第三方库Reachability检测网络状况

---

1.使用cocoapods配置第三方库

pod 'Reachability', '~> 3.2'

2.使用Reachability必须导入头文件

#import <Reachability/Reachability.h>

3.开始测试网络

1.测试当前网络的类型

NSLog(@"开启www.baidu.com网络检测");

Reachability *reach =[Reachability reachabilityWithHostname:@"www.baidu.com"];
NSLog(@"--current status: %@",reach.currentReachabilityString);

2.block块测试当前网络是否可用

reach.reachableBlock =^(Reachability *reachbi)
{
    dispatch_async(dispatch_get_main_queue()
                   , ^{
                       NSLog(@"网络可用");                       });
    
};
reach.unreachableBlock =^(Reachability *reachi)
{
    dispatch_async(dispatch_get_main_queue(), ^{
        NSLog(@"网络链接失败");
    });
    
} 

PS:监测网络状况可以使用 NotificationCenter