swift - NSGridView 困难

Question

我在我的 macOS 应用程序的设置面板中使用 NSGridView。我是这样设置的:

class GeneralViewController: RootViewController {
    private var gridView: NSGridView?

    override func loadView() {
        super.loadView()

        let restaurantLabel = NSTextField()
        restaurantLabel.stringValue = "Restaurant"

        let restaurantButton = NSPopUpButton()
        restaurantButton.addItems(withTitles: ["A", "B", "C"])

        let updatesLabel = NSTextField()
        updatesLabel.stringValue = "Updates"
        updatesLabel.isEditable = false
        updatesLabel.isBordered = false
        updatesLabel.isBezeled = false

        let updatesButton = NSButton(checkboxWithTitle: "Automatically pull in updates from WordPress", target: nil, action: nil)

        let empty = NSGridCell.emptyContentView
        gridView = NSGridView(views: [
            [restaurantLabel, restaurantButton],
            [updatesLabel, updatesButton]
            ])
        gridView?.wantsLayer = true
        gridView?.layer?.backgroundColor = NSColor.red.cgColor
        gridView?.column(at: 0).xPlacement = .trailing
        gridView?.rowAlignment = .firstBaseline
        gridView?.setContentHuggingPriority(NSLayoutConstraint.Priority(rawValue: 600), for: .horizontal)
        gridView?.setContentHuggingPriority(NSLayoutConstraint.Priority(rawValue: 600), for: .vertical)

        view.addSubview(gridView!)
    }

    override func viewDidLayout() {
        super.viewDidLayout()

        gridView?.frame = NSRect(x: 0, y: 0, width: view.frame.size.width, height: view.frame.size.height)
    }
}

现在，当我运行它时，NSGridView 填满了整个 View ，但复选框确实关闭了。正如你在图片中看到的那样。

此外，我希望内容不会填满整个单元格，让所有内容看起来更居中。

我该如何解决这个问题？

Answer 1

如果将行对齐更改为 .lastBaseline，它将解决 NSButton 和 NSTextField 的垂直对齐问题。如果你想要更多的间距(我猜这就是你的意思“我希望内容不会填满整个单元格”)，你可以使用 columnSpacing 和 rowSpacing NSGridView 的属性。如果您随后还在“真实”内容周围添加 NSGridCell.emptyContentView 实例，您应该能够实现以下效果。

这是我建议的更改后的新代码:

class GeneralViewController: RootViewController {
    private var gridView: NSGridView?

    override func loadView() {
        super.loadView()

        let restaurantLabel = NSTextField()
        restaurantLabel.stringValue = "Restaurant"

        let restaurantButton = NSPopUpButton()
        restaurantButton.addItems(withTitles: ["A", "B", "C"])

        let updatesLabel = NSTextField()
        updatesLabel.stringValue = "Updates"
        updatesLabel.isEditable = false
        updatesLabel.isBordered = false
        updatesLabel.isBezeled = false

        let updatesButton = NSButton(checkboxWithTitle: "Automatically pull in updates from WordPress", target: nil, action: nil)

        let empty = NSGridCell.emptyContentView
        gridView = NSGridView(views: [
            [empty],
            [empty, restaurantLabel, restaurantButton, empty],
            [empty, updatesLabel, updatesButton, empty],
            [empty],
            [empty]
        ])
        gridView?.wantsLayer = true
        gridView?.layer?.backgroundColor = NSColor.red.cgColor
        gridView?.column(at: 0).xPlacement = .trailing
        gridView?.rowAlignment = .lastBaseline
        gridView?.columnSpacing = 20
        gridView?.rowSpacing = 20
                gridView?.setContentHuggingPriority(NSLayoutConstraint.Priority(rawValue: 600), for: .horizontal)
        gridView?.setContentHuggingPriority(NSLayoutConstraint.Priority(rawValue: 600), for: .vertical)

        view.addSubview(gridView!)
    }

    override func viewDidLayout() {
        super.viewDidLayout()

        gridView?.frame = NSRect(x: 0, y: 0, width: view.frame.size.width, height: view.frame.size.height)
    }
}