检测用户是否打开或关闭了Wifi或蓝牙 [英] Detecting if Wifi or Bluetooth is turned on or off by the user

问题描述

我们如何确定是否使用Swift语言打开/关闭了蓝牙或Wifi?

How can we determine if Bluetooth or Wifi was turned on/off using the Swift language?

我的应用程序使用Bluetooth或Wifi与其他设备进行通信.这些通信没有问题，但是我们想通知用户Wifi和/或蓝牙是否关闭(当用户使用该应用程序时).我无法在Swift中做到这一点.

My application uses Bluetooth or Wifi to communicate with other devices. We have no problem with these communications, but we would like to inform the user if Wifi and/or Bluetooth is turned off (when the user is using the application). I haven't been able to do this in Swift.

推荐答案

对于iOS中的蓝牙，您具有CBPeripheralManager(在CoreBluetooth Framework中).要检查蓝牙连接，请声明您的类为CBPeripheralManager的委托，然后创建一个本地变量:

For Bluetooth in iOS, you have CBPeripheralManager (in CoreBluetooth Framework). To check for bluetooth connection, you declare your class as delegate of CBPeripheralManager then create a local variable:

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

然后，您的班级必须实现回调，以在启用或禁用蓝牙时引起注意.下面的代码是从我的项目中提取的，该项目适用于信标管理器

then, your class must implement the callback to get noticed when your Bluetooth is enabled or disabled. The code below is extracted from my project which is for Beacon manager

//BT Manager
    func peripheralManagerDidUpdateState(peripheral: CBPeripheralManager!) {
        println(__FUNCTION__)
        if peripheral.state == CBPeripheralManagerState.PoweredOn {
            println("Broadcasting...")
            //start broadcasting
            myBTManager!.startAdvertising(_broadcastBeaconDict)
        } else if peripheral.state == CBPeripheralManagerState.PoweredOff {
            println("Stopped")
            myBTManager!.stopAdvertising()
        } else if peripheral.state == CBPeripheralManagerState.Unsupported {
            println("Unsupported")
        } else if peripheral.state == CBPeripheralManagerState.Unauthorized {
            println("This option is not allowed by your application")
        }
     }

对于Wifi，请看一下这个Github: https://github.com/ashleymills/Reachability .swift

And for Wifi, take a look at this Github: https://github.com/ashleymills/Reachability.swift

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