connectionStateStream property

Implementation

@override
Stream<BluetoothConnectionState> get connectionStateStream {
  _connectionStateStream ??= _connectionStateChannel
      .receiveBroadcastStream()
      .map((event) {
    final state = BluetoothConnectionState.values[event['state']];
    _currentState = state;
    if (state == BluetoothConnectionState.disconnected) {
      _connectedDevice = null;
    }
    return state;
  });
  return _connectionStateStream!;
}