iOS 网络检测并跳转到应用设置检查蜂窝网络是否打开

在 AppDelegate.m 里面- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 方法下调用网络检测方法

#pragma mark-监听网络
- (void)isNetworking
{
    // 开启网络指示器
    [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        switch (status) {
            case AFNetworkReachabilityStatusUnknown:
                CLog(@"未识别的网络");
                break;
            case AFNetworkReachabilityStatusNotReachable:
            {
                CLog(@"无网络连接");
                //跳转到“About”(关于本机)页面
                
                [UIAlertView bk_showAlertViewWithTitle:@"无网络连接" message:@"请检查网络环境，并确认开启网络访问权限！" cancelButtonTitle:@"取消" otherButtonTitles:@[@"检查网络"] handler:^(UIAlertView *alertView, NSInteger buttonIndex) {
                    if (buttonIndex == 1) {
                        [[UIApplication sharedApplication]openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
                    }
                }];
//                NSURL *url = [NSURL URLWithString:@"prefs:root=General&path=Network"];
//                if ([[UIApplication sharedApplication] canOpenURL:url])
//                {
//                    [[UIApplication sharedApplication] openURL:url];
//                }else{
//                    NSLog(@"can not open");
//                }
            }
                break;
            case AFNetworkReachabilityStatusReachableViaWiFi:
                CLog(@"WIFI");
                break;
            case AFNetworkReachabilityStatusReachableViaWWAN:
                CLog(@"蜂窝移动");
                break;
            default:
                break;
        }
    }];
    [[AFNetworkReachabilityManager sharedManager] startMonitoring];   
}

打开系统蜂窝网络设置的方法不推荐，可能上架会被拒，而且iOS10下面无法打开