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      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 com.example.android.apis.R;
     20 
     21 import android.content.Context;
     22 import android.graphics.Canvas;
     23 import android.graphics.Color;
     24 import android.graphics.drawable.Drawable;
     25 import android.os.Bundle;
     26 import android.view.View;
     27 import android.view.animation.Animation;
     28 import android.view.animation.TranslateAnimation;
     29 
     30 public class AnimateDrawables extends GraphicsActivity {
     31 
     32     @Override
     33     protected void onCreate(Bundle savedInstanceState) {
     34         super.onCreate(savedInstanceState);
     35         setContentView(new SampleView(this));
     36     }
     37 
     38     private static class SampleView extends View {
     39         private AnimateDrawable mDrawable;
     40 
     41         public SampleView(Context context) {
     42             super(context);
     43             setFocusable(true);
     44             setFocusableInTouchMode(true);
     45 
     46             Drawable dr = context.getResources().getDrawable(R.drawable.beach);
     47             dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight());
     48 
     49             Animation an = new TranslateAnimation(0, 100, 0, 200);
     50             an.setDuration(2000);
     51             an.setRepeatCount(-1);
     52             an.initialize(10, 10, 10, 10);
     53 
     54             mDrawable = new AnimateDrawable(dr, an);
     55             an.startNow();
     56         }
     57 
     58         @Override
     59         protected void onDraw(Canvas canvas) {
     60             canvas.drawColor(Color.WHITE);
     61 
     62             mDrawable.draw(canvas);
     63             invalidate();
     64         }
     65     }
     66 }
     67 
     68