NSInteger selectedRow = [dataTableView clickedRow];
NSInteger selectedColumn = [dataTableView clickedColumn];


// If something was not selected,then we cannot display anything.
if(selectedRow < 0 || selectedColumn < 0)
{
    NSLog(@"Invalid selected (%ld,%ld)",selectedRow,selectedColumn);
    return;
} // End of something was not selected

// Setup our view controller,make sure if there was already a popover displayed,that we kill that one off first. Finally create and display our new popover.
DataInspectorViewController * controller =
[[DataInspectorViewController alloc] initWithNibName: @"DataInspectorViewController"
                                              bundle: nil];

if(nil != dataPreviewPopover)
{
    [dataPreviewPopover close];
} // End of popover was already visible

dataPreviewPopover = [[NSPopover alloc] init];
[dataPreviewPopover setContentSize:NSMakeSize(400.0f,400.0f)];
[dataPreviewPopover setContentViewController:controller];
[dataPreviewPopover setAnimates:YES];
[dataPreviewPopover showRelativeToRect: [dataTableView frameOfCellAtColumn: selectedColumn row: selectedRow]
                     ofView: dataTableView
              preferredEdge: NSMinYEdge];

哪个工作很好.我的popovers被创建并删除在我双击的单元格.问题是,如果我点击它之外的任何地方(如单击另一个单元格),我想让popover离开.我一直在环顾四周,但是对于我来说,我的生活无法弄清楚如何做到这一点.

这是我会认为是建立在一个popover,(我相当确定它是在iOS UIPopoverController类),所以我只是想知道如果我缺少一些简单的东西.