1 /*
2  * Copyright (C) 2010 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.android.test.hwui;
18 
19 import android.app.Activity;
20 import android.content.Context;
21 import android.graphics.Bitmap;
22 import android.graphics.BitmapFactory;
23 import android.graphics.Canvas;
24 import android.graphics.Paint;
25 import android.graphics.PorterDuff;
26 import android.graphics.PorterDuffXfermode;
27 import android.os.Bundle;
28 import android.util.Log;
29 import android.view.Gravity;
30 import android.view.View;
31 import android.view.animation.Animation;
32 import android.view.animation.ScaleAnimation;
33 import android.widget.FrameLayout;
34 
35 @SuppressWarnings({"UnusedDeclaration"})
36 public class MipMapActivity extends Activity {
37     @Override
onCreate(Bundle savedInstanceState)38     protected void onCreate(Bundle savedInstanceState) {
39         super.onCreate(savedInstanceState);
40         final BitmapsView view = new BitmapsView(this);
41         setContentView(view);
42     }
43 
44     static class BitmapsView extends View {
45         private Paint mBitmapPaint;
46         private final Bitmap mBitmap1;
47         private final Bitmap mBitmap2;
48 
BitmapsView(Context c)49         BitmapsView(Context c) {
50             super(c);
51 
52             mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.very_large_photo);
53             mBitmap2 = BitmapFactory.decodeResource(c.getResources(), R.drawable.very_large_photo);
54 
55             mBitmap1.setHasMipMap(true);
56 
57             mBitmapPaint = new Paint();
58             mBitmapPaint.setFilterBitmap(true);
59         }
60 
61         @Override
onDraw(Canvas canvas)62         protected void onDraw(Canvas canvas) {
63             super.onDraw(canvas);
64 
65             canvas.save();
66             canvas.scale(0.3f, 0.3f);
67             canvas.drawBitmap(mBitmap1, 0, 0, mBitmapPaint);
68             canvas.restore();
69 
70             canvas.save();
71             canvas.translate(mBitmap1.getWidth() * 0.3f + 96.0f, 0.0f);
72             canvas.scale(0.3f, 0.3f);
73             canvas.drawBitmap(mBitmap2, 0, 0, mBitmapPaint);
74             canvas.restore();
75         }
76     }
77 }
78