在NSTableCellView中使NSTextField firstResponder() [英] make NSTextField in NSTableCellView firstResponder()

问题描述

供那些不喜欢阅读20条评论的人寻找答案.这是对我有用的东西:

1. tableView是基于视图的，而不是基于单元格的(属性检查器)
2. tableView.reloadData()不够快.使用insertRow(at [0]:withAnimation:.leftSlide)可以正常工作
3. 确保NSTextField和NSTextFieldCell是可编辑的(属性检查器)

最终代码:

tableViewAlarms.insertRows(at: [0], withAnimation: .effectFade)

let keyView = tableViewAlarms.view(atColumn: 0, row: 0, makeIfNecessary: false) as! NSTableCellView

self.view.window!.makeFirstResponder(keyView.textField)

问题:

有一个问题.我被困了一段时间使我的NSTableView以我想要的方式工作.我是一个初学者，使用类，继承和视图会给我带来很多麻烦.

got one question. I have been stuck for some time making my NSTableView work the way I want it to. I'm a beginner and working with classes, inheritance, and views is giving me a lot of trouble.

屏幕截图，NSTextField已激活

您可以通过按"+"按钮向NSTableView添加一行.

you add a row to the NSTableView by pushing the '+' button.

第一个tableColumn中的NSTextField是可编辑的，并在双击时开始编辑

the NSTextField in the first tableColumn is editable and begins editing when double-clicked

现在，我希望添加行时自动激活第一列中的NSTextField(显示光标，响应通过键盘输入的文本).

now I want the NSTextField in the first column to be activated automatically (show cursor, responding to text input via keyboard) when a row is added.

到目前为止，我已经尝试过:

so far i have tried:

class NSTextFieldSubClass: NSTextField {

    override func becomeFirstResponder() -> Bool {
        return true
    }

}

我还尝试处理单元的绑定(或者精确地说是NSTextField本身)，但是由于我真的不知道如何解决这些问题，所以无济于事

I also played around with the bindings of the cell (or the NSTextField itself to be precise), but since I don't really know my way around those it went nowhere

我认为要走的路是

在创建单元格时使NSTextField成为firstResponder，但我不知道如何.任何帮助都将不胜感激！

make the NSTextField the firstResponder when the cell is created, but I don't know how. Any help is greatly appreciated!!

还:当光标闪烁时，如何精确地调用NSTextField的状态?

also: how exactly is the state of an NSTextField called when the cursor is blinking?

对于子类，这是我尝试过的所有内容:

as for the subclass, this is all I tried:

class NSTextFieldSubClass: NSTextField {

    override func becomeFirstResponder() -> Bool {
        return true
    }

}

编辑屏幕截图:

edit2:

edit3:

edit4:

推荐答案

不要子类.您可以直接在基于视图的表视图中将文本字段设为第一响应者.

Don't subclass NSTextField. You can make the text field in a view based table view first responder right out of the box.

这很容易.

假设您知道row和column(在您的示例中，第0行和第0列)使用view(atColumn: 0, row获取表格单元格视图，并将文本字段设为第一响应者.

Assuming you know row and column (in your example row 0 and column 0) get the table cell view with view(atColumn: 0, row and make the text field first responder.

let keyView = tableView.view(atColumn: 0, row: 0, makeIfNecessary: false) as! NSTableCellView
view.window!.makeFirstResponder(keyView.textField)

第二个出口是做什么的?只需使用标准的默认textField.

And what is the second outlet for? Just use the standard default textField.

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