AFN 无网络监控

直接把封装到请求里就好

 -(void)afn{
 //1.创建网络状态监测管理者
 AFNetworkReachabilityManager *manger = [AFNetworkReachabilityManager sharedManager];
 //开启监听，记得开启，不然不走block
 [manger startMonitoring];
 //2.监听改变
 [manger setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
 /*
 AFNetworkReachabilityStatusUnknown = -1,
 AFNetworkReachabilityStatusNotReachable = 0,
 AFNetworkReachabilityStatusReachableViaWWAN = 1,
 AFNetworkReachabilityStatusReachableViaWiFi = 2,
 */
 switch (status) {
 case AFNetworkReachabilityStatusUnknown:
 NSLog(@"未知");
 break;
 case AFNetworkReachabilityStatusNotReachable:
 NSLog(@"没有网络");
 break;
 case AFNetworkReachabilityStatusReachableViaWWAN:
 NSLog(@"3G|4G");
 break;
 case AFNetworkReachabilityStatusReachableViaWiFi:
 NSLog(@"WiFi");
 break;
 default:
 break;
 }
 }];
 }