我有一个主视图, 它将设置面板调用为另一个视图, 与页面曲线转换 。 似乎一切都很好, 但当我关闭设置视图时, 它不会触发我主视图的“ view WillAppear” 方法, 引起很多麻烦, 因为它无法根据设置更新 。
有个
提前感谢。
而不是对视图作出反应, 您也许应该对设置变化作出反应。 我的意思是, 使用 < a href=" http:// developmenter. apple. com/library/mac/#documentation/ Cocoa/Confitual/KeyValueObserv/KeyValueObsession.html" rel=“ nofollow noreferrer" >Key-Valueservor (KVO) 将会是一个更可靠的设计, 以便您能够被告知您对代表您设置的对象的更改 。
Alternatively, if you can t or don t want to observe a specific object, you can use NSNotificationCenter and have your settings view fire a notification when the new settings are applied and your other view can register to listen to those notifications.
Here is a simple example of that.
我希望这能帮助解决你的问题
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