我应该使用哪个委托方法来响应NSTextField的点击？ [英] Which delegate method should I use to respond to clicks on an NSTextField?

问题描述

我想回应文本字段中的点击。当点击发生时，我打开一个面板。我最初的想法是使用委托方法来响应点击事件 - 但我发现：

I am trying to respond to a click within a textfield. When the click occurs, I am going to open a panel. My initial thought was to use a delegate method to respond to the click event - but I found that:

此方法无效：

(void)textDidBeginEditing:(NSNotification *)aNotification

这种方法可以工作， em>编辑 文本字段中的文本，而不是我第一次点击它。 - 如果我第二次编辑文本，此方法停止工作：

This method does work, but only when I actually edit the text within the text field, not when I first click it. And - if I edit the text a second time, this method stops working:

(void)controlTextDidBeginEditing:(NSNotification *)aNotification

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我可以尽可能多地使用一个代码示例，理想。我知道 nstextfield 继承自 NSControl ，它有一个 mouseDown 事件。是否有类似的方法用 textfield 来响应事件？

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I could use as much detail as possible - or a code example, ideally. I know that an nstextfield inherits from NSControl, which has a mouseDown event. Is there a similar way to respond to the event with a textfield, also?

推荐答案

由于 NSTextField 继承了 NSControl 类，它还继承了 - void）mouseDown：（NSEvent *）theEvent 方法。

Since NSTextField inherits from the NSControl class, it also inherits the -(void)mouseDown:(NSEvent*) theEvent method.

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