ios - 如何检查WIFI按钮是否已启用(iOS)

Question

我希望能够检查用户是否已连接到WiFi，但未连接到网络。因此，基本上我想在设备设置页面上检查WiFi按钮的状态，以检查按钮是启用还是禁用。

目前，我可以按照以下步骤检查Wifi是否已连接到网络或未连接到网络:

BOOL hasWiFiNetwork = NO;
NSArray *interfaces = CFBridgingRelease(CNCopySupportedInterfaces());
for (NSString *interface in interfaces)
{
    NSDictionary *networkInfo = CFBridgingRelease(CNCopyCurrentNetworkInfo((__bridge CFStringRef)(interface)));
    if (networkInfo != NULL)
    {
        hasWiFiNetwork = YES;
        break;
    }
    else
    {
        hasWiFiNetwork = NO;
        break;
    }
}

Answer 1

更新

事实证明这是不可能的，没有API / Framework / BOOL值可以做到这一点，因为Apple尚未添加任何功能来检查开发人员是否打开或关闭WiFi。正如在这里很好解释的:https://stackoverflow.com/a/12906461/4657588

然后，此SO帖子应该是您想要的:https://stackoverflow.com/a/7938778/4657588

Reachability *reachability = [Reachability reachabilityForInternetConnection];
[reachability startNotifier];

NetworkStatus status = [reachability currentReachabilityStatus];

if (status == ReachableViaWiFi) {
    // WiFi
}

else {
    // Either WiFi is off or we are not connected to a WiFi network.
}