在类中设置CoreBluetooth peripheral.delegate

class MyBluetoothManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate {
    var centralManager: CBCentralManager!
    var peripheral: CBPeripheral!
    
    override init() {
        super.init()
        centralManager = CBCentralManager(delegate: self, queue: nil)
    }
    
    // CBCentralManagerDelegate方法
    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        if central.state == .poweredOn {
            centralManager.scanForPeripherals(withServices: nil, options: nil)
        }
    }
    
    // CBCentralManagerDelegate方法
    func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
        if peripheral.name == "MyBluetoothDevice" {
            self.peripheral = peripheral
            self.peripheral.delegate = self // 设置代理对象
            centralManager.stopScan()
            centralManager.connect(peripheral, options: nil)
        }
    }
    
    // CBPeripheralDelegate方法
    func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
        if let services = peripheral.services {
            for service in services {
                peripheral.discoverCharacteristics(nil, for: service)
            }
        }
    }
    
    // CBPeripheralDelegate方法
    func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
        if let characteristics = service.characteristics {
            for characteristic in characteristics {
                if characteristic.properties.contains(.notify) {
                    peripheral.setNotifyValue(true, for: characteristic)
                }
            }
        }
    }
    
    // CBPeripheralDelegate方法
    func peripheral(_ peripheral: CBPeripheral, didUpdateValueFor characteristic: CBCharacteristic, error: Error?) {
        if let value = characteristic.value {
            // 处理接收到的数据
        }
    }
}