How can I know if the data was successfully transmitted to another
device using Bluetooth? Is there a pre-made function in Bluetooth API?
I have here an edited source code sample of BluetoothChat
in my BluetoothChatService.java
------------------------------------------------
[code]
public void write(byte[] buffer) {
Log.e("write function service","write function triggered");
try {
mmOutStream.write(buffer);
String logWriteBuf = new String(buffer);
Log.e("write function trycatch",logWriteBuf);
// Share the sent message back to the UI Activity
mHandler.obtainMessage(BluetoothChat.MESSAGE_WRITE,
-1, -1, buffer)
.sendToTarget();
} catch (IOException e) {
Log.e(TAG, "Exception during write", e);
}
}
[/code]
------------------------------------------------------------------------------------------
and the handler will call this switch statement in BluetoothChat
------------------------------------------------------------------------------------------
case MESSAGE_WRITE:
Log.e("handleMessage", "- message write -");
byte[] writeBuf = (byte[]) msg.obj;
// construct a string from the buffer
String writeMessage = new String(writeBuf);
mConversationArrayAdapter.add("Me: " + writeMessage);
break;
-----------------------------------------------------------------------------------------------------
As far as I understand, the line
mmOutStream.write(buffer);
will send the data to the device?
PS: The only clue that I know is the device with Bluetooth will
automatically reply to the Android phone when that device received a
string-formatted data, and the device does not reply any message when
I tried to transmit the data-string in the Android phone.
Thanks in advance.
JR
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