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.os.Bundle;
26 import android.util.Log;
27 import android.view.Gravity;
28 import android.view.View;
29 import android.widget.FrameLayout;
30 
31 @SuppressWarnings({"UnusedDeclaration"})
32 public class BitmapsAlphaActivity extends Activity {
33     @Override
onCreate(Bundle savedInstanceState)34     protected void onCreate(Bundle savedInstanceState) {
35         super.onCreate(savedInstanceState);
36         final BitmapsView view = new BitmapsView(this);
37         final FrameLayout layout = new FrameLayout(this);
38         layout.addView(view, new FrameLayout.LayoutParams(480, 800, Gravity.CENTER));
39         setContentView(layout);
40     }
41 
42     static class BitmapsView extends View {
43         private Paint mBitmapPaint;
44         private final Bitmap mBitmap1;
45         private final Bitmap mBitmap2;
46         private Bitmap mBitmap3;
47 
BitmapsView(Context c)48         BitmapsView(Context c) {
49             super(c);
50 
51             Log.d("OpenGLRenderer", "Loading sunset1, default options");
52             mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1);
53             Log.d("OpenGLRenderer", "Loading sunset2, default options");
54             mBitmap2 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset2);
55             Log.d("OpenGLRenderer", "Loading sunset3, forcing ARGB-8888");
56             BitmapFactory.Options opts = new BitmapFactory.Options();
57             opts.inPreferredConfig = Bitmap.Config.ARGB_8888;
58             mBitmap3 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset3, opts);
59             Log.d("OpenGLRenderer", "    has bitmap alpha? " + mBitmap3.hasAlpha());
60 
61             mBitmapPaint = new Paint();
62         }
63 
64         @Override
onDraw(Canvas canvas)65         protected void onDraw(Canvas canvas) {
66             super.onDraw(canvas);
67 
68             Log.d("OpenGLRenderer", "================= Draw");
69 
70             canvas.translate(120.0f, 50.0f);
71             canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint);
72 
73             canvas.translate(0.0f, mBitmap1.getHeight());
74             canvas.translate(0.0f, 25.0f);
75             canvas.drawBitmap(mBitmap2, 0.0f, 0.0f, null);
76 
77             canvas.translate(0.0f, mBitmap2.getHeight());
78             canvas.translate(0.0f, 25.0f);
79             canvas.drawBitmap(mBitmap3, 0.0f, 0.0f, null);
80         }
81     }
82 }
83