iOS 检测 3G 或 WiFi [英] iOS Detect 3G or WiFi

问题描述

我不确定这是否可行，但我有这种情况.

I am not sure if this is possible, but I have this scenario.

我在 UIWebView 中显示了一个网站，该网站在 UISegmentedController 中设置了链接.他们的网站可以检测您是使用 wifi 还是 3g 网络.

I have a website displayed in my UIWebView which has the link set in a UISegmentedController. They website can detect if you are on wifi or on the 3g network.

现在分段控制器指向 2 个不同的页面:1 - 一个 iPhone 友好的登录屏幕2 - 登录后的主页.

Now the segmented controller points to 2 different pages: 1 - An iPhone friendly login screen 2 - The home page, once you are logged in.

现在问题来了:

我可以对我的应用程序进行编程以检测它是 WIFI 还是 3G(我知道你可以这样做)，然后根据答案转到第 1 段或第 2 段

Can I program my application to detect whether it is to WIFI or 3G (I know you can do this), but then based on the answer go to segment 1 or 2

有点像这样:

if (iPhone device is on 3g) {
    Go to Segment 1;
} else {
    Go to Segment 0;
}

推荐答案

使用 Apple 提供的代码 这里

Using the code that Apple has provided here

Reachability *reachability = [Reachability reachabilityForInternetConnection];
[reachability startNotifier];

NetworkStatus status = [reachability currentReachabilityStatus];

if(status == NotReachable) 
{
    //No internet
}
else if (status == ReachableViaWiFi)
{
    //WiFi
}
else if (status == ReachableViaWWAN) 
{
    //3G
}

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