BLE外设不做广告

Question

我正在尝试创建一个简单的蓝牙 LE 外围设备来连接到预先存在的 Central。据我所知，我的 Peripheral Manager 设置正确，开始广告的调用已到位且服务 UUID 正确。但是，当我运行检查以确保我的外围设备确实在做广告时，我得到了否定结果

我仔细检查了我的 UUID 并确保我的测试设备上的蓝牙已打开。我也是用物理设备测试的，不是模拟器。

这里是用来设置我的周边广告的代码：

func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
    if peripheral.state == CBManagerState.poweredOn {
        service = CBMutableService.init(type: SERVICE_UUID, primary: true)

        characteristic = CBMutableCharacteristic.init(type: CHARACTERISTIC_UUID, properties: .read, value: nil, permissions: .readable)
        service?.characteristics = [characteristic!]

        peripheralManager?.add(service!)
        peripheralManager?.delegate = self

        let adData = [CBAdvertisementDataLocalNameKey : "MackJohn_Bluetooth_On_iOS", CBAdvertisementDataServiceUUIDsKey : SERVICE_UUID] as [String : Any]

        peripheralManager?.startAdvertising(adData)
    }
}

这里是我检查我的代码是否真的在做广告并得到错误结果的地方：

func peripheralManagerDidStartAdvertising(_ peripheral: CBPeripheralManager, error: Error?) {
    print(peripheral.isAdvertising)
}

我还注意到这个函数根本没有调用：

func peripheralManager(_ peripheral: CBPeripheralManager, didReceiveRead request: CBATTRequest) {
    print("Added Service")
}

Answer 1

你犯了一个小错误； CBAdvertisementDataServiceUUIDsKey 的值应该是 CBUUID 的数组，而不是单个 CBUUID;

let adData = [CBAdvertisementDataLocalNameKey : "MackJohn_Bluetooth_On_iOS", CBAdvertisementDataServiceUUIDsKey : [SERVICE_UUID]] as [String : Any]

BLE外设不做广告

BLE Peripheral Not Advertising

ios

core-bluetooth

bluetooth-lowenergy

swift