网络状态监测

IOS开发过程中网络状态的监测
(1) 苹果自带的Reachability
注意:Build Phases 中的 Compile Sources中Reachability.m设置

核心代码:

@property (nonatomic, strong) Reachability *reach;

- (void)viewDidLoad {
    [super viewDidLoad];
    //发送状态改变的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(networkStatusChanged) name:kReachabilityChangedNotification object:nil];

    //获取Reachability对象
    _reach = [Reachability reachabilityForInternetConnection];

    //开始监听网络
    [self.reach startNotifier];   
}
- (void)dealloc{
    [self.reach stopNotifier];
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    [self checkNetworkState];
}

- (void)networkStatusChanged{
    NSLog(@"网络状态改变");   
    [self checkNetworkState];
}

/** 监听网络改变 */
- (void)checkNetworkState{
    if ([self isWifi]){
        NSLog(@"WIFI");
    }else if([self isWan]){
        NSLog(@"WAN");
    }else{
        NSLog(@"无网络连接");
    }
}
/** 判断是否为wifi */
- (BOOL)isWifi{
    Reachability *wifi = [Reachability reachabilityForLocalWiFi];
    //获取当前的状态
    NetworkStatus wifiStatus = wifi.currentReachabilityStatus;

    if (wifiStatus != NotReachable) {
        return YES;
    }else{
        return NO;
    }
}

/** 判断是否为WAN */
- (BOOL)isWan{
    Reachability *wan = [Reachability reachabilityForInternetConnection];
    NetworkStatus wanStatus = wan.currentReachabilityStatus;
    if (wanStatus != NotReachable) {
        return YES;
    }else{
        return NO;
    }
}

2 用 AFNetworking 框架中的 AFNetworkReachabilityManager 实现网络状态监听:

@property (nonatomic, strong) AFNetworkReachabilityManager *mgr;

- (void)afnStatus{
    self.mgr = [AFNetworkReachabilityManager manager];
    [self.mgr setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        switch (status) {
            case AFNetworkReachabilityStatusUnknown:
                NSLog(@"未知原因");
                break;
            case AFNetworkReachabilityStatusNotReachable:
                NSLog(@"无网络连接");
                break;
            case AFNetworkReachabilityStatusReachableViaWiFi:
                NSLog(@"WIFI");
                break;
            case AFNetworkReachabilityStatusReachableViaWWAN:
                NSLog(@"WAN");
                break;
            default:
                break;
        }
    }];
    [self.mgr startMonitoring];
}

- (void)dealloc{
    [self.mgr stopMonitoring];
}