG) { 1158c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown Log.d(TAG, "Adjusted start time by " + adjustment + " ms: " + toString()); 1159c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1160c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1161c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1162c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown } 1163c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown 1164c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown /** 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 11743618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * <code>repeatCount</code> has been exceeded and the animation should be ended. 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 11763618d30f8ab6018025b11869676b309c3b4961cfDoris Liu boolean animateBasedOnTime(long currentTime) { 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 11783618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (mRunning) { 1179fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu final float fraction = getScaledDuration() > 0 ? 1180fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu (float)(currentTime - mStartTime) / getScaledDuration() : 1f; 1181fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu final float lastFraction = mOverallFraction; 1182fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu final boolean newIteration = (int) fraction > (int) lastFraction; 1183fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu final boolean lastIterationFinished = (fraction >= mRepeatCount + 1) && 1184fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu (mRepeatCount != INFINITE); 1185fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (newIteration && !lastIterationFinished) { 1186fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu // Time to repeat 1187fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu if (mListeners != null) { 1188fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu int numListeners = mListeners.size(); 1189fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu for (int i = 0; i < numListeners; ++i) { 1190fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mListeners.get(i).onAnimationRepeat(this); 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1193fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu } else if (lastIterationFinished) { 1194fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu done = true; 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1196fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu mOverallFraction = clampFraction(fraction); 1197fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu float currentIterationFraction = getCurrentIterationFraction(mOverallFraction); 1198fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu animateValue(currentIterationFraction); 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 120420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * Processes a frame of the animation, adjusting the start time if needed. 120520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * 120620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @param frameTime The frame time. 120720c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown * @return true if the animation has ended. 12083618d30f8ab6018025b11869676b309c3b4961cfDoris Liu * @hide 120920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown */ 12103618d30f8ab6018025b11869676b309c3b4961cfDoris Liu public final void doAnimationFrame(long frameTime) { 12113618d30f8ab6018025b11869676b309c3b4961cfDoris Liu AnimationHandler handler = AnimationHandler.getInstance(); 1212f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu if (mLastFrameTime == 0) { 12133618d30f8ab6018025b11869676b309c3b4961cfDoris Liu // First frame 12143618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.addOneShotCommitCallback(this); 1215f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu if (mStartDelay > 0) { 1216f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu startAnimation(); 1217f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu } 12180d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase if (mSeekFraction < 0) { 121920c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown mStartTime = frameTime; 122020c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } else { 1221fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu long seekTime = (long) (getScaledDuration() * mSeekFraction); 12220d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mStartTime = frameTime - seekTime; 12230d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase mSeekFraction = -1; 122420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 1225c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = false; // allow start time to be compensated for jank 122620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 1227f57bfe2fefc87fdb1dcc27b0f4b3a11996c15da2Doris Liu mLastFrameTime = frameTime; 12288aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPaused) { 12298aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPauseTime < 0) { 12308aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mPauseTime = frameTime; 12318aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 12323618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return; 12338aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } else if (mResumed) { 12348aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mResumed = false; 12358aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase if (mPauseTime > 0) { 12368aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase // Offset by the duration that the animation was paused 12378aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase mStartTime += (frameTime - mPauseTime); 1238c42b28dda45347b05826dc3e04f5605a60867a63Jeff Brown mStartTimeCommitted = false; // allow start time to be compensated for jank 12398aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 12403618d30f8ab6018025b11869676b309c3b4961cfDoris Liu handler.addOneShotCommitCallback(this); 12418aa1ffb0ed292891030992c65df4e5dc8bd37524Chet Haase } 124220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // The frame time might be before the start time during the first frame of 124320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // an animation. The "current time" must always be on or after the start 124420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // time to avoid animating frames at negative time intervals. In practice, this 124520c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown // is very rare and only happens when seeking backwards. 124620c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown final long currentTime = Math.max(frameTime, mStartTime); 12473618d30f8ab6018025b11869676b309c3b4961cfDoris Liu boolean finished = animateBasedOnTime(currentTime); 12483618d30f8ab6018025b11869676b309c3b4961cfDoris Liu 12493618d30f8ab6018025b11869676b309c3b4961cfDoris Liu if (finished) { 12503618d30f8ab6018025b11869676b309c3b4961cfDoris Liu endAnimation(); 12513618d30f8ab6018025b11869676b309c3b4961cfDoris Liu } 125220c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown } 125320c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown 125420c4f87b2916d05e860d11568d7db6b2d340e909Jeff Brown /** 1255a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * Returns the current animation fraction, which is the elapsed/interpolated fraction used in 1256a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * the most recent frame update on the animation. 1257a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * 1258a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase * @return Elapsed/interpolated fraction of the animation. 1259a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase */ 1260a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase public float getAnimatedFraction() { 1261a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase return mCurrentFraction; 1262a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase } 1263a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase 1264a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase /** 1265a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1266a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1267a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1268a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1269a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1270a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1271a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1272a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1273a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1274a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1275a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1276c615c6fc9caca76cd96998f86e1f1e6393aeadbbTor Norbye @CallSuper 1277a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1278a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1279a00f3865f55c5c9cb74510ee2b239d101230133cChet Haase mCurrentFraction = fraction; 1280a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1281a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1282a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1283a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1284a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1285a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1286a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1287a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1288a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1289a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1290a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1291a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1292a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1293a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1294a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1295a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1296d422dc358f0100106dc07d7b903201eb9b043b11Yigit Boyar anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(mUpdateListeners); 1297a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 12980d1c27a713cb49de8f6f4fd0a129baa883153921Chet Haase anim.mSeekFraction = -1; 1299f4e3bab9253bba2c0086c35f4e5a1f7e41324876Chet Haase anim.mReversing = false; 1300a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 130126e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mStarted = false; 130226e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mRunning = false; 130326e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mPaused = false; 130426e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mResumed = false; 130526e9a19900bae56b012425a114685d42dfa2fde1ztenghui anim.mStartListenersCalled = false; 1306e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mStartTime = 0; 1307e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mStartTimeCommitted = false; 13083dbaae1ef4f221b3626810f4ba19eec068dd6304Doris Liu anim.mAnimationEndRequested = false; 1309e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mPauseTime = 0; 13103618d30f8ab6018025b11869676b309c3b4961cfDoris Liu anim.mLastFrameTime = 0; 1311fbe94ece70c8064e9d9d6f6c278bb9ab310911cdDoris Liu anim.mOverallFraction = 0; 1312e1b5c2b48a5cf1dd3712dde35b59bc18851b4018ztenghui anim.mCurrentFraction = 0; 131326e9a19900bae56b012425a114685d42dfa2fde1ztenghui 1314a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1315a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1316a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1317a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1318a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1319a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1320d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase PropertyValuesHolder newValuesHolder = oldValues[i].clone(); 1321d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValues[i] = newValuesHolder; 1322d4dd7025a1b356476e119de19a2e2cd5cf50d43cChet Haase anim.mValuesMap.put(newValuesHolder.getPropertyName(), newValuesHolder); 1323a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1324a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1325a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1326a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1327a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1328a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1329a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1330a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1331a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1332a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1333a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1334a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1335a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1336a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1337a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1338a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1339a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1340a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1341a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1342a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1343599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1344599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1345599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * Return the number of animations currently running. 1346599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 13479c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * Used by StrictMode internally to annotate violations. 13489c38dbeb1d183ecd48bbf5d18a39f5e0508a1223Jeff Brown * May be called on arbitrary threads! 1349599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * 1350599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * @hide 1351599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1352599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public static int getCurrentAnimationsCount() { 13533618d30f8ab6018025b11869676b309c3b4961cfDoris Liu return AnimationHandler.getAnimationCount(); 13548901ffab294934fc4899143f31bd58f3d58df225Patrick Dubroy } 1355e9140a72b1059574046a624b471b2c3a35806496Chet Haase 1356e9140a72b1059574046a624b471b2c3a35806496Chet Haase @Override 1357e9140a72b1059574046a624b471b2c3a35806496Chet Haase public String toString() { 1358e9140a72b1059574046a624b471b2c3a35806496Chet Haase String returnVal = "ValueAnimator@" + Integer.toHexString(hashCode()); 1359e9140a72b1059574046a624b471b2c3a35806496Chet Haase if (mValues != null) { 1360e9140a72b1059574046a624b471b2c3a35806496Chet Haase for (int i = 0; i < mValues.length; ++i) { 1361e9140a72b1059574046a624b471b2c3a35806496Chet Haase returnVal += "\n " + mValues[i].toString(); 1362e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1363e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1364e9140a72b1059574046a624b471b2c3a35806496Chet Haase return returnVal; 1365e9140a72b1059574046a624b471b2c3a35806496Chet Haase } 1366d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck 1367d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck /** 1368d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>Whether or not the ValueAnimator is allowed to run asynchronously off of 1369d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * the UI thread. This is a hint that informs the ValueAnimator that it is 1370d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * OK to run the animation off-thread, however ValueAnimator may decide 1371d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * that it must run the animation on the UI thread anyway. For example if there 1372d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * is an {@link AnimatorUpdateListener} the animation will run on the UI thread, 1373d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * regardless of the value of this hint.</p> 1374d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * 1375d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>Regardless of whether or not the animation runs asynchronously, all 1376d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * listener callbacks will be called on the UI thread.</p> 1377d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * 1378d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <p>To be able to use this hint the following must be true:</p> 1379d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <ol> 1380d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>{@link #getAnimatedFraction()} is not needed (it will return undefined values).</li> 1381d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>The animator is immutable while {@link #isStarted()} is true. Requests 1382d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * to change values, duration, delay, etc... may be ignored.</li> 1383d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>Lifecycle callback events may be asynchronous. Events such as 1384d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * {@link Animator.AnimatorListener#onAnimationEnd(Animator)} or 1385d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * {@link Animator.AnimatorListener#onAnimationRepeat(Animator)} may end up delayed 1386d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * as they must be posted back to the UI thread, and any actions performed 1387d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * by those callbacks (such as starting new animations) will not happen 1388d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * in the same frame.</li> 1389d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * <li>State change requests ({@link #cancel()}, {@link #end()}, {@link #reverse()}, etc...) 1390d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * may be asynchronous. It is guaranteed that all state changes that are 1391d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * performed on the UI thread in the same frame will be applied as a single 1392d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * atomic update, however that frame may be the current frame, 1393d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * the next frame, or some future frame. This will also impact the observed 1394d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * state of the Animator. For example, {@link #isStarted()} may still return true 1395d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * after a call to {@link #end()}. Using the lifecycle callbacks is preferred over 1396d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * queries to {@link #isStarted()}, {@link #isRunning()}, and {@link #isPaused()} 1397d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * for this reason.</li> 1398d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * </ol> 1399d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck * @hide 1400d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck */ 1401c01bd1167a1b08d59557f214ddc48cf24d3b8d0aJohn Reck @Override 1402d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck public void setAllowRunningAsynchronously(boolean mayRunAsync) { 1403d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck // It is up to subclasses to support this, if they can. 1404d3de42cae84fadfa1befd082a2cf1bf72f9ad82aJohn Reck } 1405599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick} 1406