IOS测试网络状态

  

   

    

     

    
    

     

      /第一次打开时判断网络状态
     
    
   

    

     

    
    

     

      - (int) connectedToNetwork
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          NSString *kindStr;
     
    
   

    

     

    
    

     

          int kind;
     
    
   

    

     

    
    

     

          //创建零地址，0.0.0.0的地址表示查询本机的网络连接状态
     
    
   

    

     

    
    

     

          struct sockaddr_in zeroAddress;
     
    
   

    

     

    
    

     

          bzero(&zeroAddress, sizeof(zeroAddress));
     
    
   

    

     

    
    

     

          zeroAddress.sin_len = sizeof(zeroAddress);
     
    
   

    

     

    
    

     

          zeroAddress.sin_family = AF_INET;
     
    
   

    

     

    
    

     

          // Recover reachability flags
     
    
   

    

     

    
    

     

          SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
     
    
   

    

     

    
    

     

          SCNetworkReachabilityFlags flags;
     
    
   

    

     

    
    

     

          //获得连接的标志
     
    
   

    

     

    
    

     

          BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
     
    
   

    

     

    
    

     

          CFRelease(defaultRouteReachability);
     
    
   

    

     

    
    

     

          //如果不能获取连接标志，则不能连接网络，直接返回
     
    
   

    

     

    
    

     

          if (!didRetrieveFlags)
     
    
   

    

     

    
    

     

          {
     
    
   

    

     

    
    

     

              kindStr = @"获取信息失败";
     
    
   

    

     

    
    

     

              kind = -1;
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          else{
     
    
   

    

     

    
    

     

              //根据获得的连接标志进行判断
     
    
   

    

     

    
    

     

              BOOL isReachable = flags & kSCNetworkFlagsReachable;
     
    
   

    

     

    
    

     

              BOOL needsConnection = flags & kSCNetworkFlagsConnectionRequired;
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     

              if((isReachable && !needsConnection)==YES)
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                  ///能够连接网络
     
    
   

    

     

    
    

     

                  if((flags& kSCNetworkReachabilityFlagsIsWWAN)==kSCNetworkReachabilityFlagsIsWWAN)
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      kindStr = @"手机网络";
     
    
   

    

     

    
    

     

                      kind = 0;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

                  else
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      kindStr =@"wifi连接网络";
     
    
   

    

     

    
    

     

                      kind = 1;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

              else{
     
    
   

    

     

    
    

     

                  kindStr =@"不能连接网络";
     
    
   

    

     

    
    

     

                  kind = -1;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          return kind;
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      设置网络监听
     
    
   

    

     

    
    

     

      -(void)SetJianCeNetwork
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          //开启网络状况的监听
     
    
   

    

     

    
    

     

          [[NSNotificationCenter defaultCenter] addObserver:self
     
    
   

    

     

    
    

     

                                                   selector:@selector(reachabilityChanged:)
     
    
   

    

     

    
    

     

                                                       name: kReachabilityChangedNotification
     
    
   

    

     

    
    

     

                                                     object: nil];
     
    
   

    

     

    
    

     

          hostReach = [[Reachability reachabilityWithHostname:@"www.xtox.net"] retain];//可以以多种形式初始化
     
    
   

    

     

    
    

     

          [hostReach startNotifier];  //开始监听,会启动一个run loop
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      // 连接改变
     
    
   

    

     

    
    

     

      - (void) reachabilityChanged: (NSNotification* )note
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          Reachability* curReach = [note object];
     
    
   

    

     

    
    

     

          NSParameterAssert([curReach isKindOfClass: [Reachability class]]);
     
    
   

    

     

    
    

     

          [self updateInterfaceWithReachability: curReach];
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     

      //处理网络连接改变后的情况
     
    
   

    

     

    
    

     

      - (void) updateInterfaceWithReachability: (Reachability*) curReach
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          //对连接改变做出响应的处理动作。
     
    
   

    

     

    
    

     

          NetworkStatus status = [curReach currentReachabilityStatus];
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

          if (status == NotReachable)
     
    
   

    

     

    
    

     

          {  //没有连接到网络就弹出提实况
     
    
   

    

     

    
    

     

              isNetType = -1;
     
    
   

    

     

    
    

     

              UIAlertView *alert =[[UIAlertView alloc]initWithTitle:nil message:@"网络连接失败,请检查网络" delegate:self cancelButtonTitle:@"确定" otherButtonTitles: nil];
     
    
   

    

     

    
    

     

              [alert show];
     
    
   

    

     

    
    

     

              [alert release];
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          else if(status == ReachableViaWiFi ||status == ReachableViaWWAN)
     
    
   

    

     

    
    

     

          {
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     

              if(status == ReachableViaWWAN)
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                  isNetType = 0;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

              else if(status == ReachableViaWiFi)
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                  isNetType = 1;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

              //
     
    
   

    

     

    
    

     

              NSThread *initThread = [[NSThread alloc]initWithTarget:self selector:@selector(InitThreadFunc:) object:self];
     
    
   

    

     

    
    

     

              [initThread start];
     
    
   

    

     

    
    

     

              return;
     
    
   

    

     

    
    

     
        
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     

      -(void)InitThreadFunc:(id)sender
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          //isNetType = [self connectedToNetwork];
     
    
   

    

     

    
    

     

          if(isNetType!=-1)
     
    
   

    

     

    
    

     

          {
     
    
   

    

     

    
    

     

              if([g_json Test]==YES)
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                 [g_json UserLogin:0 pass:nil];
     
    
   

    

     

    
    

     

                  [self GetUpdate];
     
    
   

    

     

    
    

     

                  return;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

              else
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                  isNetType = -1;
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

      }
     
    
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/8695213