bluetoothAdapter

private void doDiscovery() {
Log.d("TAG", "doDiscovery()");

// Indicate scanning in the title
setProgressBarIndeterminateVisibility(true);
setTitle("discovering new devices");

// Turn on sub-title for new devices
findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);

// If we're already discovering, stop it
if (bluetoothAdapter.isDiscovering()) {
bluetoothAdapter.cancelDiscovery();
}

// Request discover from BluetoothAdapter
bluetoothAdapter.startDiscovery();
}