textDidChange与controlTextDidChange [英] textDidChange vs controlTextDidChange
本文介绍了textDidChange与controlTextDidChange的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
有人可以向我解释为什么textDidChange无法处理我的委托，而controlTextDidChange可以从NSTextField运行.
- (void)controlTextDidChange:(NSNotification *)aNotification{
NSBeep();
}
来自
- (void)textDidChange:(NSNotification *)aNotification{
NSBeep();
}
解决方案
controlTextDidChange: is the correct delegate method defined on NSTextField (inherited from NSControl).
textDidChange: is a method that, when called on NSTextField, makes it behave as if its text changed (including calling the above method). It is not a delegate method for you to implement.
It's a little inconsistent of Apple as they do have a textDidChange: delegate method on UISearchBarDelegate.
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