1/*
2 * Copyright (C) 2012 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.Canvas;
22import android.graphics.Paint;
23import android.os.Bundle;
24import android.view.View;
25import android.widget.LinearLayout;
26
27@SuppressWarnings("UnusedDeclaration")
28public class MultiLayersActivity extends Activity {
29    @Override
30    protected void onCreate(Bundle savedInstanceState) {
31        super.onCreate(savedInstanceState);
32
33        LinearLayout grid = new LinearLayout(this);
34        grid.setOrientation(LinearLayout.VERTICAL);
35
36        LinearLayout row1 = new LinearLayout(this);
37        row1.setOrientation(LinearLayout.HORIZONTAL);
38        grid.addView(row1, new LinearLayout.LayoutParams(
39                LinearLayout.LayoutParams.MATCH_PARENT, 0, 1.0f));
40
41        LinearLayout row2 = new LinearLayout(this);
42        row2.setOrientation(LinearLayout.HORIZONTAL);
43        grid.addView(row2, new LinearLayout.LayoutParams(
44                LinearLayout.LayoutParams.MATCH_PARENT, 0, 1.0f));
45
46        row1.addView(new LayerView(this, 0xffff0000), new LinearLayout.LayoutParams(
47                0, LinearLayout.LayoutParams.MATCH_PARENT, 1.0f));
48        row1.addView(new LayerView(this, 0x0f00ff00), new LinearLayout.LayoutParams(
49                0, LinearLayout.LayoutParams.MATCH_PARENT, 1.0f));
50
51        row2.addView(new LayerView(this, 0x0f0000ff), new LinearLayout.LayoutParams(
52                0, LinearLayout.LayoutParams.MATCH_PARENT, 1.0f));
53        row2.addView(new LayerView(this, 0xffffff00), new LinearLayout.LayoutParams(
54                0, LinearLayout.LayoutParams.MATCH_PARENT, 1.0f));
55
56        setContentView(grid);
57    }
58
59    private class LayerView extends View {
60        private final Paint mPaint;
61
62        public LayerView(Context context, int color) {
63            super(context);
64            mPaint = new Paint();
65            mPaint.setColor(color);
66            setLayerType(LAYER_TYPE_HARDWARE, null);
67        }
68
69        @Override
70        protected void onDraw(Canvas canvas) {
71            canvas.drawRect(0.0f, 0.0f, getWidth(), getHeight(), mPaint);
72            invalidate();
73        }
74    }
75}
76