ios - 不使用 CBPeripheralManager 获取蓝牙开/关状态

Question

我实际上正在做一个 swift3 项目，它需要知道蓝牙是否在设备上激活。我已经阅读了很多关于这个主题的主题，但是除了使用 centralManagerDidUpdateState

之外，没有一个可以帮助我通过其他方式来做到这一点

实际上我有这段代码:

private func GetBluetoothInformation() {
    let options = [CBCentralManagerOptionShowPowerAlertKey:0]
    bluetoothPeripheralManager = CBPeripheralManager(delegate: self, queue: nil, options: options)
}

func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager) {
    var status: Bool = false

    switch peripheral.state {
    case .poweredOn:
        status = true
    default:
        status = false
    }
    m_session_chofer?.setIsBluetooth(status)
}

但这样做，我不知道每次调用 GetBluetoothInformation 是否会正确更新状态。

谢谢你的帮助，

Answer 1

var btManager = CBPeripheralManager(delegate: self, queue: nil, options: nil)

func peripheralManagerDidUpdateState(peripheral: CBPeripheralManager!) {
    println(__FUNCTION__)
    if peripheral.state == CBPeripheralManagerState.PoweredOn {
        println("Broadcast")
        btManager!.startAdvertising(_broadcastBeaconDict)
    } else if peripheral.state == CBPeripheralManagerState.PoweredOff {
        println("Stop")
        btManager!.stopAdvertising()
    } else if peripheral.state == CBPeripheralManagerState.Unsupported {
        println("Unsupport")
    } else if peripheral.state == CBPeripheralManagerState.Unauthorized {
        println("Not allow")
    }
 }