this code must be changed as there‘s no longer a status bar or status bar window.

//请注意：该函数只有在显示状态栏的页面才能获取到2G/3G/4G网络
- (BGNetworkReachabilityStatus)getNetWorkStatesWithStatus : (AFNetworkReachabilityStatus)status
{
    if(AFNetworkReachabilityStatusUnknown == status)
    {
        return BGNetworkReachabilityStatusUnknown;
    }
    else if(AFNetworkReachabilityStatusNotReachable == status)
    {
        return BGNetworkReachabilityStatusNotReachable;
    }
    else if(AFNetworkReachabilityStatusReachableViaWiFi == status)
    {
        return BGNetworkReachabilityStatusReachableViaWiFi;
    }else if (@available(iOS 12.1, *))
    {
        return  [self getNetType];
    }
//    if(LL_iPhoneX)
//    {
//        return BGNetworkReachabilityStatusReachableViaWWAN;
//    }
    UIApplication *app = [UIApplication sharedApplication];
//    NSArray *children = [[[app valueForKeyPath:@"statusBar"]valueForKeyPath:@"foregroundView"]subviews];
    NSArray *children;
    // 不能用 [[self deviceVersion] isEqualToString:@"iPhone X"] 来判断，因为模拟器不会返回 iPhone X
//    NSLog(@"%@   %@", [[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"_statusBar"], [[[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"_statusBar"] valueForKeyPath:@"_statusBar.currentData"]);
    if (@available(iOS 13.0, *))
    {
        return BGNetworkReachabilityStatusReachableViaWWAN;
    }
    else
    {
        if ([[app valueForKeyPath:@"_statusBar"] isKindOfClass:NSClassFromString(@"UIStatusBar_Modern")]) {
            children = [[[[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"_statusBar"] valueForKeyPath:@"foregroundView"] subviews];
        }
        else
        {
            children = [[[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"foregroundView"] subviews];
            
    //        if ([[app valueForKeyPath:@"_statusBar"] isKindOfClass:NSClassFromString(@"UIStatusBar_Modern")]) {
    //            id curData = [statusBar valueForKeyPath:@"statusBar.currentData"];
    //            BOOL wifiEnable = [[curData valueForKeyPath:@"_wifiEntry.isEnabled"] boolValue];
    //            BOOL cellEnable = [[curData valueForKeyPath:@"_cellularEntry.isEnabled"] boolValue];
    //            // iPhone X上通过StatusBar只能获取到网络是WiFi还是蜂窝网
    //            // 当网络为蜂窝网的时候，无法获取到具体的网络状态
    //            if (wifiEnable) {
    //                states = @"WiFi";
    //            } else if (cellEnable) {
    //                states = @"Cellular";
    //            }

        }
        int netType = 0;
        //获取到网络返回码
        for (id child in children) {
            if ([child isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
                //获取到状态栏
                netType = [[child valueForKeyPath:@"dataNetworkType"]intValue];
                
                switch (netType) {
                    case 0:
                    {
                        NSLog(@"无网络");
                        //无网模式
                        return BGNetworkReachabilityStatusNotReachable;
                    }
                        break;
                    case 1:
                    {
                        NSLog(@"2G");
                        return BGNetworkReachabilityStatusReachableViaWWAN2G;
                    }
                        break;
                    case 2:
                    {
                        NSLog(@"3G");
                        return BGNetworkReachabilityStatusReachableViaWWAN3G;
                    }
                        break;
                    case 3:
                    {
                        NSLog(@"4G");
                        return BGNetworkReachabilityStatusReachableViaWWAN4G;
                    }
                    case 4:
                    {
                        NSLog(@"5G");
                        return BGNetworkReachabilityStatusReachableViaWWAN5G;
                    }
                        break;
                    case 5:
                    {
                        NSLog(@"wifi");
                        return BGNetworkReachabilityStatusReachableViaWWAN5G;
                    }
                        break;
                    default:
                        break;
                }
            }
            //根据状态选择
            return BGNetworkReachabilityStatusReachableViaWWAN;
        }
    }
  
    return BGNetworkReachabilityStatusReachableViaWWAN;
}