Question

我想处理NSOutlineView中的复选框点击。复选框是NSButtonCell类型的复选框单元格。我可以在以下位置设置初始状态：

optional func outlineView(_ outlineView: NSOutlineView,
                            willDisplayCell cell: AnyObject,
                            forTableColumn tableColumn: NSTableColumn?,
                            item item: AnyObject)

现在，当复选框的状态发生变化时，如何执行函数？我搜索了互联网，但我找不到。

Answer 1

您必须重新加载与复选框单元格对应的项目。请查看此API https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSOutlineView_Class/#//apple_ref/doc/uid/20000110-SW7

Answer 2

我发现这是从表中设置值：

DragNDropOutlineView: implementing drag and drop in an NSOutlineView

// Optional method: needed to allow editing.
- (void)outlineView:(NSOutlineView *)ov setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item  {
AAPLSimpleNodeData *nodeData = [item representedObject];

// Here, we manipulate the data stored in the node.
if ([[tableColumn identifier] isEqualToString:COLUMID_IS_SELECTABLE]) {
    nodeData.selectable = [object boolValue];
}

}

另一种方法是在每个单元格中设置目标和操作：

optional func outlineView(_ outlineView: NSOutlineView,
                        willDisplayCell cell: AnyObject,
                        forTableColumn tableColumn: NSTableColumn?,
                        item item: AnyObject)

如何处理基于NSOutlineView的单元格中的复选框单击

2 个答案: