setNotifyValue method

@override Future<bool> setNotifyValue(bool notify, { bool forceIndications = false, int timeout = 15, })

Sets notifications or indications for the characteristic.

• If a characteristic supports both notifications and indications, we use notifications. This is a limitation of CoreBluetooth on iOS.
• forceIndications Android Only. force indications to be used instead of notifications.

Implementation

@override
Future<bool> setNotifyValue(bool notify,
    {bool forceIndications = false, int timeout = 15}) async {
  if (!device.isConnected) {
    throw Exception('Cannot set notify value on a disconnected device');
  }

  if (notify) {
    _timer = Timer.periodic(const Duration(seconds: 5), (timer) {
      if (!device.isConnected) {
        _timer?.cancel();
        _timer = null;
        return;
      }
      // TODO: dynamic report data
      _notificationController.add(jsonEncode({
        "#": 27,
        "date": "20-02-14",
        "time": "16:05:04",
        "timestamp": 1644854704,
        "report": true,
        "cycles": 2445,
        "doses": 35,
        "event": 2
      }).codeUnits);
    });
  } else {
    _timer?.cancel();
    _timer = null;
  }
  return true;
}