使用WLAN获取应用程序＆amp;蜂窝设置

Question

如何在下图中获得Apps Using WLAN & Cellular Setting设置状态？
如何查看我的应用程序的状态（无，WLAN，WLAN和移动电话），以便我可以显示警告以提醒用户打开此开关〜

Answer 1

我终于找到了解决方案〜

：d

当Reachability为NotReachable时，有两种情况，

1. 未连接wifi
2. Apps Using WLAN & Cellular Setting     关闭

如果我们可以获得当前wifi的SSID，我们可以判断wifi已连接且网络开关已关闭〜

#import <SystemConfiguration/CaptiveNetwork.h>

    BOOL networkSwitchOff = NO;
    Reachability *reach = [Reachability reachabilityForInternetConnection];
    NetworkStatus status = [reach currentReachabilityStatus];
    if(status==NotReachable){  //Reachability NotReachable
        NSArray *supportedInterfaces = (__bridge_transfer id)CNCopySupportedInterfaces();
        id info = nil;
        NSString *ssid = nil;
        for (NSString *networkInfo in supportedInterfaces) {
            info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)networkInfo);
            if (info && [info count])
                break;
        }

        if (info) {
            NSDictionary *dctySSID = (NSDictionary *)info;
            //we can't get ssid if wifi is not connected
            ssid = [dctySSID objectForKey:@"SSID"]; 
        }
        networkSwitchOff = (ssid!=nil);
    }