NSNotification，如果事件未注册，如何处理
[英]NSNotification, how to handle if event is not registered
问题描述
If I call an NSNotification and I have not registered to receive the event what will happen? 
如果我打电话给NSNotification并且我没有注册接收事件将会发生什么？ Will I get an runtime exception? 我会得到运行时异常吗？ If yes, how do I handle it? 如果是，我该如何处理？
Thanks 谢谢
1 个解决方案
解决方案1
4 已采纳 2011-10-12 13:36:54
If you mean posting a notification, nothing. 如果您的意思是发布通知，没有。 Posting a notification does not require a listener. 发布通知不需要监听器。
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.
相关问题
NSNotification如何运作 - How NSNotification works
如何使用NSNotification - How to use NSNotification
如何在if语句中检查NSNotification - How to check for an NSNotification in an if statement
如何创建一个 NSNotification - How to create an NSNotification
滚动内部UITableView时处理NSNotification - Handle NSNotification while scrolling a inner UITableView
如何与NSNotification一起发送字符串？ - How to send a string along with NSNotification?
如何在UIView中删除NSNotification的观察者？ - How to remove an observer for NSNotification in a UIView?
如何正确设置NSNotification并发布？ - How to correctly setup NSNotification and post?
目标C-如何访问NSNotification内部对象？ - Objective C - How to access NSNotification inner objects?
如何使特定观察者听到NSNotification？ - how to make the NSNotification heard by the specific observer?
相关标签