我创建了一个类ListView,这是一个非常简单的Tableview.
如果我用IB实例化它看起来很好.
如果我以编程方式实例化它,也是一样的.
如果我在NSPopover中以编程方式实例化它,我的表格的每一行都会得到浅灰色背景.
这是从哪里来的?
这里的代码:
class ViewController: NSViewController {
let popover = NSPopover()
@IBOutlet weak var label: NSTextField!
@IBAction func bu1(_ sender: Any) {
popover.show(relativeTo: label.visibleRect, of: label, preferredEdge: NSRectEdge.maxY)
}
override func viewDidLoad() {
super.viewDidLoad()
let scrollListView = NSScrollView()
let listView = ListView(frame: NSRect(x:100, y: 100, width: 100, height: 100))
scrollListView.documentView = listView
let viewController = NSViewController()
viewController.view = scrollListView
popover.appearance = NSAppearance(named: NSAppearance.Name.vibrantLight)
popover.animates = false
popover.contentViewController = viewController
}
}
class ListView: NSTableView, NSTableViewDataSource, NSTableViewDelegate {
private var list = ["Tom","Jack","Susi"]
required init?(coder: NSCoder) {
super.init(coder: coder)
setup()
}
override init(frame frameRect: NSRect) {
super.init(frame: frameRect)
setup()
}
private func setup() {
selectionHighlightStyle = NSTableView.SelectionHighlightStyle.regular
rowSizeStyle = NSTableView.RowSizeStyle.small
intercellSpacing = NSMakeSize(10.0, 0.0)
headerView = nil
target = self
backgroundColor = NSColor.white
for column in tableColumns {
removeTableColumn(column)
}
let column1 = NSTableColumn(identifier: NSUserInterfaceItemIdentifier(rawValue: "text"))
column1.isEditable = false
column1.width = 200
addTableColumn(column1)
delegate = self
dataSource = self
self.reloadData()
}
func numberOfRows(in tableView: NSTableView) -> Int {
return list.count
}
func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
return NSTableRowView()
}
func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
var cellView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "MyView"), owner: self) as? NSTableCellView
if cellView == nil {
cellView = NSTableCellView(frame: NSZeroRect)
let textField = NSTextField(frame: NSZeroRect)
textField.isBezeled = false
textField.drawsBackground = false
textField.isEditable = false
textField.isSelectable = false
cellView!.addSubview(textField)
cellView!.textField = textField
cellView!.identifier = NSUserInterfaceItemIdentifier(rawValue: "MyView")
}
cellView!.textField!.stringValue = list[row]
return cellView
}
}
最佳答案 我最近遇到了这个问题,找不到令人满意的解决方案.
我现在设法做的方法是将NSTableView包装在NSEffectView中并将状态设置为非活动状态,如下所示查看:https://christiantietze.de/posts/2017/06/nssplitviewcontroller-visual-effects/(我已在IB中完成此操作)
它对正常/浅绿色外观确实有效.遗憾的是,在黑暗的外观中,TableView部分标题由于某种原因是透明的.我很想知道它在系统范围内的暗模式下会如何看待Mojave.