如何检测iOS中的wifi网络变化 [英] How to detect wifi network change in iOS

问题描述

我正在开发 iOS 应用程序，我需要检测网络何时从 Wifi 连接更改为另一个 Wifi 连接或 Wifi 和 3G 之间.

I am working on iOS application and I would need to detect when network changes either from Wifi connection to another Wifi connection or between Wifi and 3G.

我尝试使用 Reachability 库，但它似乎没有检测到 Wifi 连接之间的变化.我可以使用什么?

I have tried using Reachability library but it seems it does not detect changes between Wifi connections. What can I use?

应用程序的目标是 App Store，所以我不能使用 Apple 的私有方法.

Target of the application would be App Store so I can't use private methods of Apple.

更新:经过一些测试后，我发现使用模拟器进行测试时效果很好.我收到通知没有任何问题.iphone的问题，也许?

UPDATE: After some testing I have found out that when testing using simulator it works perfectly. I get notifications without any problem. iphone problem, maybe?

提前致谢

推荐答案

请参考此链接 https://stackoverflow.com/a/19256197/1382157

另外一种方式，

- (BOOL)isReachable {
return [self isReachableViaWWAN] || [self isReachableViaWiFi];
}

- (BOOL)isReachableViaWWAN {// If this return true, means it is connected to 3g
return self.networkReachabilityStatus == 
AFNetworkReachabilityStatusReachableViaWWAN;
}

- (BOOL)isReachableViaWiFi { // If this return true, means it is connected to wifi
return self.networkReachabilityStatus == 
AFNetworkReachabilityStatusReachableViaWiFi;
}

确保正确初始化类并执行

make sure you initialize class properly and do

[self.manager.reachabilityManager startMonitoring]; 

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