In the Samsung galaxy note 3, I have paired a bluetooth device. It is
paired sucessfully.
In my app I simply run this code in a thread to look for the bluetooth
device I am interested in and connect automatically to it.
Usually everything works well. But occasionally I will get an unwanted
Bluetooth Pairing request dialog popup. When this happened, I went to the
bluetooth settings and I can see the state is "pairing". My question is why
does an already paired device go into pairing again? And what can I do to
stop this from happening or get rid of that dialog? I don't want the user
to have to confirm to anything.
private void open() throws IOException {
> close();
> try {
> if (android.os.Build.VERSION.SDK_INT >=
> android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
> mSocket = mDevice.createInsecureRfcommSocketToServiceRecord(
> SPP_UUID);
> } else {
> mSocket = mDevice.createRfcommSocketToServiceRecord(SPP_UUID);
> }
> mSocket.connect();
> mIn = new DataInputStream(mSocket.getInputStream());
> mOut = new DataOutputStream(mSocket.getOutputStream());
> } catch (IOException ex) {
> close();
> throw ex;
> }
> }
public void run() {
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
int sleepDelay;
while(mFlag) {
sleepDelay = BLUETOOTH_RETRY_DISCOVERY_TIME;
Log.e(TAG, "discovering scanner");
if(adapter.isEnabled()) {
Set<BluetoothDevice> pairedDevices =
adapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
if(device.getName().startsWith("MY")) {
mPairedDevice = device.getName();
sleepDelay = BLUETOOTH_RETRY_CONNECTION_TIME
;
mDevice = device;
if(adapter.isDiscovering()) {
adapter.cancelDiscovery();
}
try {
open();
Log.e(TAG, "found bluetooth device and
connected ok");
// make sure this is the last thing to
be done no more scanner interaction after this
synchronized(mConnectThread) {
mConnectThread = null;
}
return;
} catch (Exception e) {
notifyUIIfNecessary(getContext().getResources().getString(R.string.
bluetoothscanner_turnon2));
closeConnection();
}
}
}
} else {
mPairedDevice = "";
notifyUIIfNecessary(getContext().getResources().getString(R.string.
bluetoothscanner_notpaired));
}
} else {
notifyUIIfNecessary(getContext().getResources().getString(R.string.
bluetoothscanner_adapterdisabled));
}
try {
sleep(sleepDelay);
} catch (InterruptedException e) {
}
}
}
}
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