NSTextField GotFocus事件Cocoa Swift [英] NSTextField GotFocus Event Cocoa Swift

问题描述

在swift Cocoa有一个事件，当NSTextField获得焦点编辑时触发。我来自C＃它有GotFocus（）和LostFocus（）事件。

In swift Cocoa is there an event that fires when a NSTextField gets focus for editing. I Come from C# which has GotFocus() and LostFocus() Events.

对于NSTextfield我可以找到只有这些功能，一旦开始打字。

For NSTextfield I could find only these functions which fire after one starts typing. Not as soon as focus is gained.

 override func controlTextDidBeginEditing(obj: NSNotification) {
 }

 func control(control: NSControl, textShouldBeginEditing fieldEditor: NSText) -> Bool {

 }

我需要这个，因为一旦有人开始编辑，我想展示更多的细节。

I Need this because as soon as someone starts editing, I want to show more detail. I have a simpler display name, and full name for editing.

感谢，

推荐答案

您可以继承NSTextField并覆盖becomeFirstResponder和resignFirstResponder。请检查此链接如何检测NSTextField何时具有焦点或是否是可选内容

You can subclass NSTextField and override becomeFirstResponder and resignFirstResponder. Please check this link How to detect when NSTextField has the focus or is it's content selected cocoa

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