Animator.java revision d51d368f2d512ab657b8ae45780c82c0dbea94c3
117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase/* 217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Copyright (C) 2010 The Android Open Source Project 317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Licensed under the Apache License, Version 2.0 (the "License"); 517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * you may not use this file except in compliance with the License. 617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * You may obtain a copy of the License at 717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * http://www.apache.org/licenses/LICENSE-2.0 917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 1017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Unless required by applicable law or agreed to in writing, software 1117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * distributed under the License is distributed on an "AS IS" BASIS, 1217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * See the License for the specific language governing permissions and 1417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * limitations under the License. 1517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 1617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 1717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haasepackage android.animation; 1817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 19f54a8d7c479485174941c38f151ea7083c658da3Chet Haaseimport android.content.Context; 2017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport android.os.Handler; 21602e4d3824bf8b9cb9f817375d195b969712176aChet Haaseimport android.os.Looper; 2217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport android.os.Message; 2317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport android.view.animation.AccelerateDecelerateInterpolator; 2417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport android.view.animation.AnimationUtils; 2517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport android.view.animation.Interpolator; 2617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 2717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haaseimport java.util.ArrayList; 28d953d08e9299072130d9f4411cbcf6678bbce822Chet Haaseimport java.util.HashMap; 2917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 3017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase/** 3117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This class provides a simple timing engine for running animations 3217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * which calculate animated values and set them on target objects. 3317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 34010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * <p>There is a single timing pulse that all animations use. It runs in a 35010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * custom handler to ensure that property changes happen on the UI thread.</p> 36010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * 37010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * <p>By default, Animator uses non-linear time interpolation, via the 38010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * {@link AccelerateDecelerateInterpolator} class, which accelerates into and decelerates 39010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * out of an animation. This behavior can be changed by calling 40010dbaa1236cf2dcdc62c29049468e90188acaaeChet Haase * {@link Animator#setInterpolator(Interpolator)}.</p> 4117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 42d953d08e9299072130d9f4411cbcf6678bbce822Chet Haasepublic class Animator<T> extends Animatable { 4317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 4417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 4517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Internal constants 4617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 4717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 4817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /* 4917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The default amount of time in ms between animation frames 5017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 5117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final long DEFAULT_FRAME_DELAY = 30; 5217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 5317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 5417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Messages sent to timing handler: START is sent when an animation first begins, FRAME is sent 5517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * by the handler to itself to process the next animation frame 5617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 5717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int ANIMATION_START = 0; 5817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int ANIMATION_FRAME = 1; 5917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 6017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 6117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Values used with internal variable mPlayingState to indicate the current state of an 6217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animation. 6317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 6417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int STOPPED = 0; // Not yet playing 6517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int RUNNING = 1; // Playing normally 6617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int CANCELED = 2; // cancel() called - need to end it 6717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final int ENDED = 3; // end() called - need to end it 685d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase private static final int SEEKED = 4; // Seeked to some time value 6917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 7017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 7117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Internal variables 7249afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase * NOTE: This object implements the clone() method, making a deep copy of any referenced 7349afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase * objects. As other non-trivial fields are added to this class, make sure to add logic 7449afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase * to clone() to make deep copies of them. 7517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 7617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 7717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The first time that the animation's animateFrame() method is called. This time is used to 7817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // determine elapsed time (and therefore the elapsed fraction) in subsequent calls 7917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // to animateFrame() 8017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private long mStartTime; 8117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 825d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase /** 835d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * Set when setCurrentPlayTime() is called. If negative, animation is not currently seeked 845d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * to a value. 855d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase */ 865d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase private long mSeekTime = -1; 875d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase 8817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The static sAnimationHandler processes the internal timing loop on which all animations 8917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // are based 9017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static AnimationHandler sAnimationHandler; 9117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 9217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The static list of all active animations 9317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final ArrayList<Animator> sAnimations = new ArrayList<Animator>(); 9417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 9517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The set of animations to be started on the next animation frame 9617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final ArrayList<Animator> sPendingAnimations = new ArrayList<Animator>(); 9717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 9817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The time interpolator to be used if none is set on the animation 9917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final Interpolator sDefaultInterpolator = new AccelerateDecelerateInterpolator(); 10017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 10117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // type evaluators for the three primitive types handled by this implementation 10217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final TypeEvaluator sIntEvaluator = new IntEvaluator(); 10317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final TypeEvaluator sFloatEvaluator = new FloatEvaluator(); 10417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final TypeEvaluator sDoubleEvaluator = new DoubleEvaluator(); 10517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 10617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 10717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Used to indicate whether the animation is currently playing in reverse. This causes the 10817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * elapsed fraction to be inverted to calculate the appropriate values. 10917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 11017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private boolean mPlayingBackwards = false; 11117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 11217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 11317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This variable tracks the current iteration that is playing. When mCurrentIteration exceeds the 11417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * repeatCount (if repeatCount!=INFINITE), the animation ends 11517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 11617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private int mCurrentIteration = 0; 11717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 11817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 11917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Tracks whether a startDelay'd animation has begun playing through the startDelay. 12017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 12117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private boolean mStartedDelay = false; 12217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 12317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 12417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Tracks the time at which the animation began playing through its startDelay. This is 12517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * different from the mStartTime variable, which is used to track when the animation became 12617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * active (which is when the startDelay expired and the animation was added to the active 12717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animations list). 12817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 12917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private long mDelayStartTime; 13017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 13117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 13217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Flag that represents the current state of the animation. Used to figure out when to start 13317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * an animation (if state == STOPPED). Also used to end an animation that 13417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * has been cancel()'d or end()'d since the last animation frame. Possible values are 13517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * STOPPED, RUNNING, ENDED, CANCELED. 13617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 13717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private int mPlayingState = STOPPED; 13817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 13917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 14017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Internal collections used to avoid set collisions as animations start and end while being 14117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * processed. 14217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 14317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final ArrayList<Animator> sEndingAnims = new ArrayList<Animator>(); 14417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final ArrayList<Animator> sDelayedAnims = new ArrayList<Animator>(); 14517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static final ArrayList<Animator> sReadyAnims = new ArrayList<Animator>(); 14617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 1475d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase /** 1485d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * Flag that denotes whether the animation is set up and ready to go. Used by seek() to 1495d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * set up animation that has not yet been started. 1505d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase */ 1515d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase private boolean mInitialized = false; 1525d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase 15317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // 15417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Backing variables 15517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // 15617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 15717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // How long the animation should last in ms 15817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private long mDuration; 15917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 16017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The amount of time in ms to delay starting the animation after start() is called 16117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private long mStartDelay = 0; 16217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 16317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The number of milliseconds between animation frames 16417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static long sFrameDelay = DEFAULT_FRAME_DELAY; 16517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 16617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The number of times the animation will repeat. The default is 0, which means the animation 16717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // will play only once 16817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private int mRepeatCount = 0; 16917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 17017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 17117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The type of repetition that will occur when repeatMode is nonzero. RESTART means the 17217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animation will start from the beginning on every new cycle. REVERSE means the animation 17317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * will reverse directions on each iteration. 17417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 17517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private int mRepeatMode = RESTART; 17617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 17717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 17817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The time interpolator to be used. The elapsed fraction of the animation will be passed 17917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * through this interpolator to calculate the interpolated fraction, which is then used to 18017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * calculate the animated values. 18117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 18217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private Interpolator mInterpolator = sDefaultInterpolator; 18317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 18417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 18517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The set of listeners to be sent events through the life of an animation. 18617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 18717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private ArrayList<AnimatorUpdateListener> mUpdateListeners = null; 18817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 18917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 190d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * The property/value sets being animated. 19117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 192602e4d3824bf8b9cb9f817375d195b969712176aChet Haase PropertyValuesHolder[] mValues; 19317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 19417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 195602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * A hashmap of the PropertyValuesHolder objects. This map is used to lookup animated values 196602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * by property name during calls to getAnimatedValue(String). 1973dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase */ 198602e4d3824bf8b9cb9f817375d195b969712176aChet Haase HashMap<String, PropertyValuesHolder> mValuesMap; 1993dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase 2003dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase /** 20117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Public constants 20217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 20317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 20417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 20517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 20617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * or a positive value, the animation restarts from the beginning. 20717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 20817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static final int RESTART = 1; 20917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 21017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * When the animation reaches the end and <code>repeatCount</code> is INFINITE 21117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * or a positive value, the animation reverses direction on every iteration. 21217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 21317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static final int REVERSE = 2; 21417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 21517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This value used used with the {@link #setRepeatCount(int)} property to repeat 21617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * the animation indefinitely. 21717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 21817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static final int INFINITE = -1; 21917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 220f54a8d7c479485174941c38f151ea7083c658da3Chet Haase /** 221d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * Creates a new Animator object. This default constructor is primarily for 222d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * use internally; the other constructors which take parameters are more generally 223d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * useful. 224f54a8d7c479485174941c38f151ea7083c658da3Chet Haase */ 225d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase public Animator() { 226f54a8d7c479485174941c38f151ea7083c658da3Chet Haase } 227f54a8d7c479485174941c38f151ea7083c658da3Chet Haase 22817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 229d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * Constructs an Animator object with the specified duration and set of 230d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * values. If the values are a set of PropertyValuesHolder objects, then these objects 231d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * define the potentially multiple properties being animated and the values the properties are 232d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * animated between. Otherwise, the values define a single set of values animated between. 2333dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase * 2343dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase * @param duration The length of the animation, in milliseconds. 235d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * @param values The set of values to animate between. If these values are not 236d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * PropertyValuesHolder objects, then there should be more than one value, since the values 237d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * determine the interval to animate between. 2383dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase */ 239d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase public Animator(long duration, T...values) { 2403dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase mDuration = duration; 241d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase if (values.length > 0) { 242d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase setValues(values); 243d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase } 244fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase } 245fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase 246d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase public void setValues(PropertyValuesHolder... values) { 247d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase int numValues = values.length; 248602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValues = values; 249602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 250d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase for (int i = 0; i < numValues; ++i) { 251d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase PropertyValuesHolder valuesHolder = (PropertyValuesHolder) values[i]; 252602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 253d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase } 254fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase } 255fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase 256fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase /** 257d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * Sets the values to animate between for this animation. If <code>values</code> is 258d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * a set of PropertyValuesHolder objects, these objects will become the set of properties 259d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * animated and the values that those properties are animated between. Otherwise, this method 260d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * will set only one set of values for the Animator. Also, if the values are not 261d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * PropertyValuesHolder objects and if there are already multiple sets of 262d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * values defined for this Animator via 263d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * more than one PropertyValuesHolder objects, this method will set the values for 264d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * the first of those objects. 265fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * 266d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * @param values The set of values to animate between. 267fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase */ 268d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase public void setValues(T... values) { 269602e4d3824bf8b9cb9f817375d195b969712176aChet Haase if (mValues == null || mValues.length == 0) { 270602e4d3824bf8b9cb9f817375d195b969712176aChet Haase setValues(new PropertyValuesHolder[]{ 271602e4d3824bf8b9cb9f817375d195b969712176aChet Haase new PropertyValuesHolder("", (Object[])values)}); 272d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase } else { 273602e4d3824bf8b9cb9f817375d195b969712176aChet Haase PropertyValuesHolder valuesHolder = mValues[0]; 274602e4d3824bf8b9cb9f817375d195b969712176aChet Haase valuesHolder.setValues(values); 275d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase } 276fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase } 277fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase 278fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase /** 279fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * This function is called immediately before processing the first animation 280fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * frame of an animation. If there is a nonzero <code>startDelay</code>, the 281fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * function is called after that delay ends. 282fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * It takes care of the final initialization steps for the 283fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * animation. 284fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * 285fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * <p>Overrides of this method should call the superclass method to ensure 286fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase * that internal mechanisms for the animation are set up correctly.</p> 287fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase */ 288fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase void initAnimation() { 289602e4d3824bf8b9cb9f817375d195b969712176aChet Haase int numValues = mValues.length; 290602e4d3824bf8b9cb9f817375d195b969712176aChet Haase for (int i = 0; i < numValues; ++i) { 291602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValues[i].init(); 292fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase } 293fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase mCurrentIteration = 0; 2945d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mInitialized = true; 2955d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 2965d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase 297d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase 298d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase /** 299d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * Sets the length of the animation. 300d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * 301d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * @param duration The length of the animation, in milliseconds. 302d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase */ 303d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase public void setDuration(long duration) { 304d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase mDuration = duration; 305d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase } 306d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase 307d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase /** 308d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * Gets the length of the animation. 309d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * 310d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase * @return The length of the animation, in milliseconds. 311d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase */ 312d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase public long getDuration() { 313d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase return mDuration; 314d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase } 315d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase 3165d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase /** 3175d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * Sets the position of the animation to the specified point in time. This time should 3185d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * be between 0 and the total duration of the animation, including any repetition. If 3195d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * the animation has not yet been started, then it will not advance forward after it is 3205d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * set to this time; it will simply set the time to this value and perform any appropriate 321602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * actions based on that time. If the animation is already running, then setCurrentPlayTime() 322602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * will set the current playing time to this value and continue playing from that point. 3235d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * 3245d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * @param playTime The time, in milliseconds, to which the animation is advanced or rewound. 3255d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase */ 3265d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase public void setCurrentPlayTime(long playTime) { 3275d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase if (!mInitialized) { 3285d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase initAnimation(); 3295d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 3305d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 3315d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase if (mPlayingState != RUNNING) { 3325d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mSeekTime = playTime; 3335d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mPlayingState = SEEKED; 3345d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 3355d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mStartTime = currentTime - playTime; 3365d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase animationFrame(currentTime); 3375d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 3385d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase 3395d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase /** 3405d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * Gets the current position of the animation in time, which is equal to the current 3415d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * time minus the time that the animation started. An animation that is not yet started will 3425d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * return a value of zero. 3435d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * 3445d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase * @return The current position in time of the animation. 3455d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase */ 3465d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase public long getCurrentPlayTime() { 34749afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase if (!mInitialized || mPlayingState == STOPPED) { 3485d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase return 0; 3495d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 3505d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase return AnimationUtils.currentAnimationTimeMillis() - mStartTime; 351fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase } 352fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase 353fe591563f8529305bd52e1f0640e83b9a93d562fChet Haase /** 35417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This custom, static handler handles the timing pulse that is shared by 35517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * all active animations. This approach ensures that the setting of animation 35617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * values will happen on the UI thread and that all animations will share 35717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * the same times for calculating their values, which makes synchronizing 35817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animations possible. 35917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 36017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 36117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private static class AnimationHandler extends Handler { 36217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 36317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * There are only two messages that we care about: ANIMATION_START and 36417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * ANIMATION_FRAME. The START message is sent when an animation's start() 36517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * method is called. It cannot start synchronously when start() is called 36617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * because the call may be on the wrong thread, and it would also not be 36717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * synchronized with other animations because it would not start on a common 36817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * timing pulse. So each animation sends a START message to the handler, which 36917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * causes the handler to place the animation on the active animations queue and 37017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * start processing frames for that animation. 37117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The FRAME message is the one that is sent over and over while there are any 37217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * active animations to process. 37317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 37417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase @Override 37517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void handleMessage(Message msg) { 37617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase boolean callAgain = true; 37717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase switch (msg.what) { 37817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // TODO: should we avoid sending frame message when starting if we 37917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // were already running? 38017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase case ANIMATION_START: 38117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (sAnimations.size() > 0 || sDelayedAnims.size() > 0) { 38217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase callAgain = false; 38317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 38417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // pendingAnims holds any animations that have requested to be started 38517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // We're going to clear sPendingAnimations, but starting animation may 38617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // cause more to be added to the pending list (for example, if one animation 38717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // starting triggers another starting). So we loop until sPendingAnimations 38817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // is empty. 38917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase while (sPendingAnimations.size() > 0) { 39017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase ArrayList<Animator> pendingCopy = 39117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase (ArrayList<Animator>) sPendingAnimations.clone(); 39217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sPendingAnimations.clear(); 39317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase int count = pendingCopy.size(); 39417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < count; ++i) { 39517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase Animator anim = pendingCopy.get(i); 39617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // If the animation has a startDelay, place it on the delayed list 39717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (anim.mStartDelay == 0) { 39817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase anim.startAnimation(); 39917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } else { 40017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sDelayedAnims.add(anim); 40117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 40217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 40317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 40417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // fall through to process first frame of new animations 40517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase case ANIMATION_FRAME: 40617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // currentTime holds the common time for all animations processed 40717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // during this frame 40817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 40917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 41017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // First, process animations currently sitting on the delayed queue, adding 41117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // them to the active animations if they are ready 41217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase int numDelayedAnims = sDelayedAnims.size(); 41317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < numDelayedAnims; ++i) { 41417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase Animator anim = sDelayedAnims.get(i); 41517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (anim.delayedAnimationFrame(currentTime)) { 41617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sReadyAnims.add(anim); 41717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 41817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 41917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase int numReadyAnims = sReadyAnims.size(); 42017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (numReadyAnims > 0) { 42117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < numReadyAnims; ++i) { 42217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase Animator anim = sReadyAnims.get(i); 42317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase anim.startAnimation(); 42417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sDelayedAnims.remove(anim); 42517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 42617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sReadyAnims.clear(); 42717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 42817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 42917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Now process all active animations. The return value from animationFrame() 43017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // tells the handler whether it should now be ended 43117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase int numAnims = sAnimations.size(); 43217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < numAnims; ++i) { 43317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase Animator anim = sAnimations.get(i); 43417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (anim.animationFrame(currentTime)) { 43517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sEndingAnims.add(anim); 43617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 43717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 43817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (sEndingAnims.size() > 0) { 43917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < sEndingAnims.size(); ++i) { 44017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sEndingAnims.get(i).endAnimation(); 44117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 44217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sEndingAnims.clear(); 44317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 44417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 44517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // If there are still active or delayed animations, call the handler again 44617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // after the frameDelay 44717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (callAgain && (!sAnimations.isEmpty() || !sDelayedAnims.isEmpty())) { 44817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sendEmptyMessageDelayed(ANIMATION_FRAME, sFrameDelay); 44917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 45017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase break; 45117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 45217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 45317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 45417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 45517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 45617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The amount of time, in milliseconds, to delay starting the animation after 45717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * {@link #start()} is called. 45817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 45917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return the number of milliseconds to delay running the animation 46017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 46117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public long getStartDelay() { 46217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return mStartDelay; 46317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 46417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 46517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 46617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The amount of time, in milliseconds, to delay starting the animation after 46717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * {@link #start()} is called. 46817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 46917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param startDelay The amount of the delay, in milliseconds 47017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 47117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void setStartDelay(long startDelay) { 47217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase this.mStartDelay = startDelay; 47317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 47417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 47517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 47617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 47717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * requested time that the animation will attempt to honor, but the actual delay between 47817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * frames may be different, depending on system load and capabilities. This is a static 47917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * function because the same delay will be applied to all animations, since they are all 48017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * run off of a single timing loop. 48117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 48217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return the requested time between frames, in milliseconds 48317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 48417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static long getFrameDelay() { 48517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return sFrameDelay; 48617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 48717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 48817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 48917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The amount of time, in milliseconds, between each frame of the animation. This is a 49017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * requested time that the animation will attempt to honor, but the actual delay between 49117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * frames may be different, depending on system load and capabilities. This is a static 49217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * function because the same delay will be applied to all animations, since they are all 49317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * run off of a single timing loop. 49417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 49517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param frameDelay the requested time between frames, in milliseconds 49617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 49717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static void setFrameDelay(long frameDelay) { 49817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sFrameDelay = frameDelay; 49917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 50017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 50117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 502d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * The most recent value calculated by this <code>Animator</code> when there is just one 503d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * property being animated. This value is only sensible while the animation is running. The main 50417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * purpose for this read-only property is to retrieve the value from the <code>Animator</code> 50517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * during a call to {@link AnimatorUpdateListener#onAnimationUpdate(Animator)}, which 50617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * is called during each animation frame, immediately after the value is calculated. 50717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 50817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return animatedValue The value most recently calculated by this <code>Animator</code> for 509d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * the single property being animated. If there are several properties being animated 510d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * (specified by several PropertyValuesHolder objects in the constructor), this function 511d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * returns the animated value for the first of those objects. 51217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 51317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public Object getAnimatedValue() { 514602e4d3824bf8b9cb9f817375d195b969712176aChet Haase if (mValues != null && mValues.length > 0) { 515602e4d3824bf8b9cb9f817375d195b969712176aChet Haase return mValues[0].getAnimatedValue(); 516602e4d3824bf8b9cb9f817375d195b969712176aChet Haase } 517602e4d3824bf8b9cb9f817375d195b969712176aChet Haase // Shouldn't get here; should always have values unless Animator was set up wrong 518602e4d3824bf8b9cb9f817375d195b969712176aChet Haase return null; 519d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase } 520d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase 521d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase /** 522d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * The most recent value calculated by this <code>Animator</code> for <code>propertyName</code>. 523d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * The main purpose for this read-only property is to retrieve the value from the 524d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * <code>Animator</code> during a call to 525d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * {@link AnimatorUpdateListener#onAnimationUpdate(Animator)}, which 526d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * is called during each animation frame, immediately after the value is calculated. 527d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * 528d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * @return animatedValue The value most recently calculated for the named property 529d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * by this <code>Animator</code>. 530d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase */ 531d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase public Object getAnimatedValue(String propertyName) { 532602e4d3824bf8b9cb9f817375d195b969712176aChet Haase PropertyValuesHolder valuesHolder = mValuesMap.get(propertyName); 533602e4d3824bf8b9cb9f817375d195b969712176aChet Haase if (valuesHolder != null) { 534602e4d3824bf8b9cb9f817375d195b969712176aChet Haase return valuesHolder.getAnimatedValue(); 535602e4d3824bf8b9cb9f817375d195b969712176aChet Haase } else { 536602e4d3824bf8b9cb9f817375d195b969712176aChet Haase // At least avoid crashing if called with bogus propertyName 537602e4d3824bf8b9cb9f817375d195b969712176aChet Haase return null; 538602e4d3824bf8b9cb9f817375d195b969712176aChet Haase } 53917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 54017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 54117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 54217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Sets how many times the animation should be repeated. If the repeat 54317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * count is 0, the animation is never repeated. If the repeat count is 54417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * greater than 0 or {@link #INFINITE}, the repeat mode will be taken 54517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * into account. The repeat count is 0 by default. 54617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 54717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param value the number of times the animation should be repeated 54817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 54917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void setRepeatCount(int value) { 55017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mRepeatCount = value; 55117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 55217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 55317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Defines how many times the animation should repeat. The default value 55417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * is 0. 55517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 55617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return the number of times the animation should repeat, or {@link #INFINITE} 55717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 55817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public int getRepeatCount() { 55917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return mRepeatCount; 56017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 56117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 56217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 56317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Defines what this animation should do when it reaches the end. This 56417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * setting is applied only when the repeat count is either greater than 56517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 0 or {@link #INFINITE}. Defaults to {@link #RESTART}. 56617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 56717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param value {@link #RESTART} or {@link #REVERSE} 56817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 56917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void setRepeatMode(int value) { 57017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mRepeatMode = value; 57117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 57217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 57317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 57417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Defines what this animation should do when it reaches the end. 57517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 57617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return either one of {@link #REVERSE} or {@link #RESTART} 57717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 57817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public int getRepeatMode() { 57917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return mRepeatMode; 58017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 58117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 58217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 58317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Adds a listener to the set of listeners that are sent update events through the life of 58417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * an animation. This method is called on all listeners for every frame of the animation, 58517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * after the values for the animation have been calculated. 58617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 58717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param listener the listener to be added to the current set of listeners for this animation. 58817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 58917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void addUpdateListener(AnimatorUpdateListener listener) { 59017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mUpdateListeners == null) { 59117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 59217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 59317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mUpdateListeners.add(listener); 59417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 59517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 59617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 59717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Removes a listener from the set listening to frame updates for this animation. 59817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 59917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param listener the listener to be removed from the current set of update listeners 60017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * for this animation. 60117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 60217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void removeUpdateListener(AnimatorUpdateListener listener) { 60317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mUpdateListeners == null) { 60417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return; 60517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 60617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mUpdateListeners.remove(listener); 60717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mUpdateListeners.size() == 0) { 60817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mUpdateListeners = null; 60917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 61017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 61117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 61217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 61317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 61417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The time interpolator used in calculating the elapsed fraction of this animation. The 61517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * interpolator determines whether the animation runs with linear or non-linear motion, 61617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * such as acceleration and deceleration. The default value is 61717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * {@link android.view.animation.AccelerateDecelerateInterpolator} 61817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 61917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param value the interpolator to be used by this animation 62017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 62117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void setInterpolator(Interpolator value) { 62217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (value != null) { 62317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mInterpolator = value; 62417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 62517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 62617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 62717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 628602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * Returns the timing interpolator that this Animator uses. 629602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * 630602e4d3824bf8b9cb9f817375d195b969712176aChet Haase * @return The timing interpolator for this Animator. 631602e4d3824bf8b9cb9f817375d195b969712176aChet Haase */ 632602e4d3824bf8b9cb9f817375d195b969712176aChet Haase public Interpolator getInterpolator() { 633602e4d3824bf8b9cb9f817375d195b969712176aChet Haase return mInterpolator; 634602e4d3824bf8b9cb9f817375d195b969712176aChet Haase } 635602e4d3824bf8b9cb9f817375d195b969712176aChet Haase 636602e4d3824bf8b9cb9f817375d195b969712176aChet Haase /** 63717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The type evaluator to be used when calculating the animated values of this animation. 63817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * The system will automatically assign a float, int, or double evaluator based on the type 63917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * of <code>startValue</code> and <code>endValue</code> in the constructor. But if these values 64017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * are not one of these primitive types, or if different evaluation is desired (such as is 64117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * necessary with int values that represent colors), a custom evaluator needs to be assigned. 64217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * For example, when running an animation on color values, the {@link RGBEvaluator} 64317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * should be used to get correct RGB color interpolation. 64417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 645d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * <p>If this Animator has only one set of values being animated between, this evaluator 646d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * will be used for that set. If there are several sets of values being animated, which is 647d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * the case if PropertyValuesHOlder objects were set on the Animator, then the evaluator 648d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * is assigned just to the first PropertyValuesHolder object.</p> 649d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * 65017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param value the evaluator to be used this animation 65117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 65217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void setEvaluator(TypeEvaluator value) { 653602e4d3824bf8b9cb9f817375d195b969712176aChet Haase if (value != null && mValues != null && mValues.length > 0) { 654602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValues[0].setEvaluator(value); 65517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 65617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 65717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 658d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase /** 659d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * Start the animation playing. This version of start() takes a boolean flag that indicates 660d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * whether the animation should play in reverse. The flag is usually false, but may be set 661d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * to true if called from the reverse() method/ 662d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * 663d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase * @param playBackwards Whether the Animator should start playing in reverse. 664d953d08e9299072130d9f4411cbcf6678bbce822Chet Haase */ 6655c7649857246333572eb332b505ad617365ef5faChet Haase private void start(boolean playBackwards) { 666d51d368f2d512ab657b8ae45780c82c0dbea94c3Chet Haase mPlayingBackwards = playBackwards; 667602e4d3824bf8b9cb9f817375d195b969712176aChet Haase if ((mStartDelay == 0) && (Thread.currentThread() == Looper.getMainLooper().getThread())) { 668602e4d3824bf8b9cb9f817375d195b969712176aChet Haase // This sets the initial value of the animation, prior to actually starting it running 669602e4d3824bf8b9cb9f817375d195b969712176aChet Haase setCurrentPlayTime(getCurrentPlayTime()); 670602e4d3824bf8b9cb9f817375d195b969712176aChet Haase } 6715d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mPlayingState = STOPPED; 67217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sPendingAnimations.add(this); 67317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (sAnimationHandler == null) { 67417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sAnimationHandler = new AnimationHandler(); 67517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 67617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // TODO: does this put too many messages on the queue if the handler 67717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // is already running? 67817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sAnimationHandler.sendEmptyMessage(ANIMATION_START); 67917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 68017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 6815c7649857246333572eb332b505ad617365ef5faChet Haase @Override 6825c7649857246333572eb332b505ad617365ef5faChet Haase public void start() { 6835c7649857246333572eb332b505ad617365ef5faChet Haase start(false); 6845c7649857246333572eb332b505ad617365ef5faChet Haase } 6855c7649857246333572eb332b505ad617365ef5faChet Haase 6865c7649857246333572eb332b505ad617365ef5faChet Haase @Override 68717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void cancel() { 68817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mListeners != null) { 68917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase ArrayList<AnimatableListener> tmpListeners = 69017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase (ArrayList<AnimatableListener>) mListeners.clone(); 69117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (AnimatableListener listener : tmpListeners) { 69217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase listener.onAnimationCancel(this); 69317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 69417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 69517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Just set the CANCELED flag - this causes the animation to end the next time a frame 69617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // is processed. 69717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingState = CANCELED; 69817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 69917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 7005c7649857246333572eb332b505ad617365ef5faChet Haase @Override 70117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public void end() { 70217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Just set the ENDED flag - this causes the animation to end the next time a frame 70317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // is processed. 70417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingState = ENDED; 70517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 70617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 70717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 7085c7649857246333572eb332b505ad617365ef5faChet Haase * Returns whether this Animator is currently running (having been started and not yet ended). 7095c7649857246333572eb332b505ad617365ef5faChet Haase * @return Wehther the Animator is running. 7105c7649857246333572eb332b505ad617365ef5faChet Haase */ 7115c7649857246333572eb332b505ad617365ef5faChet Haase public boolean isRunning() { 7125c7649857246333572eb332b505ad617365ef5faChet Haase return mPlayingState == RUNNING; 7135c7649857246333572eb332b505ad617365ef5faChet Haase } 7145c7649857246333572eb332b505ad617365ef5faChet Haase 7155c7649857246333572eb332b505ad617365ef5faChet Haase /** 7165c7649857246333572eb332b505ad617365ef5faChet Haase * Plays the Animator in reverse. If the animation is already running, 7175c7649857246333572eb332b505ad617365ef5faChet Haase * it will stop itself and play backwards from the point reached when reverse was called. 7185c7649857246333572eb332b505ad617365ef5faChet Haase * If the animation is not currently running, then it will start from the end and 7195c7649857246333572eb332b505ad617365ef5faChet Haase * play backwards. This behavior is only set for the current animation; future playing 7205c7649857246333572eb332b505ad617365ef5faChet Haase * of the animation will use the default behavior of playing forward. 7215c7649857246333572eb332b505ad617365ef5faChet Haase */ 7225c7649857246333572eb332b505ad617365ef5faChet Haase public void reverse() { 7235c7649857246333572eb332b505ad617365ef5faChet Haase mPlayingBackwards = !mPlayingBackwards; 7245c7649857246333572eb332b505ad617365ef5faChet Haase if (mPlayingState == RUNNING) { 7255c7649857246333572eb332b505ad617365ef5faChet Haase long currentTime = AnimationUtils.currentAnimationTimeMillis(); 7265c7649857246333572eb332b505ad617365ef5faChet Haase long currentPlayTime = currentTime - mStartTime; 7275c7649857246333572eb332b505ad617365ef5faChet Haase long timeLeft = mDuration - currentPlayTime; 7285c7649857246333572eb332b505ad617365ef5faChet Haase mStartTime = currentTime - timeLeft; 7295c7649857246333572eb332b505ad617365ef5faChet Haase } else { 7305c7649857246333572eb332b505ad617365ef5faChet Haase start(true); 7315c7649857246333572eb332b505ad617365ef5faChet Haase } 7325c7649857246333572eb332b505ad617365ef5faChet Haase } 7335c7649857246333572eb332b505ad617365ef5faChet Haase 7345c7649857246333572eb332b505ad617365ef5faChet Haase /** 73517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Called internally to end an animation by removing it from the animations list. Must be 73617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * called on the UI thread. 73717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 73817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private void endAnimation() { 73917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sAnimations.remove(this); 74017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mListeners != null) { 74117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase ArrayList<AnimatableListener> tmpListeners = 74217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase (ArrayList<AnimatableListener>) mListeners.clone(); 74317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (AnimatableListener listener : tmpListeners) { 74417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase listener.onAnimationEnd(this); 74517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 74617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 74717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingState = STOPPED; 74817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 74917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 75017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 75117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Called internally to start an animation by adding it to the active animations list. Must be 75217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * called on the UI thread. 75317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 75417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private void startAnimation() { 75517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase initAnimation(); 75617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase sAnimations.add(this); 75717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mListeners != null) { 75817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase ArrayList<AnimatableListener> tmpListeners = 75917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase (ArrayList<AnimatableListener>) mListeners.clone(); 76017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (AnimatableListener listener : tmpListeners) { 76117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase listener.onAnimationStart(this); 76217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 76317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 76417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 76517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 76617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 76717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Internal function called to process an animation frame on an animation that is currently 76817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * sleeping through its <code>startDelay</code> phase. The return value indicates whether it 76917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * should be woken up and put on the active animations queue. 77017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 77117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param currentTime The current animation time, used to calculate whether the animation 77217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * has exceeded its <code>startDelay</code> and should be started. 77317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return True if the animation's <code>startDelay</code> has been exceeded and the animation 77417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * should be added to the set of active animations. 77517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 77617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private boolean delayedAnimationFrame(long currentTime) { 77717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (!mStartedDelay) { 77817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mStartedDelay = true; 77917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mDelayStartTime = currentTime; 78017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } else { 78117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase long deltaTime = currentTime - mDelayStartTime; 78217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (deltaTime > mStartDelay) { 78317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // startDelay ended - start the anim and record the 78417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // mStartTime appropriately 78517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mStartTime = currentTime - (deltaTime - mStartDelay); 78617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingState = RUNNING; 78717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return true; 78817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 78917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 79017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return false; 79117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 79217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 79317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 79417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This internal function processes a single animation frame for a given animation. The 79517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * currentTime parameter is the timing pulse sent by the handler, used to calculate the 79617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * elapsed duration, and therefore 79717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * the elapsed fraction, of the animation. The return value indicates whether the animation 79817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * should be ended (which happens when the elapsed time of the animation exceeds the 79917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animation's duration, including the repeatCount). 80017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 80117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param currentTime The current time, as tracked by the static timing handler 80217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @return true if the animation's duration, including any repetitions due to 80317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * <code>repeatCount</code> has been exceeded and the animation should be ended. 80417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 80517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase private boolean animationFrame(long currentTime) { 80617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase boolean done = false; 80717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 80817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mPlayingState == STOPPED) { 80917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingState = RUNNING; 8105d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase if (mSeekTime < 0) { 8115d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mStartTime = currentTime; 8125d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } else { 8135d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mStartTime = currentTime - mSeekTime; 8145d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase // Now that we're playing, reset the seek time 8155d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase mSeekTime = -1; 8165d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase } 81717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 81817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase switch (mPlayingState) { 81917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase case RUNNING: 8205d7b50b800b9898f5ca0b2b4d8b73ed6a4ee1749Chet Haase case SEEKED: 82117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase float fraction = (float)(currentTime - mStartTime) / mDuration; 82217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (fraction >= 1f) { 82317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mCurrentIteration < mRepeatCount || mRepeatCount == INFINITE) { 82417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Time to repeat 82517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mListeners != null) { 82617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (AnimatableListener listener : mListeners) { 82717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase listener.onAnimationRepeat(this); 82817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 82917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 83017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase ++mCurrentIteration; 83117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mRepeatMode == REVERSE) { 83217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mPlayingBackwards = mPlayingBackwards ? false : true; 83317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 83417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // TODO: doesn't account for fraction going Wayyyyy over 1, like 2+ 83517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase fraction = fraction - 1f; 83617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mStartTime += mDuration; 83717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } else { 83817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase done = true; 83917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase fraction = Math.min(fraction, 1.0f); 84017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 84117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 84217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mPlayingBackwards) { 84317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase fraction = 1f - fraction; 84417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 84517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase animateValue(fraction); 84617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase break; 84717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase case ENDED: 84817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // The final value set on the target varies, depending on whether the animation 84917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // was supposed to repeat an odd number of times 85017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mRepeatCount > 0 && (mRepeatCount & 0x01) == 1) { 85117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase animateValue(0f); 85217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } else { 85317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase animateValue(1f); 85417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 85517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase // Fall through to set done flag 85617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase case CANCELED: 85717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase done = true; 85817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase break; 85917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 86017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 86117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase return done; 86217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 86317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 86417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 86517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * This method is called with the elapsed fraction of the animation during every 86617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animation frame. This function turns the elapsed fraction into an interpolated fraction 86717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * and then into an animated value (from the evaluator. The function is called mostly during 86817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * animation updates, but it is also called when the <code>end()</code> 86917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * function is called, to set the final value on the property. 87017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 87117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * <p>Overrides of this method must call the superclass to perform the calculation 87217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * of the animated value.</p> 87317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 87417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param fraction The elapsed fraction of the animation. 87517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 87617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase void animateValue(float fraction) { 87717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase fraction = mInterpolator.getInterpolation(fraction); 878602e4d3824bf8b9cb9f817375d195b969712176aChet Haase int numValues = mValues.length; 879602e4d3824bf8b9cb9f817375d195b969712176aChet Haase for (int i = 0; i < numValues; ++i) { 880602e4d3824bf8b9cb9f817375d195b969712176aChet Haase mValues[i].calculateValue(fraction); 8813dd207a6dbd5d9244dc7fe213d5caa3cddaff0dbChet Haase } 88217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase if (mUpdateListeners != null) { 88317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase int numListeners = mUpdateListeners.size(); 88417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase for (int i = 0; i < numListeners; ++i) { 88517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase mUpdateListeners.get(i).onAnimationUpdate(this); 88617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 88717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 88817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 88917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 89049afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase @Override 89149afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase public Animator clone() throws CloneNotSupportedException { 89249afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase final Animator anim = (Animator) super.clone(); 89349afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase if (mUpdateListeners != null) { 89449afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase ArrayList<AnimatorUpdateListener> oldListeners = mUpdateListeners; 89549afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mUpdateListeners = new ArrayList<AnimatorUpdateListener>(); 89649afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase int numListeners = oldListeners.size(); 89749afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase for (int i = 0; i < numListeners; ++i) { 89849afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mUpdateListeners.add(oldListeners.get(i)); 89949afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 90049afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 90149afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mSeekTime = -1; 90249afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mPlayingBackwards = false; 90349afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mCurrentIteration = 0; 90449afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mInitialized = false; 90549afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mPlayingState = STOPPED; 90649afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mStartedDelay = false; 90749afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase PropertyValuesHolder[] oldValues = mValues; 90849afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase if (oldValues != null) { 90949afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase int numValues = oldValues.length; 91049afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mValues = new PropertyValuesHolder[numValues]; 91149afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase for (int i = 0; i < numValues; ++i) { 91249afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mValues[i] = oldValues[i]; 91349afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 91449afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mValuesMap = new HashMap<String, PropertyValuesHolder>(numValues); 91549afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase for (int i = 0; i < numValues; ++i) { 91649afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase PropertyValuesHolder valuesHolder = mValues[i]; 91749afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase anim.mValuesMap.put(valuesHolder.getPropertyName(), valuesHolder); 91849afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 91949afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 92049afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase return anim; 92149afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase } 92249afa5bc100e5d4c069fea980dd6b09501f56397Chet Haase 92317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 92417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * Implementors of this interface can add themselves as update listeners 92517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * to an <code>Animator</code> instance to receive callbacks on every animation 92617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * frame, after the current frame's values have been calculated for that 92717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * <code>Animator</code>. 92817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 92917fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase public static interface AnimatorUpdateListener { 93017fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase /** 93117fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * <p>Notifies the occurrence of another frame of the animation.</p> 93217fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * 93317fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase * @param animation The animation which was repeated. 93417fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase */ 93517fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase void onAnimationUpdate(Animator animation); 93617fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase 93717fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase } 93817fb4b0d1cfbad1f026fec704c86640f070b4c2fChet Haase}