如何从NSOutlineView获取所选单元格？

Question

如何从NSOutlineView获取所选单元格？ 不是项目，而是细胞。 不是datacell而是当前的单元本身。

它是基于细胞的NSOutlineView。

Answer 1

func getSelectedCell() -> NSTableCellView? {
    if let view = outlineView.rowView(atRow: outlineView.selectedRow, makeIfNecessary: false) {
        return view.view(atColumn: outlineView.selectedColumn) as? NSTableCellView
    }
    return nil
}

另见NSOutlineView, how to get the selected cell

Answer 2

使用委托。当单元格更改其选择状态时，将调用willDisplayCell:。

- (void)outlineView:(NSOutlineView *)outlineView willDisplayCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn item:(id)item {
    id selectedItem = [outlineView itemAtRow:outlineView.selectedRow];
    if (item == selectedItem) {
        // 'cell' is selected cell for 'tableColumn'
    }
}