1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.dreams.basic;
import android.service.dreams.DreamService;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.os.Handler;
import android.os.HandlerThread;
/**
* Plays a delightful show of colors.
* <p>
* This dream performs its rendering using OpenGL on a separate rendering thread.
* </p>
*/
public class Colors extends DreamService implements SurfaceHolder.Callback {
static final String TAG = Colors.class.getSimpleName();
static final boolean DEBUG = false;
public static void LOG(String fmt, Object... args) {
if (!DEBUG) return;
Log.v(TAG, String.format(fmt, args));
}
private SurfaceView mSurfaceView;
// The handler thread and handler on which the GL renderer is running.
private HandlerThread mRendererHandlerThread;
private Handler mRendererHandler;
// The current GL renderer, or null if the dream is not running.
private ColorsGLRenderer mRenderer;
@Override
public void onCreate() {
super.onCreate();
setInteractive(false);
mSurfaceView = new SurfaceView(this);
mSurfaceView.getHolder().addCallback(this);
if (mRendererHandlerThread == null) {
mRendererHandlerThread = new HandlerThread(TAG);
mRendererHandlerThread.start();
mRendererHandler = new Handler(mRendererHandlerThread.getLooper());
}
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
setInteractive(false);
setLowProfile(true);
setFullscreen(true);
setContentView(mSurfaceView);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
LOG("surfaceCreated(%s, %d, %d)", holder.getSurface(),
holder.getSurfaceFrame().width(), holder.getSurfaceFrame().height());
mRendererHandler.post(new Runnable() {
@Override
public void run() {
if (mRenderer != null) {
mRenderer.stop();
}
mRenderer = new ColorsGLRenderer(holder.getSurface(),
holder.getSurfaceFrame().width(), holder.getSurfaceFrame().height());
mRenderer.start();
}
});
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
LOG("surfaceChanged(%s, %d, %d, %d)", holder.getSurface(), format, width, height);
mRendererHandler.post(new Runnable() {
@Override
public void run() {
if (mRenderer != null) {
mRenderer.setSize(width, height);
}
}
});
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
LOG("surfaceDestroyed(%s)", holder.getSurface());
mRendererHandler.post(new Runnable() {
@Override
public void run() {
if (mRenderer != null) {
mRenderer.stop();
mRenderer = null;
}
mRendererHandlerThread.quit();
}
});
try {
mRendererHandlerThread.join();
} catch (InterruptedException e) {
LOG("Error while waiting for renderer", e);
}
}
}
|
