IOS-利用AFNetworking监听网络状态

步骤

• 1.创建网络监听者管理者对象

AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];

• 2.设置监听 
  
  • 网络状态

    //显然是枚举值
    typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
        AFNetworkReachabilityStatusUnknown          = -1,//未识别的网络
        AFNetworkReachabilityStatusNotReachable     = 0,//不可达的网络
        AFNetworkReachabilityStatusReachableViaWWAN = 1,//2G,3G,4G...
        AFNetworkReachabilityStatusReachableViaWiFi = 2,//wifi网络

-设置网络监听

[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        switch (status) {
            case AFNetworkReachabilityStatusUnknown:
                NSLog(@"未识别的网络");
                break;

            case AFNetworkReachabilityStatusNotReachable:
                NSLog(@"不可达的网络(未连接)");
                break;

            case AFNetworkReachabilityStatusReachableViaWWAN:
                NSLog(@"2G,3G,4G...的网络");
                break;

            case AFNetworkReachabilityStatusReachableViaWiFi:
                NSLog(@"wifi的网络");
                break;
            default:
                break;
        }
    }];

• 3.开始监听

[manager startMonitoring];

代码

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    //创建网络监听管理者对象
    AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];

    /* typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) { AFNetworkReachabilityStatusUnknown = -1,//未识别的网络 AFNetworkReachabilityStatusNotReachable = 0,//不可达的网络(未连接) AFNetworkReachabilityStatusReachableViaWWAN = 1,//2G,3G,4G... AFNetworkReachabilityStatusReachableViaWiFi = 2,//wifi网络 }; */
     //设置监听
    [manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        switch (status) {
            case AFNetworkReachabilityStatusUnknown:
                NSLog(@"未识别的网络");
                break;

            case AFNetworkReachabilityStatusNotReachable:
                NSLog(@"不可达的网络(未连接)");
                break;

            case AFNetworkReachabilityStatusReachableViaWWAN:
                NSLog(@"2G,3G,4G...的网络");
                break;

            case AFNetworkReachabilityStatusReachableViaWiFi:
                NSLog(@"wifi的网络");
                break;
            default:
                break;
        }
    }];
    //开始监听
    [manager startMonitoring];
}