NSTableView from AppKit works just as expected, while List from SwiftUI does this weird "cropping".
Here is the code for the NSTableView:
import SwiftUI
struct NSTableViewWrapper: NSViewRepresentable {
class Coordinator: NSObject, NSTableViewDataSource, NSTableViewDelegate {
var parent: NSTableViewWrapper
init(parent: NSTableViewWrapper) {
self.parent = parent
}
func numberOfRows(in tableView: NSTableView) -> Int {
return parent.data.count
}
func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
let cell = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier("Cell"), owner: nil) as? NSTextField
?? NSTextField(labelWithString: "")
cell.identifier = NSUserInterfaceItemIdentifier("Cell")
cell.stringValue = parent.data[row]
return cell
}
}
var data: [String]
func makeCoordinator() -> Coordinator {
return Coordinator(parent: self)
}
func makeNSView(context: Context) -> NSScrollView {
let scrollView = NSScrollView()
let tableView = NSTableView()
let column = NSTableColumn(identifier: NSUserInterfaceItemIdentifier("Column"))
column.title = "Items"
column.width = 200
tableView.addTableColumn(column)
tableView.delegate = context.coordinator
tableView.dataSource = context.coordinator
tableView.headerView = nil
tableView.rowHeight = 50
tableView.style = .plain
scrollView.documentView = tableView
scrollView.hasVerticalScroller = true
return scrollView
}
func updateNSView(_ nsView: NSScrollView, context: Context) {
(nsView.documentView as? NSTableView)?.reloadData()
}
}
struct ContentView: View {
let items = 0..<40
let itemsSteing = Array(0..<40).map(\.description)
var body: some View {
NSTableViewWrapper(data: itemsSteing)
}
}
func createAppWindow() {
let window = NSWindow(
contentRect: .zero,
styleMask: [.titled],
backing: .buffered,
defer: false
)
window.title = "NSTableView from AppKit"
window.contentViewController = NSHostingController(rootView: ContentView())
window.setContentSize(NSSize(width: 759, height: 300))
window.center()
window.makeKeyAndOrderFront(nil)
}
class AppDelegate: NSObject, NSApplicationDelegate {
func applicationDidFinishLaunching(_ notification: Notification) {
createAppWindow()
}
}
let delegate = AppDelegate()
NSApplication.shared.delegate = delegate
NSApplication.shared.run()
Topic:
UI Frameworks
SubTopic:
SwiftUI
Tags: