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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Copyright (C) 2013 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 android.app;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.graphics.SurfaceTexture;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.Surface;
import android.view.TextureView;
import android.view.TextureView.SurfaceTextureListener;
import android.view.ViewGroup;
import android.view.WindowManager;
public class ActivityView extends ViewGroup {
private final TextureView mTextureView;
private IActivityContainer mActivityContainer;
private Activity mActivity;
private boolean mAttached;
private int mWidth;
private int mHeight;
public ActivityView(Context context) {
this(context, null);
}
public ActivityView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ActivityView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
while (context instanceof ContextWrapper) {
if (context instanceof Activity) {
mActivity = (Activity)context;
break;
}
context = ((ContextWrapper)context).getBaseContext();
}
if (mActivity == null) {
throw new IllegalStateException("The ActivityView's Context is not an Activity.");
}
mTextureView = new TextureView(context);
mTextureView.setSurfaceTextureListener(new ActivityViewSurfaceTextureListener());
addView(mTextureView);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
mTextureView.layout(l, t, r, b);
}
@Override
protected void onAttachedToWindow() {
try {
final IBinder token = mActivity.getActivityToken();
mActivityContainer =
ActivityManagerNative.getDefault().createActivityContainer(token, null);
} catch (RemoteException e) {
throw new IllegalStateException("ActivityView: Unable to create ActivityContainer. "
+ e);
}
final SurfaceTexture surfaceTexture = mTextureView.getSurfaceTexture();
if (surfaceTexture != null) {
createActivityView(surfaceTexture);
}
}
@Override
protected void onDetachedFromWindow() {
if (mActivityContainer != null) {
try {
mActivityContainer.deleteActivityView();
} catch (RemoteException e) {
}
mActivityContainer = null;
}
mAttached = false;
}
public void startActivity(Intent intent) {
if (mActivityContainer != null && mAttached) {
try {
mActivityContainer.startActivity(intent);
} catch (RemoteException e) {
throw new IllegalStateException("ActivityView: Unable to startActivity. " + e);
}
}
}
/** Call when both mActivityContainer and mTextureView's SurfaceTexture are not null */
private void createActivityView(SurfaceTexture surfaceTexture) {
WindowManager wm = (WindowManager)mActivity.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics metrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(metrics);
try {
mActivityContainer.createActivityView(new Surface(surfaceTexture), mWidth, mHeight,
metrics.densityDpi);
} catch (RemoteException e) {
mActivityContainer = null;
throw new IllegalStateException(
"ActivityView: Unable to create ActivityContainer. " + e);
}
mAttached = true;
}
private class ActivityViewSurfaceTextureListener implements SurfaceTextureListener {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width,
int height) {
mWidth = width;
mHeight = height;
if (mActivityContainer != null) {
createActivityView(surfaceTexture);
}
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width,
int height) {
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
try {
mActivityContainer.deleteActivityView();
// TODO: Add binderDied to handle this nullification.
mActivityContainer = null;
} catch (RemoteException r) {
}
mAttached = false;
return false;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
}
}
}
|
