ios - 在 iOS7 中总是无法访问

Question

之前我一直使用 Tony Million 的 Reach-ability它总是工作得很好。现在我也试过苹果的Reach-ability但每次我尝试访问时，我总是得到 Internet not Reachable 响应。

还有什么我应该检查的吗？

这是我做的

  Reachability * reach = [Reachability reachabilityWithHostname:@"www.google.com"];

    reach.reachableBlock = ^(Reachability * reachability)
    {
        dispatch_async(dispatch_get_main_queue(), ^{
            blockLabel.text = @"Block Says Reachable";
        });
    };

    reach.unreachableBlock = ^(Reachability * reachability)
    {
        dispatch_async(dispatch_get_main_queue(), ^{
            blockLabel.text = @"Block Says Unreachable";
        });
    };

    [reach startNotifier];

Answer 1

您还可以用于检查互联网连接，首先你需要导入你的文件

#import <SystemConfiguration/SCNetworkReachability.h>
#include <netinet/in.h>

在.h文件中

- (BOOL) connectedToNetwork
{

    struct sockaddr_in zeroAddress;
    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)
    {
        return NO;
    }

    BOOL isReachable = flags & kSCNetworkFlagsReachable;
    BOOL needsConnection = flags & kSCNetworkFlagsConnectionRequired;
    return (isReachable && !needsConnection) ? YES : NO;
}

如果此方法返回 YES，则互联网连接可用。

希望这对你有帮助...