iphone判断网络链接是否正常的代码详解手机开发

bzero( zeroAddress;, sizeof(zeroAddress)); zeroAddress.sin_len = sizeof(zeroAddress); zeroAddress.sin_family = AF_INET; SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *) zeroAddress;); SCNetworkReachabilityFlags flags; BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, flags;); CFRelease(defaultRouteReachability); if (!didRetrieveFlags) NSLog(@"Error. Could not recover network reachability flags"); return NO; BOOL isReachable = flags kSCNetworkFlagsReachable; BOOL needsConnection = flags kSCNetworkFlagsConnectionRequired; return (isReachable !needsConnection) ? YES : NO; }

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