Disable Bluetooth discoverable mode on Android

Question

I found in the Android documentation how to turn Bluetooth discoverability mode on:

Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DI         


        

Answer 1

Just send a new discoverable request with duration 1 (or 0 might even work):

Intent discoverableIntent = new
Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 1);
startActivity(discoverableIntent);

Answer 2

cancelDiscovery() is not for this. This method can be used to stop the scanning of your device for other bluetooth devices. It is different from this to make device not visible.

Answer 3

Care when using this method, it might be easily changed as it is hidden.

BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();  
try {
    Method method = BluetoothAdapter.class.getMethod("setScanMode", int.class);
    method.invoke(bluetoothAdapter, BluetoothAdapter.SCAN_MODE_CONNECTABLE);
} catch (NoSuchMethodException | IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
    Log.e(TAG, "Failed to turn off bluetooth device discoverability.", e);
}

Also usable with SCAN_MODE_NONE and SCAN_MODE_CONNECTABLE_DISCOVERABLE (uses default duration)

Source