[iOS] Bug with discoverAllServicesAndCharacteristics

I am implementing a simple component that scans and connects to a BLE device. The device I am trying to connect to is BLE test board. Here is the code I am using:

this.bleManager.connectToDevice(device.uuid)
      .then((device) => {
        console.log("DISCOVERING");
        return device.discoverAllServicesAndCharacteristics();
      })
      .then((device) => {
        console.log("DISCOVERED");
        this.setState({
          connectedGogglesId: device.uuid,
          connectedGoggles: device
        });
      })
      .then(() => {
        console.log("SUCCESS");
      }, (error) => {
        console.log(error);
      });

On Android, everything works fine, all services and characteristics are discovered and the “SUCCESS” message is printed. One iOS, however, the connection is successful, I see the bluetooth icon flash and turn white, it prints the “DISCOVERING” log message, but it just hangs on the discoverAllServicesAndCharacteristics call and never completes the discovery.

I’m using react-native 0.37 and the master branch of react-native-ble-plx. Any help or ideas at what might be causing this is GREATLY appreciated. Thanks!

[jchirschy]

Hi all,

I’m facing a similar issue with IOS. discoverAllServicesAndCharacteristics is rejecting with the following message :

Error: Device 2B71F4FC-AD01-45E0-ADB5-440174341B08 is not connected

I also get the following warning :

Sending StateChangeEvent with no listeners registered.

Nevertheless, when I test the connection with .isDeviceConnected, the promise resolves successfully. I’m using an Ipad Mini 4 and react-native-ble-plx 0.6.1. Sniffator discovers characteristics properly, so as Lightblue.

Is there something new with this issue ?

Thanks for your help.

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