monitorCharacteristicForDevice works fine on IOS but not on Android

Attempting to monitor changes and get the listener callback to fire when my hardware notifies the phone.

This code works as expected on IOS but I get no response from the listener on Android.

Followed these docs: https://polidea.github.io/react-native-ble-plx/#BleManager#monitorCharacteristicForDevice

Is there any known difference in functionality between the platforms? I’ve been digging around and logging out data in BleModule.java to try and get some feedback but I’m not getting anywhere.

Has anyone else had this problem?

These are my versions: "react-native": "^0.47.0-rc.1", "react-native-ble-plx": "^0.6.3",

The code in question:

let thisSubscription = this.manager.monitorCharacteristicForDevice(this.connectedDevice.id, this.serviceUUID, this.tagCharacteristicUUID, (err, characteristic) => {
  // console.log('monitorCharacteristicForDevice fires once');
  if(err) {
    console.log('Err from pen', err);
    return
  }
  console.log('data from pen: ', characteristic);
  let tagValue = utils.base64toHEX(characteristic.value)
  console.warn('Tag data: ', tagValue);
})

console.log('thisSubscription', thisSubscription);`

[Cierpliwy]

In version 0.8.0 I created a workaround, which caused some issues on our side. That’s why I reverted it. I think that this should be fixed in RxAndroidBle directly and probably will look into it on Friday (my open source days).

[dariuszseweryn]

Sit tight, I am currently working on the solution 😉