ios – 无法通过CBCentral Manager扫描iBecon信号的服务ID

概述使用Core Bluetooth处理iBecon信号我能够使用CBCentralManager扫描选项搜索nil： – Shared.sharedInstance.centralManager?.scanForPeripherals(withServices: nil, options:[CBCentralManagerScanOptionAllowDuplicatesKey:true]) 但是, 使用Core Bluetooth处理iBecon信号我能够使用CBCentralManager扫描选项搜索nil： –

Shared.sharedInstance.centralManager?.scanForperipherals(withServices: nil,options:[CBCentralManagerScanoptionAllowDuplicatesKey:true])

但是,当我提供我理想的服务ID,即： –

Shared.sharedInstance.centralManager?.scanForperipherals(withServices: [serviceID],options:[CBCentralManagerScanoptionAllowDuplicatesKey:true])

它从不调用dIDdiscoverPeripheral Delegate方法,我也需要在后台模式下扫描外设,并且根据Apple文档,您需要在需要在后台模式下扫描时明确提供服务ID.任何人都可以帮助我在这里做错事.

解决方法 我这样用,
连接按钮单击事件
并使用CBCentralManagerDelegate,CBPeripheralDelegate Delegate

func connectDevice(sender:UIbutton){                if peripheral != nil {                    manager.cancelPeripheralConnection(peripheral)                    manager = CBCentralManager(delegate: self,queue: nil)                }        } func centralManagerDIDUpdateState(central: CBCentralManager) {        if central.state == CBCentralManagerState.PoweredOn {            central.scanForperipheralsWithServices(nil,options: nil)        } else {            self.showAlert(Messages().alert,message: "Bluetooth is not on.")        }    } func centralManager(central: CBCentralManager,dIDdiscoverPeripheral peripheral: CBPeripheral,advertisementData: [String : AnyObject],RSSI: NSNumber) {        let device = (advertisementData as NSDictionary).objectForKey(CBAdvertisementDataLocalnameKey) as? Nsstring        print(device)        if device?.containsstring(BEAN_name) == true {            self.manager.stopScan()            self.peripheral = peripheral            self.peripheral.delegate = self            manager.connectPeripheral(peripheral,options: nil)        }    }

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