导入AFNetworking库
导入头文件#import "AFNetworkReachabilityManager.h"
#import "AFNetworkReachabilityManager.h" //导入头文件
//监测方法
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;
}
}];
