在iOS 7 iphone 5中使用错误的状态代码响应可达性 [英] Reachability responding with wrong status code in iOS 7 iphone 5

问题描述

我在使用iOS 7的iPhone 5上遇到了奇怪的问题，我已经测试过与其他设备相同的代码，如iPad1,2,3和iPhone 4,4s等，包括iOS 7在内的不同iOS组合。

I am facing weird problem on iPhone 5 with iOS 7, i have tested same code with other devices like iPad1, 2, 3 and iPhone 4, 4s etc. with different iOS combination including iOS 7.

问题：

当我打开飞机模式时，我会按预期获得状态<$的可达性通知c $ c> NotReachable 但是该应用程序收到状态代码 ReachableViaWWAN 的通知后不会发生这种情况。

When i turn on airplane mode i do get reachability notification as expected with status NotReachable but immediately after that app receives notification with status code ReachableViaWWAN which is not expected.

代码：

+(BOOL)checkReachability
{
    Reachability* internetReachable = [Reachability reachabilityForInternetConnection];
    NetworkStatus internetStatus = [internetReachable currentReachabilityStatus];
    switch (internetStatus)

    {
        case NotReachable:
        {
            DebugLog(@"The internet is down.");
            return NO;
            break;
        }
        default:
            return YES;
            break;
    }
    return YES;
}

我在切换之前添加了日志，返回状态为飞机模式中的ReachableViaWWAN ..

I added log before switch which is returning status as ReachableViaWWAN in airplane mode..

可能的解决方法可能是：

为 ReachableViaWWAN 添加案例，并在这种情况下检查主机是否可达。并相应地返回BOOL值。

Add case for ReachableViaWWAN and check host reachable in that case. And return BOOL value accordingly.

任何人遇到类似的问题？我搜索过但没有找到类似的情况。

Anyone faced similar problem ?? i have searched but haven't found similar scenario.

提前致谢!!

推荐答案

我遇到了同样的问题。解决方案是检查标志 isConnectionRequired 。文档说：

I had the same problem. The solution is to check the flag isConnectionRequired. The documentation says:

WWAN可能可用，但在建立连接之前不会处于活动状态。

WWAN may be available, but not active until a connection has been established.

代码

Code

BOOL isServerAvailable;
Reachability *reachability = [Reachability reachabilityForInternetConnection];

if ((reachability.isConnectionRequired) || (NotReachable == reachability.currentReachabilityStatus)) {
    isServerAvailable = NO;

} else if((ReachableViaWiFi == reachability.currentReachabilityStatus) || (ReachableViaWWAN == reachability.currentReachabilityStatus)){
    isServerAvailable = YES;
}

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