Ios 我可以在AppDelegate.m中注销NSNotificationCenter吗？

我正在我的

AppDelegate.m

中注册

可达性通知

，代码如下

 [[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(handleNetworkChange:)
                                             name:kReachabilityChangedNotification
                                           object:nil];
reachability = [Reachability reachabilityWithHostName:@"www.google.com"];
[reachability connectionRequired];
[reachability startNotifier];

我可以在AppDelegate.m中注销可达性通知程序吗

我正在尝试使用下面的代码注销可达性

-(void) dealloc
{
   [[NSNotificationCenter defaultCenter] removeObserver:self];
}

---

尝试将NotificationCenter addObserv代码放入

- (void)applicationDidBecomeActive:(UIApplication *)application {

 [[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(handleNetworkChange:)
                                             name:kReachabilityChangedNotification
                                           object:nil];
reachability = [Reachability reachabilityWithHostName:@"www.google.com"];
[reachability connectionRequired];
[reachability startNotifier];

}

并将其从：-

- (void)applicationWillResignActive:(UIApplication *)application
{

 [[NSNotificationCenter defaultCenter] removeObserver:self];
}

---

我应该在哪里使用这个？在AppDelegate.m或ViewController.m中？上述两种方法都是委托方法，请检入委托。m您只需将上述代码放入其中即可