ValueAnimator.java revision 41f041d9986f8a5d45b6cb0b86e881c81a412168
1a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/* 2a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Copyright (C) 2010 The Android Open Source Project 3a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 4a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 5a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * you may not use this file except in compliance with the License. 6a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * You may obtain a copy of the License at 7a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 8a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * http://www.apache.org/licenses/LICENSE-2.0 9a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 10a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Unless required by applicable law or agreed to in writing, software 11a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 12a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * See the License for the specific language governing permissions and 14a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * limitations under the License. 15a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 16a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 17a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haasepackage android.animation; 18a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 19a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Handler; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Looper; 21a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.os.Message; 22a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 23a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.view.animation.AnimationUtils; 24a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 25a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.ArrayList; 26a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport java.util.HashMap; 27a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 28a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase/** 29a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This class provides a simple timing engine for running animations 30a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * which calculate animated values and set them on target objects. 31a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 32a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 33a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 34a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 35a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>By default, ValueAnimator uses non-linear time interpolation, via the 36a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 37a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * out of an animation. This behavior can be changed by calling 38e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase * {@link ValueAnimator#setInterpolator(TimeInterpolator)}.</p> 39a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 4041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haasepublic class ValueAnimator extends Animator { 41a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 42a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 43a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal constants 44a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 45a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 46a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /* 47a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The default amount of time in ms between animation frames 48a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 49608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase private static final long DEFAULT_FRAME_DELAY = 10; 50a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 51a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 52a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 53a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the handler to itself to process the next animation frame 54a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 55a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_START = 0; 56a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ANIMATION_FRAME = 1; 57a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 58a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 59a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 60a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 61a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 62a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int STOPPED = 0; // Not yet playing 63a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int RUNNING = 1; // Playing normally 64a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int CANCELED = 2; // cancel() called - need to end it 65a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int ENDED = 3; // end() called - need to end it 66a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final int SEEKED = 4; // Seeked to some time value 67a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 68a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 69a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal variables 70a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 71a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 72a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to clone() to make deep copies of them. 73a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 74a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 75a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 76a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 77a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // to animateFrame() 78a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartTime; 79a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 80a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 81a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 82a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to a value. 83a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 84a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mSeekTime = -1; 85a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 86a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 87a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // are based 88a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static AnimationHandler sAnimationHandler; 89a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 90a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The static list of all active animations 91a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final ArrayList<ValueAnimator> sAnimations = new ArrayList<ValueAnimator>(); 92a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 93a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The set of animations to be started on the next animation frame 94a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final ArrayList<ValueAnimator> sPendingAnimations = new ArrayList<ValueAnimator>(); 95a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 96a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The time interpolator to be used if none is set on the animation 97e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private static final TimeInterpolator sDefaultInterpolator = 98e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase new AccelerateDecelerateInterpolator(); 99a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // type evaluators for the three primitive types handled by this implementation 101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final TypeEvaluator sDoubleEvaluator = new DoubleEvaluator(); 104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mPlayingBackwards = false; 110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mCurrentIteration = 0; 116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean mStartedDelay = false; 121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * different from the mStartTime variable, which is used to track when the animation became 125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active (which is when the startDelay expired and the animation was added to the active 126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations list). 127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mDelayStartTime; 129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation (if state == STOPPED). Also used to end an animation that 133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * STOPPED, RUNNING, ENDED, CANCELED. 135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mPlayingState = STOPPED; 137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal collections used to avoid set collisions as animations start and end while being 140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * processed. 141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final ArrayList<ValueAnimator> sEndingAnims = new ArrayList<ValueAnimator>(); 143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final ArrayList<ValueAnimator> sDelayedAnims = new ArrayList<ValueAnimator>(); 144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static final ArrayList<ValueAnimator> sReadyAnims = new ArrayList<ValueAnimator>(); 145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Flag that denotes whether the animation is set up and ready to go. Used to 148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set up animation that has not yet been started. 149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean mInitialized = false; 151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Backing variables 154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // 155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // How long the animation should last in ms 15741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase private long mDuration = 300; 158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The amount of time in ms to delay starting the animation after start() is called 160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private long mStartDelay = 0; 161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of milliseconds between animation frames 163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // will play only once 167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatCount = 0; 168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will reverse directions on each iteration. 173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private int mRepeatMode = RESTART; 175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * calculate the animated values. 180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 181e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase private TimeInterpolator mInterpolator = sDefaultInterpolator; 182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The set of listeners to be sent events through the life of an animation. 185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The property/value sets being animated. 190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] mValues; 192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by property name during calls to getAnimatedValue(String). 196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Public constants 201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation restarts from the beginning. 206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int RESTART = 1; 208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * or a positive value, the animation reverses direction on every iteration. 211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int REVERSE = 2; 213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation indefinitely. 216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static final int INFINITE = -1; 218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 219a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 220a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Creates a new ValueAnimator object. This default constructor is primarily for 22141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * use internally; the factory methods which take parameters are more generally 222a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * useful. 223a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 224a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator() { 225a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 226a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 227a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 22841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between int values. A single 22941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 23041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 23141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 23241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 23341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 234a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 23541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 23641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 237a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 23841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofInt(int... values) { 23941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 24041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setIntValues(values); 24141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 24241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 24341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 24441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 24541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between float values. A single 24641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 24741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 24841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 24941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 25041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 25141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 25241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 25341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 25441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 25541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofFloat(float... values) { 25641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 25741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setFloatValues(values); 25841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 25941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 26041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 26141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 26241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between double values. A single 26341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 26441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 26541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 26641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 26741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 26841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 26941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 27041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 27141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 27241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofDouble(double... values) { 27341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 27441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setDoubleValues(values); 27541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 27641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 27741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 27841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 27941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between long values. A single 28041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 28141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 28241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 28341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 28441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 28541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 28641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 28741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 28841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 28941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofLong(long... values) { 29041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 29141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setLongValues(values); 29241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 29341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 29441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 29541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 29641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between the values 29741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * specified in the PropertyValuesHolder objects. 29841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 29941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of PropertyValuesHolder objects whose values will be animated 30041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * between over time. 30141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 30241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 30341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofPropertyValuesHolder(PropertyValuesHolder... values) { 30441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 30541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setValues(values); 30641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 30741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 30841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 30941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Constructs and returns a ValueAnimator that animates between Object values. A single 31041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 31141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 31241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 31341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 31441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 31541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 31641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>Since ValueAnimator does not know how to animate between arbitrary Objects, this 31741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * factory method also takes a TypeEvaluator object that the ValueAnimator will use 31841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * to perform that interpolation. 31941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 32041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param evaluator A TypeEvaluator that will be called on each animation frame to 32141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * provide the ncessry interpolation between the Object values to derive the animated 32241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value. 32341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 32441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return A ValueAnimator object that is set up to animate between the given values. 32541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 32641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public static ValueAnimator ofObject(TypeEvaluator evaluator, Object... values) { 32741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase ValueAnimator anim = new ValueAnimator(); 32841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setObjectValues(values); 32941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase anim.setEvaluator(evaluator); 33041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return anim; 33141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 33241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 33341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 33441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets int values that will be animated between. A single 33541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 33641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 33741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 33841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 33941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 34041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 34141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 34241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 34341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * of those objects.</p> 34441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 34541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 34641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 34741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public void setIntValues(int... values) { 34841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (values == null || values.length == 0) { 34941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return; 35041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 35141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (mValues == null || mValues.length == 0) { 35241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofInt("", values)}); 35341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } else { 35441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 35541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase valuesHolder.setIntValues(values); 35641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 35741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase // New property/values/target should cause re-initialization prior to starting 35841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase mInitialized = false; 35941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 36041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 36141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 36241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets float values that will be animated between. A single 36341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 36441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 36541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 36641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 36741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 36841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 36941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 37041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 37141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * of those objects.</p> 37241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 37341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 37441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 37541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public void setFloatValues(float... values) { 37641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (values == null || values.length == 0) { 37741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return; 378a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 37941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (mValues == null || mValues.length == 0) { 38041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofFloat("", values)}); 38141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } else { 38241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 38341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase valuesHolder.setFloatValues(values); 38441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 38541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase // New property/values/target should cause re-initialization prior to starting 38641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase mInitialized = false; 38741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 38841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 38941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 39041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets long values that will be animated between. A single 39141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 39241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 39341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 39441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 39541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 39641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 39741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 39841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 39941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * of those objects.</p> 40041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 40141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 40241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 40341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public void setLongValues(long... values) { 40441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (values == null || values.length == 0) { 40541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return; 40641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 40741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (mValues == null || mValues.length == 0) { 40841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofLong("", values)}); 40941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } else { 41041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 41141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase valuesHolder.setLongValues(values); 41241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 41341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase // New property/values/target should cause re-initialization prior to starting 41441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase mInitialized = false; 41541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 41641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 41741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 41841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets double values that will be animated between. A single 41941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 42041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 42141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 42241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 42341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 42441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 42541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 42641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 42741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * of those objects.</p> 42841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 42941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values A set of values that the animation will animate between over time. 43041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 43141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public void setDoubleValues(double... values) { 43241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (values == null || values.length == 0) { 43341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return; 43441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 43541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (mValues == null || mValues.length == 0) { 43641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofDouble("", values)}); 43741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } else { 43841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 43941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase valuesHolder.setDoubleValues(values); 44041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 44141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase // New property/values/target should cause re-initialization prior to starting 44241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase mInitialized = false; 44341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 44441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase 44541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase /** 44641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets the values to animate between for this animation. A single 44741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value implies that that value is the one being animated to. However, this is not typically 44841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * useful in a ValueAnimator object because there is no way for the object to determine the 44941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * starting value for the animation (unlike ObjectAnimator, which can derive that value 45041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * from the target object and property being animated). Therefore, there should typically 45141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * be two or more values. 45241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 45341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>If there are already multiple sets of values defined for this ValueAnimator via more 45441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * than one PropertyValuesHolder object, this method will set the values for the first 45541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * of those objects.</p> 45641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 45741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * <p>There should be a TypeEvaluator set on the ValueAnimator that knows how to interpolate 45841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * between these value objects. ValueAnimator only knows how to interpolate between the 45941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * primitive types specified in the other setValues() methods.</p> 46041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * 46141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @param values The set of values to animate between. 46241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase */ 46341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public void setObjectValues(Object... values) { 46441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (values == null || values.length == 0) { 46541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return; 46641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 46741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase if (mValues == null || mValues.length == 0) { 46841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase setValues(new PropertyValuesHolder[]{PropertyValuesHolder.ofObject("", 46941f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase (TypeEvaluator)null, values)}); 47041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } else { 47141f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase PropertyValuesHolder valuesHolder = mValues[0]; 47241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase valuesHolder.setObjectValues(values); 47341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase } 47441f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase // New property/values/target should cause re-initialization prior to starting 47541f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase mInitialized = false; 476a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 477a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 478a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 479a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the values, per property, being animated between. This function is called internally 480a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by the constructors of ValueAnimator that take a list of values. But an ValueAnimator can 481a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be constructed without values and this method can be called to set the values manually 482a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * instead. 483a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 484a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param values The set of values, per property, being animated between. 485a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 486a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setValues(PropertyValuesHolder... values) { 487a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = values.length; 488a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues = values; 489a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 490a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 491a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 492a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 493a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 4940e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase // New property/values/target should cause re-initialization prior to starting 4950e0590bf3cb32e73f423c0fe39a180d4b3c4343dChet Haase mInitialized = false; 496a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 497a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 498a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 499a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the values that this ValueAnimator animates between. These values are stored in 500a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * PropertyValuesHolder objects, even if the ValueAnimator was created with a simple list 501a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of value objects instead. 502a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 503a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return PropertyValuesHolder[] An array of PropertyValuesHolder objects which hold the 504a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values, per property, that define the animation. 505a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 506a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public PropertyValuesHolder[] getValues() { 507a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues; 508a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 509a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 510a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 511a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This function is called immediately before processing the first animation 512a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 513a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called after that delay ends. 514a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * It takes care of the final initialization steps for the 515a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation. 516a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 517a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method should call the superclass method to ensure 518a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * that internal mechanisms for the animation are set up correctly.</p> 519a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 520a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void initAnimation() { 521a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized) { 522a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 523a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 524a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].init(); 525a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 526a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mCurrentIteration = 0; 527a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInitialized = true; 528a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 529a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 530a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 531a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 532a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 53341f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Sets the length of the animation. The default duration is 300 milliseconds. 534a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 535a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param duration The length of the animation, in milliseconds. 53641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * @return ValueAnimator The object called with setDuration(). This return 53741f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * value makes it easier to compose statements together that construct and then set the 53841f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * duration, as in <code>ValueAnimator.ofInt(0, 10).setDuration(500).start()</code>. 539a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 54041f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase public ValueAnimator setDuration(long duration) { 541a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDuration = duration; 54241f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase return this; 543a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 544a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 545a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 54641f041d9986f8a5d45b6cb0b86e881c81a412168Chet Haase * Gets the length of the animation. The default duration is 300 milliseconds. 547a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 548a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The length of the animation, in milliseconds. 549a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 550a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getDuration() { 551a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mDuration; 552a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 553a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 554a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 555a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets the position of the animation to the specified point in time. This time should 556a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * be between 0 and the total duration of the animation, including any repetition. If 557a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the animation has not yet been started, then it will not advance forward after it is 558a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * set to this time; it will simply set the time to this value and perform any appropriate 559a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 560a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will set the current playing time to this value and continue playing from that point. 561a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 562a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 563a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 564a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setCurrentPlayTime(long playTime) { 565a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 566a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 567a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState != RUNNING) { 568a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = playTime; 569a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = SEEKED; 570a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 571a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - playTime; 572a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animationFrame(currentTime); 573a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 574a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 575a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 576a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Gets the current position of the animation in time, which is equal to the current 577a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * time minus the time that the animation started. An animation that is not yet started will 578a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * return a value of zero. 579a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 580a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The current position in time of the animation. 581a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 582a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getCurrentPlayTime() { 583a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mInitialized || mPlayingState == STOPPED) { 584a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return 0; 585a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 586a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 587a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 588a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 589a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 590a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This custom, static handler handles the timing pulse that is shared by 591a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * all active animations. This approach ensures that the setting of animation 592a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * values will happen on the UI thread and that all animations will share 593a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the same times for calculating their values, which makes synchronizing 594a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animations possible. 595a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 596a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 597a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private static class AnimationHandler extends Handler { 598a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 599a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * There are only two messages that we care about: ANIMATION_START and 600a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 601a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * method is called. It cannot start synchronously when start() is called 602a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * because the call may be on the wrong thread, and it would also not be 603a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * synchronized with other animations because it would not start on a common 604a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * timing pulse. So each animation sends a START message to the handler, which 605a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * causes the handler to place the animation on the active animations queue and 606a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * start processing frames for that animation. 607a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The FRAME message is the one that is sent over and over while there are any 608a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * active animations to process. 609a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 610a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 611a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void handleMessage(Message msg) { 612a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean callAgain = true; 613a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (msg.what) { 614a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: should we avoid sending frame message when starting if we 615a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // were already running? 616a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_START: 617a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (sAnimations.size() > 0 || sDelayedAnims.size() > 0) { 618a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase callAgain = false; 619a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 620a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // pendingAnims holds any animations that have requested to be started 621a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // We're going to clear sPendingAnimations, but starting animation may 622a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // cause more to be added to the pending list (for example, if one animation 623a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // starting triggers another starting). So we loop until sPendingAnimations 624a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is empty. 625a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase while (sPendingAnimations.size() > 0) { 626a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<ValueAnimator> pendingCopy = 627a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<ValueAnimator>) sPendingAnimations.clone(); 628a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sPendingAnimations.clear(); 629a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int count = pendingCopy.size(); 630a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < count; ++i) { 631a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = pendingCopy.get(i); 632a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If the animation has a startDelay, place it on the delayed list 633a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.mStartDelay == 0 || anim.mPlayingState == ENDED || 634a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState == CANCELED) { 635a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 636a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 637a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sDelayedAnims.add(anim); 638a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 639a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 640a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 641a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // fall through to process first frame of new animations 642a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ANIMATION_FRAME: 643a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // currentTime holds the common time for all animations processed 644a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // during this frame 645a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 646a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 647a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // First, process animations currently sitting on the delayed queue, adding 648a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // them to the active animations if they are ready 649a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numDelayedAnims = sDelayedAnims.size(); 650a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 651a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = sDelayedAnims.get(i); 652a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.delayedAnimationFrame(currentTime)) { 653a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sReadyAnims.add(anim); 654a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 655a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 656a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numReadyAnims = sReadyAnims.size(); 657a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (numReadyAnims > 0) { 658a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numReadyAnims; ++i) { 659a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = sReadyAnims.get(i); 660a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.startAnimation(); 661a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sDelayedAnims.remove(anim); 662a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 663a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sReadyAnims.clear(); 664a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 665a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 666a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now process all active animations. The return value from animationFrame() 667a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // tells the handler whether it should now be ended 668a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numAnims = sAnimations.size(); 669a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numAnims; ++i) { 670a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ValueAnimator anim = sAnimations.get(i); 671a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (anim.animationFrame(currentTime)) { 672a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sEndingAnims.add(anim); 673a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 674a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 675a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (sEndingAnims.size() > 0) { 676a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < sEndingAnims.size(); ++i) { 677a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sEndingAnims.get(i).endAnimation(); 678a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 679a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sEndingAnims.clear(); 680a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 681a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 682a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // If there are still active or delayed animations, call the handler again 683a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // after the frameDelay 684a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (callAgain && (!sAnimations.isEmpty() || !sDelayedAnims.isEmpty())) { 685608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, Math.max(0, sFrameDelay - 686608fc3cbed6062f29cd512c08aacb8c1632a8851Chet Haase- (AnimationUtils.currentAnimationTimeMillis() - currentTime))); 687a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 688a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 689a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 690a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 691a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 692a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 693a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 694a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 695a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 696a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 697a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of milliseconds to delay running the animation 698a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 699a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public long getStartDelay() { 700a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mStartDelay; 701a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 702a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 703a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 704a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, to delay starting the animation after 705a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link #start()} is called. 706a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 707a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param startDelay The amount of the delay, in milliseconds 708a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 709a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setStartDelay(long startDelay) { 710a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase this.mStartDelay = startDelay; 711a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 712a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 713a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 714a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 715a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 716a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 717a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 718a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 719a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 720a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the requested time between frames, in milliseconds 721a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 722a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static long getFrameDelay() { 723a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return sFrameDelay; 724a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 725a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 726a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 727a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 728a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * requested time that the animation will attempt to honor, but the actual delay between 729a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frames may be different, depending on system load and capabilities. This is a static 730a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function because the same delay will be applied to all animations, since they are all 731a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * run off of a single timing loop. 732a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 733a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param frameDelay the requested time between frames, in milliseconds 734a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 735a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static void setFrameDelay(long frameDelay) { 736a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sFrameDelay = frameDelay; 737a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 738a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 739a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 740a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> when there is just one 741a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * property being animated. This value is only sensible while the animation is running. The main 742a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * purpose for this read-only property is to retrieve the value from the <code>ValueAnimator</code> 743a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 744a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 745a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 746a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated by this <code>ValueAnimator</code> for 747a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the single property being animated. If there are several properties being animated 748a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 749a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * returns the animated value for the first of those objects. 750a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 751a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue() { 752a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mValues != null && mValues.length > 0) { 753a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mValues[0].getAnimatedValue(); 754a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 755a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Shouldn't get here; should always have values unless ValueAnimator was set up wrong 756a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 757a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 758a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 759a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 760a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The most recent value calculated by this <code>ValueAnimator</code> for <code>propertyName</code>. 761a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The main purpose for this read-only property is to retrieve the value from the 762a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code> during a call to 763a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(ValueAnimator)}, which 764a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is called during each animation frame, immediately after the value is calculated. 765a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 766a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return animatedValue The value most recently calculated for the named property 767a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * by this <code>ValueAnimator</code>. 768a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 769a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public Object getAnimatedValue(String propertyName) { 770a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 771a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (valuesHolder != null) { 772a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return valuesHolder.getAnimatedValue(); 773a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 774a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // At least avoid crashing if called with bogus propertyName 775a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return null; 776a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 777a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 778a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 779a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 780a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Sets how many times the animation should be repeated. If the repeat 781a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * count is 0, the animation is never repeated. If the repeat count is 782a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 783a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * into account. The repeat count is 0 by default. 784a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 785a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the number of times the animation should be repeated 786a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 787a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatCount(int value) { 788a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatCount = value; 789a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 790a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 791a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines how many times the animation should repeat. The default value 792a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is 0. 793a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 794a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 795a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 796a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatCount() { 797a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatCount; 798a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 799a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 800a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 801a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. This 802a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * setting is applied only when the repeat count is either greater than 803a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 804a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 805a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 806a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 807a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setRepeatMode(int value) { 808a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mRepeatMode = value; 809a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 810a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 811a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 812a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Defines what this animation should do when it reaches the end. 813a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 814a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 815a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 816a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public int getRepeatMode() { 817a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mRepeatMode; 818a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 819a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 820a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 821a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 822a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * an animation. This method is called on all listeners for every frame of the animation, 823a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * after the values for the animation have been calculated. 824a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 825a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 826a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 827a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 828a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 829a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 830a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 831a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.add(listener); 832a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 833a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 834a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 8353060421045d4d9e411797f91bb509824b03e33fbJim Miller * Removes all listeners from the set listening to frame updates for this animation. 8363060421045d4d9e411797f91bb509824b03e33fbJim Miller */ 8373060421045d4d9e411797f91bb509824b03e33fbJim Miller public void removeAllUpdateListeners() { 8383060421045d4d9e411797f91bb509824b03e33fbJim Miller if (mUpdateListeners == null) { 8393060421045d4d9e411797f91bb509824b03e33fbJim Miller return; 8403060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8413060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners.clear(); 8423060421045d4d9e411797f91bb509824b03e33fbJim Miller mUpdateListeners = null; 8433060421045d4d9e411797f91bb509824b03e33fbJim Miller } 8443060421045d4d9e411797f91bb509824b03e33fbJim Miller 8453060421045d4d9e411797f91bb509824b03e33fbJim Miller /** 846a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Removes a listener from the set listening to frame updates for this animation. 847a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 848a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param listener the listener to be removed from the current set of update listeners 849a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * for this animation. 850a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 851a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 852a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners == null) { 853a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return; 854a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 855a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.remove(listener); 856a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners.size() == 0) { 857a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners = null; 858a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 859a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 860a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 861a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 862a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 863a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 864a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 865a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * such as acceleration and deceleration. The default value is 866a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 867a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 868a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the interpolator to be used by this animation 869a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 870a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 871e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public void setInterpolator(TimeInterpolator value) { 872a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null) { 873a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mInterpolator = value; 874a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 875a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 876a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 877a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 878a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Returns the timing interpolator that this ValueAnimator uses. 879a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 880a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return The timing interpolator for this ValueAnimator. 881a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 882e0ee2e9f3102c3c14c873a75a7b04e49787e0fb9Chet Haase public TimeInterpolator getInterpolator() { 883a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return mInterpolator; 884a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 885a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 886a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 887a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The type evaluator to be used when calculating the animated values of this animation. 888a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * The system will automatically assign a float, int, or double evaluator based on the type 889a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 890a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 891a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 892a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * For example, when running an animation on color values, the {@link RGBEvaluator} 893a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be used to get correct RGB color interpolation. 894a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 895a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>If this ValueAnimator has only one set of values being animated between, this evaluator 896a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * will be used for that set. If there are several sets of values being animated, which is 897a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the case if PropertyValuesHOlder objects were set on the ValueAnimator, then the evaluator 898a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * is assigned just to the first PropertyValuesHolder object.</p> 899a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 900a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param value the evaluator to be used this animation 901a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 902a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void setEvaluator(TypeEvaluator value) { 903a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (value != null && mValues != null && mValues.length > 0) { 904a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[0].setEvaluator(value); 905a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 906a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 907a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 908a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 909a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 910a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 911a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to true if called from the reverse() method/ 912a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 913a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param playBackwards Whether the ValueAnimator should start playing in reverse. 914a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 915a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void start(boolean playBackwards) { 916a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = playBackwards; 9173060421045d4d9e411797f91bb509824b03e33fbJim Miller Looper looper = Looper.getMainLooper(); 9183060421045d4d9e411797f91bb509824b03e33fbJim Miller final boolean isUiThread; 9193060421045d4d9e411797f91bb509824b03e33fbJim Miller if (looper != null) { 9203060421045d4d9e411797f91bb509824b03e33fbJim Miller isUiThread = Thread.currentThread() == looper.getThread(); 9213060421045d4d9e411797f91bb509824b03e33fbJim Miller } else { 9223060421045d4d9e411797f91bb509824b03e33fbJim Miller // ignore check if we don't have a Looper (this isn't an Activity) 9233060421045d4d9e411797f91bb509824b03e33fbJim Miller isUiThread = true; 9243060421045d4d9e411797f91bb509824b03e33fbJim Miller } 9253060421045d4d9e411797f91bb509824b03e33fbJim Miller if ((mStartDelay == 0) && isUiThread) { 926b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mListeners != null) { 927b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase ArrayList<AnimatorListener> tmpListeners = 928b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 929b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase for (AnimatorListener listener : tmpListeners) { 930b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase listener.onAnimationStart(this); 931b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 932b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase } 933a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // This sets the initial value of the animation, prior to actually starting it running 934a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase setCurrentPlayTime(getCurrentPlayTime()); 935a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 936a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 937a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 938a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sPendingAnimations.add(this); 939a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (sAnimationHandler == null) { 940a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimationHandler = new AnimationHandler(); 941a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 942a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: does this put too many messages on the queue if the handler 943a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is already running? 944a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimationHandler.sendEmptyMessage(ANIMATION_START); 945a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 946a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 947a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 948a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void start() { 949a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(false); 950a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 951a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 952a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 953a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void cancel() { 954a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 955a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 956a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 957a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : tmpListeners) { 958a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationCancel(this); 959a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 960a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 961a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Just set the CANCELED flag - this causes the animation to end the next time a frame 962a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is processed. 963a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = CANCELED; 964a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 965a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 966a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 967a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void end() { 968a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!sAnimations.contains(this) && !sPendingAnimations.contains(this)) { 969a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Special case if the animation has not yet started; get it ready for ending 970a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = false; 971a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sPendingAnimations.add(this); 972a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (sAnimationHandler == null) { 973a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimationHandler = new AnimationHandler(); 974a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 975a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimationHandler.sendEmptyMessage(ANIMATION_START); 976a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 977a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Just set the ENDED flag - this causes the animation to end the next time a frame 978a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // is processed. 979a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = ENDED; 980a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 981a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 982a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 983a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public boolean isRunning() { 984a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // ENDED or CANCELED indicate that it has been ended or canceled, but not processed yet 985a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return (mPlayingState == RUNNING || mPlayingState == ENDED || mPlayingState == CANCELED); 986a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 987a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 988a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 989a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Plays the ValueAnimator in reverse. If the animation is already running, 990a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 991a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * If the animation is not currently running, then it will start from the end and 992a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * play backwards. This behavior is only set for the current animation; future playing 993a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animation will use the default behavior of playing forward. 994a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 995a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public void reverse() { 996a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = !mPlayingBackwards; 997a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == RUNNING) { 998a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 999a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long currentPlayTime = currentTime - mStartTime; 1000a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long timeLeft = mDuration - currentPlayTime; 1001a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - timeLeft; 1002a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1003a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase start(true); 1004a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1005a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1007a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1008a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to end an animation by removing it from the animations list. Must be 1009a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1010a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1011a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void endAnimation() { 1012a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimations.remove(this); 1013a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 1014a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 1015a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1016a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 1017a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : tmpListeners) { 1018a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationEnd(this); 1019a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1020a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1021a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1022a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1023a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1024a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 1025a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * called on the UI thread. 1026a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1027a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private void startAnimation() { 1028a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase initAnimation(); 1029a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase sAnimations.add(this); 1030b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase if (mStartDelay > 0 && mListeners != null) { 1031b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // Listeners were already notified in start() if startDelay is 0; this is 1032b20db3ec34e846010f389880b2cfab4d7bf79820Chet Haase // just for delayed animations 1033a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorListener> tmpListeners = 1034a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase (ArrayList<AnimatorListener>) mListeners.clone(); 1035a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : tmpListeners) { 1036a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationStart(this); 1037a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1038a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1039a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1040a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1041a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1042a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Internal function called to process an animation frame on an animation that is currently 1043a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 1044a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be woken up and put on the active animations queue. 1045a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1046a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current animation time, used to calculate whether the animation 1047a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * has exceeded its <code>startDelay</code> and should be started. 1048a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 1049a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be added to the set of active animations. 1050a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1051a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean delayedAnimationFrame(long currentTime) { 1052a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == CANCELED || mPlayingState == ENDED) { 1053a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // end the delay, process an animation frame to actually cancel it 1054a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1055a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1056a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (!mStartedDelay) { 1057a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartedDelay = true; 1058a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mDelayStartTime = currentTime; 1059a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1060a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase long deltaTime = currentTime - mDelayStartTime; 1061a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (deltaTime > mStartDelay) { 1062a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // startDelay ended - start the anim and record the 1063a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // mStartTime appropriately 1064a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 1065a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1066a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return true; 1067a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1068a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1069a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return false; 1070a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1071a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1072a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1073a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This internal function processes a single animation frame for a given animation. The 1074a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 1075a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * elapsed duration, and therefore 1076a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 1077a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 1078a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation's duration, including the repeatCount). 1079a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1080a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param currentTime The current time, as tracked by the static timing handler 1081a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @return true if the animation's duration, including any repetitions due to 1082a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 1083a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1084a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase private boolean animationFrame(long currentTime) { 1085a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase boolean done = false; 1086a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1087a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingState == STOPPED) { 1088a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = RUNNING; 1089a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mSeekTime < 0) { 1090a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime; 1091a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1092a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime = currentTime - mSeekTime; 1093a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Now that we're playing, reset the seek time 1094a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mSeekTime = -1; 1095a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1096a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1097a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase switch (mPlayingState) { 1098a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case RUNNING: 1099a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case SEEKED: 1100a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase float fraction = (float)(currentTime - mStartTime) / mDuration; 1101a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (fraction >= 1f) { 1102a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 1103a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Time to repeat 1104a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mListeners != null) { 1105a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (AnimatorListener listener : mListeners) { 1106a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase listener.onAnimationRepeat(this); 1107a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1108a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1109a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ++mCurrentIteration; 1110a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatMode == REVERSE) { 1111a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 1112a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1113a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // TODO: doesn't account for fraction going Wayyyyy over 1, like 2+ 1114a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = fraction - 1f; 1115a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mStartTime += mDuration; 1116a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1117a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1118a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = Math.min(fraction, 1.0f); 1119a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1120a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1121a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mPlayingBackwards) { 1122a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = 1f - fraction; 1123a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1124a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(fraction); 1125a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1126a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case ENDED: 1127a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // The final value set on the target varies, depending on whether the animation 1128a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // was supposed to repeat an odd number of times 1129a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 1130a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(0f); 1131a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } else { 1132a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase animateValue(1f); 1133a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1134a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // Fall through to set done flag 1135a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase case CANCELED: 1136a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase done = true; 1137a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mPlayingState = STOPPED; 1138a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase break; 1139a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1140a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1141a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return done; 1142a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1143a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1144a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1145a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * This method is called with the elapsed fraction of the animation during every 1146a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 1147a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 1148a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * animation updates, but it is also called when the <code>end()</code> 1149a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * function is called, to set the final value on the property. 1150a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1151a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 1152a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * of the animated value.</p> 1153a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1154a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param fraction The elapsed fraction of the animation. 1155a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1156a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void animateValue(float fraction) { 1157a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase fraction = mInterpolator.getInterpolation(fraction); 1158a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = mValues.length; 1159a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1160a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mValues[i].calculateValue(fraction); 1161a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1162a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1163a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = mUpdateListeners.size(); 1164a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1165a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 1166a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1167a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1168a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1169a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1170a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase @Override 1171a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public ValueAnimator clone() { 1172a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase final ValueAnimator anim = (ValueAnimator) super.clone(); 1173a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (mUpdateListeners != null) { 1174a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 1175a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 1176a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numListeners = oldListeners.size(); 1177a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numListeners; ++i) { 1178a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 1179a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1180a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1181a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mSeekTime = -1; 1182a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingBackwards = false; 1183a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mCurrentIteration = 0; 1184a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mInitialized = false; 1185a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mPlayingState = STOPPED; 1186a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mStartedDelay = false; 1187a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder[] oldValues = mValues; 1188a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase if (oldValues != null) { 1189a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase int numValues = oldValues.length; 1190a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues = new PropertyValuesHolder[numValues]; 1191a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1192a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValues[i] = oldValues[i].clone(); 1193a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1194a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 1195a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase for (int i = 0; i < numValues; ++i) { 1196a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase PropertyValuesHolder valuesHolder = mValues[i]; 1197a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase anim.mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 1198a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1199a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1200a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase return anim; 1201a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1202a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1203a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1204a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * Implementors of this interface can add themselves as update listeners 1205a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * to an <code>ValueAnimator</code> instance to receive callbacks on every animation 1206a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * frame, after the current frame's values have been calculated for that 1207a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <code>ValueAnimator</code>. 1208a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1209a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase public static interface AnimatorUpdateListener { 1210a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase /** 1211a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 1212a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * 1213a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase * @param animation The animation which was repeated. 1214a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase */ 1215a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase void onAnimationUpdate(ValueAnimator animation); 1216a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase 1217a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase } 1218a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase}