👀 Views: 0 💬 Answers: 1 📅 Created: 2025-08-24

macos NSTableView SwiftUI Swift

I'm stuck on something that should probably be simple... I'm dealing with I've been researching this but I'm relatively new to this, so bear with me. I'm working with an scenario with my custom `NSTableView` implementation in a macOS 13.6 app. I've created a subclass of `NSTableView` and implemented the `NSTableViewDelegate` methods to handle row selection. However, when I select a row, it doesn't visually highlight as expected. Instead, it briefly highlights and then goes back to the unselected state. I've ensured that my delegate methods are wired up correctly, and here’s the relevant code snippet: ```swift class CustomTableView: NSTableView, NSTableViewDelegate { override func awakeFromNib() { self.delegate = self self.dataSource = self } func numberOfRows(in tableView: NSTableView) -> Int { return 10 // Example row count } func tableView(_ tableView: NSTableView, objectValueFor tableColumn: NSTableColumn?, row: Int) -> Any? { return "Row \(row)" } func tableViewSelectionDidChange(_ notification: Notification) { print("Selected row: \(self.selectedRow)") } } ``` I've also tried implementing `tableView(_:shouldHighlightRow:)` to return `true`, but it hasn't resolved the question. The selection highlights correctly when I use the standard `NSTableView`, so I suspect that my customizations might be interfering with the default behavior. I've checked that the row sizes are set correctly, and the view updates whenever the selection changes. Additionally, my `NSTableView` is inside a scroll view, which is configured properly to reflect changes. Is there something specific I need to ensure when subclassing or overriding these methods? Any insight into debugging this scenario would be much appreciated. This is part of a larger application I'm building. Is there a better approach? I've been using Swift for about a year now. Any ideas how to fix this? I'd really appreciate any guidance on this. I'm developing on Windows 11 with Swift. Am I missing something obvious?