CBCentralManager iOS10 and iOS9

Question

So I\'m migrating to iOS10 but I also need my code to run on iOS9. I\'m using CoreBluetooth and CBCentralManagerDelegate. I can get my code to work for iOS10 however I need

Answer 1

func centralManagerDidUpdateState(central: CBCentralManager) {

    if #available(iOS 10.0, *)
    {
        switch (central.state) {

        case CBManagerState.PoweredOff:
            print("CBCentralManagerState.PoweredOff")

        case CBManagerState.Unauthorized:
            // Indicate to user that the iOS device does not support BLE.
            print("CBCentralManagerState.Unauthorized")
            break

        case CBManagerState.Unknown:
            // Wait for another event
            print("CBCentralManagerState.Unknown")
            break

        case CBManagerState.PoweredOn:
            print("CBCentralManagerState.PoweredOn")

            self.centralManager!.scanForPeripheralsWithServices([CBUUID(string:TRANSFER_UUID)], options:[CBCentralManagerScanOptionAllowDuplicatesKey: false])

        case CBManagerState.Resetting:
            print("CBCentralManagerState.Resetting")

        case CBManagerState.Unsupported:
            print("CBCentralManagerState.Unsupported")
            break
        }
    }
    else
    {

       switch central.state.rawValue
       {
        case 0: // CBCentralManagerState.Unknown
            print("CBCentralManagerState.Unknown")
        break

        case 1: // CBCentralManagerState.Resetting
        print("CBCentralManagerState.Resetting")


        case 2:// CBCentralManagerState.Unsupported
            print("CBCentralManagerState.Unsupported")
        break

        case 3: // CBCentralManagerState.unauthorized
            print("This app is not authorised to use Bluetooth low energy")
        break

        case 4: // CBCentralManagerState.poweredOff:
            print("Bluetooth is currently powered off.")

        case 5: //CBCentralManagerState.poweredOn:
            self.centralManager!.scanForPeripheralsWithServices([CBUUID(string:TRANSFER_UUID)], options:[CBCentralManagerScanOptionAllowDuplicatesKey: false])
            print("Bluetooth is currently powered on and available to use.")

        default:break
        }

    }

}