在Swift中使用Apple的可达性类 [英] Using Apple's reachability class in Swift

问题描述

我正在将现有的Objective-C代码(iOS)重写为 Swift 现在正遇到Apple Reachability类用于检查网络可用性的问题...在我现有的代码中，我使用以下代码来实现这一目的.

I am rewriting my existing Objective-C code (iOS) to Swift and now am facing some issues with the Reachability class of Apple for checking network availability... In my existing code I am using the following for achieving that.

var reachability: Reachability = Reachability.reachabilityForInternetConnection()
var internetStatus:NetworkStatus = reachability.currentReachabilityStatus()
if (internetStatus != NotReachable) {
    //my web-dependent code
}
else {
    //There-is-no-connection warning
}

我在以下行收到此错误:network status is not convertible to string:

And I am getting this error: network status is not convertible to string at this line:

if (internetStatus != NotReachable)

是否存在获取网络状态的方法或类?

Is there a method or class for getting network status?

我需要满足以下三个条件:

I need these three conditions:

NotReachable: Obviously, there’s no Internet connection
ReachableViaWiFi: Wi-Fi connection
ReachableViaWWAN: 3G or 4G connection

推荐答案

对于网络可用性(在Swift 2中有效):

For network availability (works in Swift 2):

class func hasConnectivity() -> Bool {
    let reachability: Reachability = Reachability.reachabilityForInternetConnection()
    let networkStatus: Int = reachability.currentReachabilityStatus().rawValue
    return networkStatus != 0
}

对于Wi-Fi连接:

(reachability.currentReachabilityStatus().value == ReachableViaWiFi.value)

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