NSCollectionView中的NSPopover(或不) [英] NSPopover in NSCollectionView (or not)

问题描述

我有一个NSView的自定义子类，该类在NSCollectionView中使用. 使用以下代码双击该视图会显示NSPopover:

I have a custom subclass of NSView that is used in an NSCollectionView. The view shows a NSPopover when it is double clicked using the code below:

- (void)mouseDown:(NSEvent *)theEvent {
    [super mouseDown:theEvent];
    if ([theEvent clickCount] == 2) {
        [popover showRelativeToRect:[self bounds] ofView:self preferredEdge:NSMaxYEdge];
    }
}

popover是IBOutlet(是已连接).

当视图正常放置在窗口中时，此方法工作正常，但是在集合视图中时，该视图不显示.

This works fine when the view is placed in a window normally, but when the view is in the collection view, it doesn't show.

[popover showRelativeToRect:[self bounds] ofView:self preferredEdge:NSMaxYEdge]确实被称为(我设置了一个断点)，并且未记录任何错误.

[popover showRelativeToRect:[self bounds] ofView:self preferredEdge:NSMaxYEdge] is indeed called (I set a breakpoint) and no errors are logged.

任何想法都值得赞赏.

推荐答案

集合视图是否接受输入?如果它不接受第一响应者，则您的子视图将看不到该点击.

Does the collection view accept input? If it does not accept first responder, then your subview won't see the click.

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