总是在iOS7中无法访问

Question

早些时候我一直使用Tony Million的Reach-ability而且它总是工作正常。现在我也尝试过Apple的Reach-ability但是每次我尝试访问时我总是得到Internet而不是Reachable的响应。

还有什么我应该检查的吗？

这就是我做的

  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

您还可以使用它来检查Internet连接，首先您需要导入您的文件

#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，则可以使用Internet连接。

愿这对你有帮助......

Answer 2

如果遇到同样的问题，我打开Reachability.m文件并提交3g。

#if TARGET_OS_IPHONE
    if(flags & kSCNetworkReachabilityFlagsIsWWAN)
    {
       // We're on 3G.
       if(!self.reachableOnWWAN)
          {
          // We don't want to connect when on 3G.
           connectionUP = NO;//Commit this line
         }
    }
#endif

希望这能解决你的问题。

#if TARGET_OS_IPHONE
    if(flags & kSCNetworkReachabilityFlagsIsWWAN)
    {
       // We're on 3G.
       if(!self.reachableOnWWAN)
          {
          // We don't want to connect when on 3G.
           //connectionUP = NO;
         }
    }
#endif

Answer 3

    Reachability *r = [Reachability reachabilityWithHostName:@"www.Google.com"];
    NetworkStatus internetStatus = [r currentReachabilityStatus];

    if ((internetStatus != ReachableViaWiFi) && (internetStatus != ReachableViaWWAN))
    {
        blockLabel.text = @"Block Says Unreachable";
    }
    else
    {
        blockLabel.text = @"Block Says Reachable";
    }

Answer 4

旧的Reachability文件并不好。 Apple已更新其可访问性文件。

点击这里

https://developer.apple.com/Library/ios/samplecode/Reachability/Introduction/Intro.html

在这里下载。

https://developer.apple.com/Library/ios/samplecode/Reachability/Reachability.zip

Answer 5

我对Tony Million的Reachability有同样的问题：网络状态始终设置为NotReachable。 我通过添加SystemConfiguration Framework来修复它

希望能帮助到你