19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.graphics.drawable; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParser; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParserException; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * An object used to create frame-by-frame animations, defined by a series of Drawable objects, 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be used as a View object's background. 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The simplest way to create a frame-by-frame animation is to define the animation in an XML 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * file, placed in the res/drawable/ folder, and set it as the background to a View object. Then, call 3634235c6eded32fa6840db7a0f38e0e2905aff8b0Scott Main * {@link #start()} to run the animation. 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * An AnimationDrawable defined in XML consists of a single <code><animation-list></code> element, 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and a series of nested <code><item></code> tags. Each item defines a frame of the animation. 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the example below. 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>spin_animation.xml file in res/drawable/ folder:</p> 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <pre><!-- Animation frames are wheel0.png -- wheel5.png files inside the 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * res/drawable/ folder --> 45f7917e656b94ec2adfc3fa826e093665d39748d2Chet Haase * <animation-list android:id="@+id/selected" android:oneshot="false"> 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel0" android:duration="50" /> 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel1" android:duration="50" /> 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel2" android:duration="50" /> 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel3" android:duration="50" /> 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel4" android:duration="50" /> 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <item android:drawable="@drawable/wheel5" android:duration="50" /> 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </animation-list></pre> 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Here is the code to load and play this animation.</p> 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <pre> 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // Load the ImageView that will host the animation and 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // set its background to our AnimationDrawable XML resource. 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ImageView img = (ImageView)findViewById(R.id.spinning_wheel_image); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * img.setBackgroundResource(R.drawable.spin_animation); 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // Get the background, which has been compiled to an AnimationDrawable object. 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AnimationDrawable frameAnimation = (AnimationDrawable) img.getBackground(); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // Start the animation (looped playback by default). 65f5534a0785db9dfa239d8b6c20b011993742d534Chet Haase * frameAnimation.start(); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </pre> 673aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * 683aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <div class="special reference"> 693aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <h3>Developer Guides</h3> 703aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <p>For more information about animating with {@code AnimationDrawable}, read the 713aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * <a href="{@docRoot}guide/topics/graphics/drawable-animation.html">Drawable Animation</a> 723aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * developer guide.</p> 733aef8e1d1b2f0b87d470bcccf37ba4ebb6560c45Joe Fernandez * </div> 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AnimationDrawable_visible 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AnimationDrawable_variablePadding 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AnimationDrawable_oneshot 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AnimationDrawableItem_duration 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AnimationDrawableItem_drawable 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 81b5537c452271634b6ff3981b0624fa65384abd5bRomain Guypublic class AnimationDrawable extends DrawableContainer implements Runnable, Animatable { 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final AnimationState mAnimationState; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCurFrame = -1; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mMutated; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AnimationDrawable() { 87c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn this(null, null); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean setVisible(boolean visible, boolean restart) { 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean changed = super.setVisible(visible, restart); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (visible) { 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (changed || restart) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFrame(0, true, true); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleSelf(this); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Starts the animation, looping if necessary. This method has no effect 1059366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * if the animation is running. Do not call this in the {@link android.app.Activity#onCreate} 1069366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * method of your activity, because the {@link android.graphics.drawable.AnimationDrawable} is 1079366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * not yet fully attached to the window. If you want to play 1089366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * the animation immediately, without requiring interaction, then you might want to call it 1099366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * from the {@link android.app.Activity#onWindowFocusChanged} method in your activity, 1109366ce81dbaa1c954911ef1c8d5791bb4a69d89cRobert Ly * which will get called when Android brings your window into focus.</p> 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isRunning() 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #stop() 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void start() { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isRunning()) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project run(); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Stops the animation. This method has no effect if the animation is 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not running.</p> 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isRunning() 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #start() 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void stop() { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isRunning()) { 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleSelf(this); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Indicates whether the animation is currently running or not.</p> 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the animation is running, false otherwise 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isRunning() { 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCurFrame > -1; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This method exists for implementation purpose only and should not be 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called directly. Invoke {@link #start()} instead.</p> 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #start() 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nextFrame(false); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unscheduleSelf(Runnable what) { 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurFrame = -1; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.unscheduleSelf(what); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of frames in the animation 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getNumberOfFrames() { 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAnimationState.getChildCount(); 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The Drawable at the specified frame index 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getFrame(int index) { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAnimationState.getChildren()[index]; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The duration in milliseconds of the frame at the 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified index 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getDuration(int i) { 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAnimationState.mDurations[i]; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True of the animation will play once, false otherwise 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isOneShot() { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAnimationState.mOneShot; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets whether the animation should play once or repeat. 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oneShot Pass true if the animation should only play once 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOneShot(boolean oneShot) { 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.mOneShot = oneShot; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Add a frame to the animation 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param frame The frame to add 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param duration How long in milliseconds the frame should appear 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addFrame(Drawable frame, int duration) { 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.addFrame(frame, duration); 205f5534a0785db9dfa239d8b6c20b011993742d534Chet Haase if (mCurFrame < 0) { 206f5534a0785db9dfa239d8b6c20b011993742d534Chet Haase setFrame(0, true, false); 207f5534a0785db9dfa239d8b6c20b011993742d534Chet Haase } 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void nextFrame(boolean unschedule) { 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int next = mCurFrame+1; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = mAnimationState.getChildCount(); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (next >= N) { 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project next = 0; 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFrame(next, unschedule, !mAnimationState.mOneShot || next < (N - 1)); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void setFrame(int frame, boolean unschedule, boolean animate) { 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame >= mAnimationState.getChildCount()) { 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurFrame = frame; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectDrawable(frame); 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (unschedule) { 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleSelf(this); 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animate) { 229f7917e656b94ec2adfc3fa826e093665d39748d2Chet Haase // Unscheduling may have clobbered this value; restore it to record that we're animating 230f7917e656b94ec2adfc3fa826e093665d39748d2Chet Haase mCurFrame = frame; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scheduleSelf(this, SystemClock.uptimeMillis() + mAnimationState.mDurations[frame]); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void inflate(Resources r, XmlPullParser parser, AttributeSet attrs) 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws XmlPullParserException, IOException { 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = r.obtainAttributes(attrs, 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawable); 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.inflateWithAttributes(r, parser, a, 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawable_visible); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.setVariablePadding(a.getBoolean( 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawable_variablePadding, false)); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.mOneShot = a.getBoolean( 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawable_oneshot, false); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int type; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int innerDepth = parser.getDepth()+1; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int depth; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((type=parser.next()) != XmlPullParser.END_DOCUMENT && 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((depth = parser.getDepth()) >= innerDepth || type != XmlPullParser.END_TAG)) { 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (type != XmlPullParser.START_TAG) { 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (depth > innerDepth || !parser.getName().equals("item")) { 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a = r.obtainAttributes(attrs, com.android.internal.R.styleable.AnimationDrawableItem); 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int duration = a.getInt( 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawableItem_duration, -1); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (duration < 0) { 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new XmlPullParserException( 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parser.getPositionDescription() 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + ": <item> tag requires a 'duration' attribute"); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int drawableRes = a.getResourceId( 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AnimationDrawableItem_drawable, 0); 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable dr; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawableRes != 0) { 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dr = r.getDrawable(drawableRes); 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((type=parser.next()) == XmlPullParser.TEXT) { 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Empty 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (type != XmlPullParser.START_TAG) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new XmlPullParserException(parser.getPositionDescription() + 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ": <item> tag requires a 'drawable' attribute or child tag" + 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " defining a drawable"); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dr = Drawable.createFromXmlInner(r, parser, attrs); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.addFrame(dr, duration); 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dr != null) { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dr.setCallback(this); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFrame(0, true, false); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable mutate() { 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mMutated && super.mutate() == this) { 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState.mDurations = mAnimationState.mDurations.clone(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMutated = true; 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return this; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static class AnimationState extends DrawableContainerState { 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mDurations; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mOneShot; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 317c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn AnimationState(AnimationState orig, AnimationDrawable owner, 318c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn Resources res) { 319c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn super(orig, owner, res); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (orig != null) { 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDurations = orig.mDurations; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOneShot = orig.mOneShot; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDurations = new int[getChildren().length]; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOneShot = true; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable newDrawable() { 332c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn return new AnimationDrawable(this, null); 333c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn } 334c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn 335c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn @Override 336c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn public Drawable newDrawable(Resources res) { 337c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn return new AnimationDrawable(this, res); 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addFrame(Drawable dr, int dur) { 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not combine the following. The array index must be evaluated before 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the array is accessed because super.addChild(dr) has a side effect on mDurations. 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pos = super.addChild(dr); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDurations[pos] = dur; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void growArray(int oldSize, int newSize) { 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.growArray(oldSize, newSize); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] newDurations = new int[newSize]; 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mDurations, 0, newDurations, 0, oldSize); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDurations = newDurations; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 356c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn private AnimationDrawable(AnimationState state, Resources res) { 357c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn AnimationState as = new AnimationState(state, this, res); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAnimationState = as; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setConstantState(as); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state != null) { 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFrame(0, true, false); 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 366