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Comments (4)

lotalogic avatar lotalogic commented on September 21, 2024

Hi,
I have some kind of similar issue in the sense that my application works fine on android and not on iOs.
Do you have any idea why : #1184

from react-native-ble-manager.

lucaswitch avatar lucaswitch commented on September 21, 2024

Hi, I have some kind of similar issue in the sense that my application works fine on android and not on iOs. Do you have any idea why : #1184

I'm guessing it's not related to this issue, this issue happens on transmission between characteristics

from react-native-ble-manager.

lotalogic avatar lotalogic commented on September 21, 2024

Ok thanks

from react-native-ble-manager.

lucaswitch avatar lucaswitch commented on September 21, 2024

For anyone that could have this issue it can be solved on react-native app level.
In order to support many known short characteristics/services uuids we can do as following:

function onCharacteristicChange({
      value,
      peripheral,
      characteristic,
      service,
    }) {
      if (peripheral === id) {
        let isSameCharacteristic = false;
        let isSameService = false;

        // Characteristic
        if (characteristic.length === 4) {
          isSameCharacteristic =
            characteristic.toLowerCase() === shortCharacteristicId;
        } else {
          isSameCharacteristic =
            characteristic.toLowerCase() === characteristicId;
        }

        // Service
        if (service.length === 4) {
          isSameService = service.toLowerCase() === shortServiceId;
        } else {
          isSameService = service.toLowerCase() === serviceId;
        }

        if (isSameService && isSameCharacteristic) {
           console.log('it works');
        }
      }
 }

  let listener = BleManagerEmitter.addListener(
    "BleManagerDidUpdateValueForCharacteristic",
    onCharacteristicChange
  );
`

from react-native-ble-manager.

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