在 macOS 上获取 SwiftUI Table 单击（列，行）对

将 a 传递View给TableColumns，并将点击手势添加到其中。

Table(people) {
    TableColumn("Given Name") { person in
        Text(person.givenName)
            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
            .contentShape(.rect)
            .onTapGesture {
                print("Clicked given name of \(person.id)")
            }
    }
    TableColumn("Family Name") { person in
        Text(person.familyName)
            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
            .contentShape(.rect)
            .onTapGesture {
                print("Clicked family name of \(person.id)")
            }
    }
    TableColumn("E-Mail Address") { person in
        Text(person.emailAddress)
            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
            .contentShape(.rect)
            .onTapGesture {
                print("Clicked email address of \(person.id)")
            }
    }
}

我已使用frame和contentShape来尽可能增加可点击区域。如果没有这些，表格单元格的空白部分将无法点击。

如果这仍然不令人满意，我建议NSTableView用 包裹NSViewRepresentable。您可以将其设置action为一个方法，然后在该方法中访问clickedColumn和clickedRow。

以下是一个简单的演示：

struct PeopleTableRepresentable: NSViewRepresentable {
    let people: [Person]
    let onClick: (Int, Int) -> Void
    
    static let givenNameCol = NSUserInterfaceItemIdentifier("givenName")
    static let familyNameCol = NSUserInterfaceItemIdentifier("familyName")
    static let emailAddressCol = NSUserInterfaceItemIdentifier("emailAddress")
    
    func makeNSView(context: Context) -> NSScrollView {
        let scrollView = NSScrollView()
        let tableView = NSTableView()
        scrollView.documentView = tableView
        scrollView.hasVerticalScroller = true
        scrollView.horizontalScrollElasticity = .none
        let givenNameCol = NSTableColumn(identifier: Self.givenNameCol)
        givenNameCol.title = "Given Name"
        tableView.addTableColumn(givenNameCol)
        let familyNameCol = NSTableColumn(identifier: Self.familyNameCol)
        familyNameCol.title = "Family Name"
        tableView.addTableColumn(familyNameCol)
        let emailAddressCol = NSTableColumn(identifier: Self.emailAddressCol)
        emailAddressCol.title = "Email Address"
        tableView.addTableColumn(emailAddressCol)
        tableView.delegate = context.coordinator
        tableView.dataSource = context.coordinator
        
        let contextMenu = NSMenu(title: "Context Menu")
        tableView.menu = contextMenu
        tableView.action = #selector(Coordinator.tableViewAction)
        tableView.target = context.coordinator
        context.coordinator.tableView = tableView
        return scrollView
    }
    
    func makeCoordinator() -> Coordinator {
        .init()
    }
    
    func updateNSView(_ nsView: NSScrollView, context: Context) {
        context.coordinator.people = people
        context.coordinator.onClick = onClick
        context.coordinator.tableView?.reloadData()
    }
    
    func sizeThatFits(_ proposal: ProposedViewSize, nsView: NSScrollView, context: Context) -> CGSize? {
        proposal.replacingUnspecifiedDimensions()
    }
    
    @MainActor
    class Coordinator: NSObject, NSTableViewDelegate, NSTableViewDataSource {
        var people: [Person] = []
        var onClick: ((Int, Int) -> Void)?
        weak var tableView: NSTableView?
        
        func numberOfRows(in tableView: NSTableView) -> Int {
            people.count
        }
        
        func tableView(_ tableView: NSTableView, shouldSelectRow row: Int) -> Bool {
            false
        }
        
        func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
            func stringValue() -> String {
                if tableColumn?.identifier == PeopleTableRepresentable.givenNameCol {
                    people[row].givenName
                } else if tableColumn?.identifier == PeopleTableRepresentable.familyNameCol {
                    people[row].familyName
                } else if tableColumn?.identifier == PeopleTableRepresentable.emailAddressCol {
                    people[row].emailAddress
                } else {
                    ""
                }
            }
            if let tableCell = tableView.makeView(withIdentifier: .init("itemCell"), owner: self) as? NSTableCellView,
               let textField = tableCell.textField {
                textField.stringValue = stringValue()
                return tableCell
            } else {
                let textField = NSTextField()
                textField.backgroundColor = NSColor.clear
                textField.translatesAutoresizingMaskIntoConstraints = false
                textField.isBordered = false
                textField.lineBreakMode = .byTruncatingTail
                
                // Create a cell
                let newCell = NSTableCellView()
                newCell.identifier = .init("itemCell")
                newCell.addSubview(textField)
                newCell.textField = textField
                
                NSLayoutConstraint.activate([
                    textField.centerYAnchor.constraint(equalTo: newCell.centerYAnchor),
                    textField.leftAnchor.constraint(equalTo: newCell.leftAnchor),
                    textField.rightAnchor.constraint(equalTo: newCell.rightAnchor),
                ])
                
                textField.stringValue = stringValue()
                textField.isEditable = false
                textField.maximumNumberOfLines = 1
                return newCell
            }
        }
        
        @objc func tableViewAction() {
            if let onClick, let tableView {
                onClick(tableView.clickedColumn, tableView.clickedRow)
            }
        }
    }
}

// ...

var body: some View {
    PeopleTableRepresentable(people: people) { col, row in
        print(col, row)
    }
}