我有一个带有基于视图的单元格、TaskCell 和 NonTaskCell 的 NSTableView,我像这样创建它们:
func tableView (tableView: NSTableView,
viewForTableColumn tableColumn: NSTableColumn?, row: Int) -> NSView? {
let cellRow = row
var theData = data[row]
var cell: TaskCellProtocol? = nil
switch Int(theData.taskType!.intValue) {
case TaskType.Issue.rawValue:
cell = self.tableView?.makeViewWithIdentifier(kTaskCellIdentifier, owner: self) as? TaskCell
default:
cell = self.tableView?.makeViewWithIdentifier(kNonTaskCellIdentifier, owner: self) as? NonTaskCell
}
assert(cell != nil, "Cell can't be nil, check the identifier")
// Add data to the cell
TaskCellPresenter(cell: cell!).presentData(theData, andPreviousData: row < data.count-1 ? data[row+1] : nil)
cell?.didAddCell = { (cell: NSTableRowView) in
RCLog(cell)
let row = tableView.rowForView(cell as! NSTableRowView)
tableView.enumerateAvailableRowViewsUsingBlock({ (rowView, rowIndex) -> Void in
RCLog(rowView)
if rowView == cell as! NSTableRowView {
RCLog("found it")
self.didAddRow?(row: cellRow)
}
})
}
RCLog(cell)
return cell as? NSView
}
当我创建单元格时,它们的行为-1,因为此日志显示:
TasksScrollView.swift:114: Optional(<Jirassic.TaskCell: 0x100e1eb60> - row: -1)
TasksScrollView.swift:114: Optional(<Jirassic.TaskCell: 0x100e269f0> - row: -1)
TasksScrollView.swift:114: Optional(<Jirassic.TaskCell: 0x100b120e0> - row: -1)
TasksScrollView.swift:114: Optional(<Jirassic.NonTaskCell: 0x100b181d0> - row: -1)
当我单击单元格内的按钮时,我将单元格本身作为参数调用 didAddCell。RCLogCell(cell) 是
TasksScrollView.swift:101: <Jirassic.TaskCell: 0x100e269f0> - row: -1
枚举器中的日志是:
TasksScrollView.swift:107: <NSTableRowView: 0x6000001a24c0> - row: 0
TasksScrollView.swift:107: <NSTableRowView: 0x6000001a1b20> - row: 1
TasksScrollView.swift:107: <NSTableRowView: 0x6180001a0540> - row: 2
TasksScrollView.swift:107: <NSTableRowView: 0x6180001a07e0> - row: 3
从苹果文档中我读到如果单元格不是 NSTableRowView 或子类,rowForView 将报告-1。但是我的 TaskCell 它是一个 NSTableRowView ,我不明白发生了什么。似乎在内部创建了另一行。有任何想法吗?您也可以按照 git https://github.com/ralcr/Jirassic/blob/master/Jirassic/TasksScrollView.swift上的代码