1、#import "Reachability.h"//引头文件
2、[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachabilityChanged:) name:kReachabilityChangedNotification object:nil];//注册通知，网络变动时会有回调
NSString *remoteHostName = @"www.apple.com";
self.hostReachability = [Reachability reachabilityWithHostName:remoteHostName];// 测试服务器状态
[self.hostReachability startNotifier];// 在当前程序的运行回路中开始监听网络请求可到达的通知
3、通知函数
- (void) reachabilityChanged:(NSNotification *)note
{
Reachability* curReach = [note object];
NSParameterAssert([curReach isKindOfClass:[Reachability class]]);
[self stringFromStatus:curReach.currentReachabilityStatus];
}
4、当前网络状况
-(NSString *)stringFromStatus:(NetworkStatus)status
{
NSString *string;
switch (status) {
case NotReachable:
string=@"无网络";
break;
case ReachableViaWiFi:
string=@"wifi环境";
break;
case ReachableViaWWAN:
string=@"移动网络";
break;
default:
string=@"未知";
break;
}
return string;
}
