使用Reachability检测网格


#pragma mark - 网络连接检查
- (void) currentReach
{
    //  网络检测
    Reachability *curReach = [Reachability reachabilityForInternetConnection];

    switch ([curReach currentReachabilityStatus]) {
        case NotReachable:

            [BlockView getToastWithContent: @"无法连接网络！" target: self.window];

            break;
        case ReachableViaWiFi:

            [BlockView getToastWithContent: @"Wifi已连接！" target: self.window];

            break;
        case ReachableViaWWAN:

            [BlockView getToastWithContent: @"3G上网中" target: self.window];

            break;
        default:
            break;
    }

}