Epson BT-2000 Developers Guide - Page 76

setPreviewCallback

Get Epson BT-2000 PDF manuals and user guides View all Epson BT-2000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 76 highlights

6.7.13. setPreviewCallback  Function When the callback method described in 6.6.12 is registered, it is called each time image data is acquired. The registered callback method is executed repeatedly while previewing.  Format void setPreviewCallback ( Camera.PreviewCallback cb );  Parameter Model name Camera.PreviewCallback cb in/out Explanation in Callback object that receives image data.  Return value None.  Usage procedure // App developer applies processing when acquiring image data private Camera.PreviewCallback mPreviewCB = new Camera.PreviewCallback() { @Override public void onPreviewFrame(byte data[], Camera camera) { Log.d(TAG, "Save preview image"); synchronized (lockObject) { savePreviewData(data); } } }; //Register the callback method at the optimal time camera.setPreviewCallback(mPreviewCB); // When you remove the callback method, register null camera.setPreviewCallback(null); MOVERIO Pro Developer's Guide (Rev.1.0) 72

  • 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
  • 164
  • 165
  • 166
  • 167
  • 168
MOVERIO Pro Developer's Guide (Rev.1.0)
72
6.7.13.
setPreviewCallback
Function
When the callback method described in 6.6.12 is registered, it is called each time
image data is acquired. The registered callback method is executed repeatedly while
previewing.
Format
Parameter
Model
name
in/out
Explanation
Camera.PreviewCallback cb
in
Callback object that receives image data.
Return value
None.
Usage procedure
void setPreviewCallback (
Camera.PreviewCallback cb
);
// App developer applies processing when acquiring image data
private Camera.PreviewCallback mPreviewCB = new
Camera.PreviewCallback() {
@Override
public void onPreviewFrame(byte data[], Camera camera) {
Log.d(TAG, "Save preview image");
synchronized (lockObject) {
savePreviewData(data);
}
}
};
//Register the callback method at the optimal time
camera.setPreviewCallback(mPreviewCB);
・・・・・・
// When you remove the callback method, register null
camera.setPreviewCallback(null);