Reachability 中未调用通知

发布于 2024-11-26 22:23:02 字数 463 浏览 4 评论 0原文

我使用了 Andrew's 修改后的 Reachability 类。

-(void)viewDidLoad

[[NSNotificationCenter defaultCenter] postNotificationName:kReachabilityChangedNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(checkNetworkStatus:) name:kReachabilityChangedNotification object:nil];

下载数据时，我关闭 AirPort。但是 checkNetworkStatus 没有被调用。我是不是错过了什么。请帮我。这个问题让我发疯。提前致谢。

原文

I have used Andrew's modified Reachability class.

-(void)viewDidLoad

[[NSNotificationCenter defaultCenter] postNotificationName:kReachabilityChangedNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(checkNetworkStatus:) name:kReachabilityChangedNotification object:nil];

When data is downloading I turn AirPort off. But checkNetworkStatus is not being called. Am I missing something. Please help me. This problem driving me nuts. Thanks in advance.

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放飞的风筝 2024-12-03 22:23:02

您是否告诉可达性实例开始广播通知？

Reachability *internetReachable = [Reachability reachabilityForInternetConnection];
// This will tell the notifier to start sending notifications
[internetReachable startNotifier];

Did you tell the reachability instance to start broadcasting notifications?

Reachability *internetReachable = [Reachability reachabilityForInternetConnection];
// This will tell the notifier to start sending notifications
[internetReachable startNotifier];

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野却迷人 2024-12-03 22:23:02

将其按此顺序放入

您的视图中并加载

首先注册

然后

发布该通知

[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(checkNetworkStatus:) name:kReachabilityChangedNotification object:nil];


[[NSNotificationCenter defaultCenter] postNotificationName:kReachabilityChangedNotification object:nil];

put it in this sequence

in ur view did load

First register

then

post that notification

[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(checkNetworkStatus:) name:kReachabilityChangedNotification object:nil];


[[NSNotificationCenter defaultCenter] postNotificationName:kReachabilityChangedNotification object:nil];

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本王不退位尔等都是臣 2024-12-03 22:23:02

我有完全相同的问题，Apple 的示例效果很好，所以我最终用 Apple 的版本替换了 Reachability 类，一切都很好。这花了我将近2个小时。

只需替换 Apple 示例中的 Reachability.h、.m，一切就应该可以正常工作。

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傲性难收 2024-12-03 22:23:02

这对我有用（斯威夫特）：

func handleNetworkChange(notification:NSNotification) { ... }

NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("handleNetworkChange:"), name: kReachabilityChangedNotification, object: nil)
ReachabilityChecker = Reachability.reachabilityForInternetConnection()
ReachabilityChecker!.startNotifier()

This worked for me (Swift):

func handleNetworkChange(notification:NSNotification) { ... }

NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("handleNetworkChange:"), name: kReachabilityChangedNotification, object: nil)
ReachabilityChecker = Reachability.reachabilityForInternetConnection()
ReachabilityChecker!.startNotifier()

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