如何动态调整NSMenu的大小以适应其内容？

Question

我有这样的标准NSMenu

此菜单是使用以下代码创建的：

NSMenu *menu = [[NSMenu alloc] init];

NSMenuItem *addMenuItem = [[NSMenuItem alloc] init];
[addMenuItem setTitle:[NSString stringWithFormat:@"Upload"]];
[addMenuItem setHidden:NO];
[addMenuItem setRepresentedObject:contentType];
[addMenuItem setTarget:self];
[addMenuItem setAction:@selector(performSelectedDragOperation:)];
[addMenuItem setTag:operation];
[addMenuItem setEnabled:YES];

[menu addItem:addMenuItem];

NSMenuItem *alterMenuItem = [addMenuItem copy];
[alterMenuItem setTitle:@"Upload in Folder"];
[alterMenuItem setKeyEquivalentModifierMask:NSAlternateKeyMask];
[alterMenuItem setAlternate:YES];
[menu addItem:alterMenuItem];
[alterMenuItem release];

[addMenuItem release];

NSMenuItem *addMenuItem2 = [[NSMenuItem alloc] init];
[addMenuItem2 setTitle:[NSString stringWithFormat:@"EditNewAndUpload"]];
[addMenuItem2 setHidden:NO];
[addMenuItem2 setRepresentedObject:contentType];
[addMenuItem2 setTarget:self];
[addMenuItem2 setAction:@selector(performSelectedDragOperation:)];
[addMenuItem2 setTag:operation];
[addMenuItem2 setEnabled:YES];

[menu addItem:addMenuItem2];

NSMenuItem *alterMenuItem2 = [addMenuItem2 copy];
[alterMenuItem2 setTitle:@"EditNewAndUpload in Folder"];
[alterMenuItem2 setKeyEquivalentModifierMask:NSAlternateKeyMask];
[alterMenuItem2 setAlternate:YES];
[menu addItem:alterMenuItem2];
[alterMenuItem2 release];

[addMenuItem2 release];

如您所见，菜单中的每个选项都有一个“重复的”项目。当您按下option（alt）键（菜单可见）时，将显示该项目的副本。

问题在于，菜单大小在显示替代菜单项时会发生变化，因为此菜单的标题大于原始菜单的标题，并且从不还原为原始大小，因此会产生以下问题：

关于如何解决它的任何想法？谢谢

Answer 1

这是正常行为，您不必为此担心。如果要更改它，请file a bug。

Answer 2

您只需要更改NSMenuItem标题

[[appmenu itemAtIndex:0]setTitle:[NSString stringWithFormat:@"EditNewAndUpload \t \t \t \t \t"]];