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
17package com.android.test.hwui;
18
19import android.app.Activity;
20import android.content.Context;
21import android.graphics.Bitmap;
22import android.graphics.BitmapFactory;
23import android.graphics.Canvas;
24import android.graphics.Paint;
25import android.graphics.PorterDuff;
26import android.graphics.PorterDuffXfermode;
27import android.os.Bundle;
28import android.util.Log;
29import android.view.Gravity;
30import android.view.View;
31import android.view.animation.Animation;
32import android.view.animation.ScaleAnimation;
33import android.widget.FrameLayout;
34
35@SuppressWarnings({"UnusedDeclaration"})
36public class BitmapsActivity extends Activity {
37    @Override
38    protected void onCreate(Bundle savedInstanceState) {
39        super.onCreate(savedInstanceState);
40        final BitmapsView view = new BitmapsView(this);
41        final FrameLayout layout = new FrameLayout(this);
42        layout.addView(view, new FrameLayout.LayoutParams(480, 800, Gravity.CENTER));
43        setContentView(layout);
44
45        ScaleAnimation a = new ScaleAnimation(1.0f, 2.0f, 1.0f, 2.0f,
46                ScaleAnimation.RELATIVE_TO_SELF, 0.5f,
47                ScaleAnimation.RELATIVE_TO_SELF,0.5f);
48        a.setDuration(2000);
49        a.setRepeatCount(Animation.INFINITE);
50        a.setRepeatMode(Animation.REVERSE);
51        view.startAnimation(a);
52    }
53
54    static class BitmapsView extends View {
55        private Paint mBitmapPaint;
56        private final Bitmap mBitmap1;
57        private final Bitmap mBitmap2;
58        private final PorterDuffXfermode mDstIn;
59
60        BitmapsView(Context c) {
61            super(c);
62
63            mBitmap1 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1);
64            mBitmap2 = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset2);
65
66            Log.d("Bitmap", "mBitmap1.isMutable() = " + mBitmap1.isMutable());
67            Log.d("Bitmap", "mBitmap2.isMutable() = " + mBitmap2.isMutable());
68
69            BitmapFactory.Options opts = new BitmapFactory.Options();
70            opts.inMutable = true;
71            Bitmap bitmap = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1, opts);
72            Log.d("Bitmap", "bitmap.isMutable() = " + bitmap.isMutable());
73
74            mBitmapPaint = new Paint();
75            mDstIn = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
76        }
77
78        @Override
79        protected void onDraw(Canvas canvas) {
80            super.onDraw(canvas);
81
82            canvas.translate(120.0f, 50.0f);
83            canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint);
84
85            canvas.translate(0.0f, mBitmap1.getHeight());
86            canvas.translate(0.0f, 25.0f);
87            canvas.drawBitmap(mBitmap2, 0.0f, 0.0f, null);
88
89            mBitmapPaint.setAlpha(127);
90            canvas.translate(0.0f, mBitmap2.getHeight());
91            canvas.translate(0.0f, 25.0f);
92            canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint);
93
94            mBitmapPaint.setAlpha(255);
95            canvas.translate(0.0f, mBitmap1.getHeight());
96            canvas.translate(0.0f, 25.0f);
97            mBitmapPaint.setColor(0xffff0000);
98            canvas.drawRect(0.0f, 0.0f, mBitmap2.getWidth(), mBitmap2.getHeight(), mBitmapPaint);
99            mBitmapPaint.setXfermode(mDstIn);
100            canvas.drawBitmap(mBitmap2, 0.0f, 0.0f, mBitmapPaint);
101
102            mBitmapPaint.reset();
103        }
104    }
105}
106