CoreBluetooth：CBPeripheral没有成员setnotifyValue iOS 10.0

Question

I am working on an app where i need to have a bluetooth connection with external device and i successfully made connection with external device.

Now, in below CBPeripheralManager delegate generate error in iOS 10 and working perfectly in iOS 9.0

func peripheral(peripheral: CBPeripheral, didDiscoverCharacteristicsForService service: CBService, error: NSError?) {

    if serviceCharacteristics.keys.contains(service.UUID) {
        guard let characteristics = service.characteristics else { return }

        peripheral.setNotifyValue(true, forCharacteristic: characteristics[0])

}

I am getting error in the below line,

peripheral.setNotifyValue(true, forCharacteristic: characteristics[0])

It says that CBPeripheral has no member setNotifyValue. I don't get it. I did some workaround but not getting any help.

Answer 1

Are you using Swift 3? The method signature has changed to setNotifyValue(_:for:) , ie:

peripheral.setNotifyValue(true, for: characteristics[0])

Answer 2

Did you migrate to swift 3? The new syntax uses "for" instead of "forCharacteristic":

peripheral.setNotifyValue(true, for: characteristics[0])