1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.apis.graphics; 18 19 import android.graphics.Canvas; 20 import android.graphics.drawable.Drawable; 21 import android.view.animation.Animation; 22 import android.view.animation.AnimationUtils; 23 import android.view.animation.Transformation; 24 25 public class AnimateDrawable extends ProxyDrawable { 26 27 private Animation mAnimation; 28 private Transformation mTransformation = new Transformation(); 29 30 public AnimateDrawable(Drawable target) { 31 super(target); 32 } 33 34 public AnimateDrawable(Drawable target, Animation animation) { 35 super(target); 36 mAnimation = animation; 37 } 38 39 public Animation getAnimation() { 40 return mAnimation; 41 } 42 43 public void setAnimation(Animation anim) { 44 mAnimation = anim; 45 } 46 47 public boolean hasStarted() { 48 return mAnimation != null && mAnimation.hasStarted(); 49 } 50 51 public boolean hasEnded() { 52 return mAnimation == null || mAnimation.hasEnded(); 53 } 54 55 @Override 56 public void draw(Canvas canvas) { 57 Drawable dr = getProxy(); 58 if (dr != null) { 59 int sc = canvas.save(); 60 Animation anim = mAnimation; 61 if (anim != null) { 62 anim.getTransformation( 63 AnimationUtils.currentAnimationTimeMillis(), 64 mTransformation); 65 canvas.concat(mTransformation.getMatrix()); 66 } 67 dr.draw(canvas); 68 canvas.restoreToCount(sc); 69 } 70 } 71 } 72 73
