connect method

Future<ConnectionStatus> connect(BlueDevice device, { Duration timeout = const Duration(seconds: 5), })

When connecting, reassign value selectedDevice from parameter device and if connection time more than timeout will return ConnectionStatus.timeout When connection success, will return ConnectionStatus.connected

Implementation

Future<ConnectionStatus> connect(
  BlueDevice device, {
  Duration timeout = const Duration(seconds: 5),
}) async {
  selectedDevice = device;
  try {
    if (Platform.isAndroid) {
      final blue_thermal.BluetoothDevice bluetoothDeviceAndroid =
          blue_thermal.BluetoothDevice(
              selectedDevice?.name ?? '', selectedDevice?.address ?? '');
      await _bluetoothAndroid?.connect(bluetoothDeviceAndroid);
    } else if (Platform.isIOS) {
      _bluetoothDeviceIOS = flutter_blue.BluetoothDevice.fromProto(
        proto.BluetoothDevice(
          name: selectedDevice?.name ?? '',
          remoteId: selectedDevice?.address ?? '',
          type: proto.BluetoothDevice_Type.valueOf(selectedDevice?.type ?? 0),
        ),
      );
      final List<flutter_blue.BluetoothDevice> connectedDevices =
          await _bluetoothIOS?.connectedDevices ??
              <flutter_blue.BluetoothDevice>[];
      final int deviceConnectedIndex = connectedDevices
          .indexWhere((flutter_blue.BluetoothDevice bluetoothDevice) {
        return bluetoothDevice.id == _bluetoothDeviceIOS?.id;
      });
      if (deviceConnectedIndex < 0) {
        await _bluetoothDeviceIOS?.connect();
      }
    }

    _isConnected = true;
    selectedDevice?.connected = true;
    return Future<ConnectionStatus>.value(ConnectionStatus.connected);
  } on Exception catch (error) {
    print('$runtimeType - Error $error');
    _isConnected = false;
    selectedDevice?.connected = false;
    return Future<ConnectionStatus>.value(ConnectionStatus.timeout);
  }
}