如何在ios中检查互联网连接？ [英] How to check internet connectivity in ios?

问题描述

如何检查应用是否已连接到互联网？
目前，我在 appdelegate.m 文件中使用此代码

How can I check whether the app is connected to the internet or not? currently, I am using this code in my appdelegate.m file

dispatch_queue_t connectivityThread = dispatch_queue_create("com.gm.kart.connectivity", NULL);

dispatch_async(connectivityThread, ^{
    while (true){
        if([GMMConnectivity hasConnectivity])
            NSLog(@"%@", @"connected");
        else
            NSLog(@"Not connected");

        usleep(10000000);
    }
});

当我点击登录按钮时，我想检查互联网是否已连接使用 NSnotificationcenter ？

and when I click my login button I want to do a check whether the internet is connected or not using NSnotificationcenter?

请帮帮我

推荐答案

下载后的示例。

http://developer.apple .com / iphone / library / samplecode / Reachability / index.html

您可以在项目中使用它，如下所示： -

you can use it in your Project like bellow steps:-

包括Apple的Reachability.h& .m来自他们的Reachability示例。

添加SystemConfiguration框架。

将bellow方法放入appdelegare.m文件中： -

put bellow method in to your appdelegare.m file:-

- (BOOL) connectedToNetwork{
    Reachability* reachability = [Reachability reachabilityWithHostName:@"google.com"];
    NetworkStatus remoteHostStatus = [reachability currentReachabilityStatus];

    if(remoteHostStatus == NotReachable)
    {
        isInternet =NO;
    }
    else if (remoteHostStatus == ReachableViaWWAN)
    {
        isInternet = TRUE;
    }
    else if (remoteHostStatus == ReachableViaWiFi)
    { isInternet = TRUE;

    }
    return isInternet;
}

isInternet是你的.h类中的BOOL declear

根据您的代码： -

as per your code:-

dispatch_queue_t connectivityThread = dispatch_queue_create("com.GMM.assamkart.connectivity", NULL);

dispatch_async(connectivityThread, ^{
    while (true){
       isInternet =[self connectedToNetwork];
    if (isInternet)
    {
           NSLog(@"connected");
        }
        else
        {
            NSLog(@"Not connected");
        }
       // usleep(10000000);
    }
});

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