Question

我有一个带有两列的NSOutlineView（基于视图）。在第二列中，我有一个NSButton连接到一个NSPopOver。

当我点击按钮时，它会显示NSPopOver符合预期=＆gt; Popover是可见的。

问题：如果我重新加载NSOutlineView的数据，它会隐藏NSPopover！

这是正常行为吗？怎么避免这个？

换句话说，在每次reloadData

之后调用popoverWillClose委托消息

//OMN_Object.m
#pragma mark - Actions
- (IBAction)togglePopover:(id)sender
{
   ...
   Call App_delegate togglePopover:withTextLog:withTextInputFileDetails:withTextOutputFileDetails:fromObject:

//App_delegate.m
...
[self.myPopOver setDelegate:self];
...
#pragma mark Popover delegate

- (void)popoverWillClose:(NSNotification *)notification
{
    NSLog(@"%s *** popoverWillClose %@",__PRETTY_FUNCTION__, self.myPopOver);
}

-(void)togglePopover:(id)sender  withTextLog:(NSString*)textLog
withTextInputFileDetails:(NSString*) textInfoInput
withTextOutputFileDetails:(NSString*) textInfoOutput
              fromObject:(id)object
{
    id v = [[self.myPopOver contentViewController] view] ;

    NSTextView *t1 = [v textViewLog];
    [t1 setString:textLog];

    NSTextView *t2 = [v textViewInputFileDetails];
    [t2 setString:textInfoInput];

    NSTextView *t3 = [v textViewOutputFileDetailsLastPassFileOnly];
    [t3 setString:textInfoOutput];

    if (self.myPopOver.isShown == 0) {
        NSLog(@"%s Displaying popover %@", __PRETTY_FUNCTION__, self.myPopOver);
        [self.myPopOver showRelativeToRect:[sender bounds]
                                    ofView:sender
                             preferredEdge:NSMaxYEdge];
        self.objectOwnerOfPopOver = object;
    }
    else {
        NSLog(@"%s Closing popover %@", __PRETTY_FUNCTION__, self.myPopOver);
        [self.myPopOver close];
        self.objectOwnerOfPopOver = nil;
    }
}

// Outline_view_delegate.m
- (NSView *)outlineView:(NSOutlineView *)outlineView viewForTableColumn:(NSTableColumn *)tableColumn item:(id)item{
...
    else  if ([[tableColumn identifier] isEqualToString:@"Status"]){
        if ([item isKindOfClass:[OMN_Object class]])
        {
            OMN_Object *o = item;

            ObjectStatusTableCellView *v = [outlineView makeViewWithIdentifier:@"StatusCell" owner:self];
                  ....

            [v.buttonRevealInFinder setAction:@selector(buttonRevealInFinderClicked:)];
            [v.buttonRevealInFinder setTarget:o];

            [v.buttonInfo setTarget:o];
            [v.buttonInfo setAction:@selector(togglePopover:)];

            return v;
        }
...
}

Answer 1

在大纲视图上调用reloadData时，大纲视图会删除其所有子视图（包括弹出框附加到的按钮）并重新创建它们。当从超级视图中删除该按钮时，弹出窗口将被关闭。

您真的需要重新加载所有大纲视图数据吗？你可以使用-reloadDataForRowIndexes：columnIndexes：或-reloadItem重新加载特定的行：？

或者，不是将按钮（发送者）传递给-showRelativeToRect：ofView：preferredEdge：m，您可以尝试传递大纲视图本身。

Answer 2

解决。我将popover附加到NSWindow视图，并将NSMouseLocation用于popover的位置。

NSPoint mouseLoc2 = [self.window mouseLocationOutsideOfEventStream];
NSRect r4 = NSMakeRect(mouseLoc2.x -10, mouseLoc2.y -10, 16, 16);
[self.myPopOver showRelativeToRect:r4
                            ofView:self.window.contentView
                     preferredEdge:NSMaxYEdge];

NSOutlineView reloadData关闭我的NSPopOver

2 个答案: