在我的一个 iPhone 应用程序中，我需要确定设备是否有互联网连接.有人帮忙吗?

In one of my iPhone app, I need to find out whether there is internet connection with the device or not. Anyone pls help?

推荐答案

使用 Reachability 类.

Use Reachability class.

  if([self checkInternetConnected] ) 
  {
    NSLog(@"Internet connected
");
  } 


- (BOOL)checkInternetConnected 
{
    Reachability *reachability = [Reachability reachabilityForInternetConnection];  
    NetworkStatus networkStatus = [reachability currentReachabilityStatus]; 
    return !(networkStatus == NotReachable);
}

您可以在这里获得rechability类:下载示例 并将 Reachability.h 和 Reachability.m 添加到您的项目中.

You can get rechability class here : Download sample and add Reachability.h and Reachability.m into your project.