Companion Gists to the Introduction to Core Bluetooth Class

00-StartingPoint-00.swift

extension ITCB_SDK_Central {  
    override var _managerInstance: Any! {  
        get {  
            if super._managerInstance == nil {  
                print("Creating A new instance of CBCentralManager.")
                super._managerInstance = CBCentralManager(delegate: self, queue: nil)  
            }

            return super._managerInstance  
        }

        set {  
            super._managerInstance = newValue  
        }
    }  
}

00-StartingPoint-01.swift

extension ITCB_SDK_Central: CBCentralManagerDelegate {
    public func centralManagerDidUpdateState(_ centralManager: CBCentralManager) { }
}

00-StartingPoint-02.swift

        if centralManager.state == .poweredOn {  
            print("Scanning for Peripherals")  
            centralManager.scanForPeripherals(withServices: [_static_ITCB_SDK_8BallServiceUUID], options: nil)  
        }

00-StartingPoint-03.swift

internal let _static_ITCB_SDK_RSSI_Min = -60  
internal let _static_ITCB_SDK_RSSI_Max = -20

00-StartingPoint-04.swift

    public func centralManager(_ centralManager: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String: Any], rssi: NSNumber) {  
        if  !devices.contains(where: { $0.uuid == peripheral.identifier.uuidString }),  
            let peripheralName = peripheral.name,  
            !peripheralName.isEmpty,  
            (_static_ITCB_SDK_RSSI_Min..._static_ITCB_SDK_RSSI_Max).contains(rssi.intValue) {  
            print("Peripheral Discovered: \(peripheralName), RSSI: \(rssi)")  
            devices.append(ITCB_SDK_Device_Peripheral(peripheral, owner: self))  
            print("Connecting to \(peripheralName).")  
            centralManager.connect(peripheral, options: nil)  
        }
    }

00-StartingPoint-05.swift

    public func centralManager(_ centralManager: CBCentralManager, didConnect peripheral: CBPeripheral) {  
        print("Successfully Connected to \(peripheral.name ?? "ERROR").")  
        print("Discovering Services for \(peripheral.name ?? "ERROR").")  
        peripheral.discoverServices([_static_ITCB_SDK_8BallServiceUUID])  
    }