IOS测试网络状态

傷城~ 2023-10-18 14:17 103阅读 0赞

/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;
            }
        }
        
    }