Objective c 行动单导致iPad上出现多个UIPopover

我有一个通用的应用程序，有一个带有几个按钮的行动表。当我点击add按钮（navigationItem.right）时，我希望它显示在popoever中。它正确地做到了这一点，但是，当操作表绑定到barbutton项时，它允许我不断地点击add按钮，并有更多的弹出窗口

我以为在爆米花外面敲一下会让这个

- (IBAction)ShowItemAdd:(id)sender
{
    addActionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:[dataObj.preferences objectForKey:@"appts_name"], @"Reserve", nil];
    if ([[UIDevice currentDevice] isPad]) {
        [addActionSheet showFromBarButtonItem:[[self navigationItem] rightBarButtonItem] animated:YES];
    } else {
        [addActionSheet showInView:self.view];
    }
}

如果我将它绑定到barbutton项，为什么它不会自动解除

编辑

点击顶部navigationItem栏（蓝色栏）中的任何位置都不会关闭操作表，但点击导航控制器外部将关闭操作表

- (IBAction)ShowItemAdd:(id)sender
{
    if ([addActionSheet isVisible]) {

        [addActionSheet dismissWithClickedButtonIndex:[addActionSheet cancelButtonIndex] animated:YES];

    } else {

        addActionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:[dataObj.preferences objectForKey:@"appts_name"], @"Reserve", nil];
        if ([[UIDevice currentDevice] isPad]) {
            [addActionSheet showFromBarButtonItem:[[self navigationItem] rightBarButtonItem] animated:YES];
        } else {
            [addActionSheet showInView:self.view];
        }
    }
}

---

在您的方法中，您应该首先检查您的操作表是否已可见，如果已可见，请将其取消，而不是创建新的操作表

- (IBAction)ShowItemAdd:(id)sender
{
    if ([addActionSheet isVisible]) {

        [addActionSheet dismissWithClickedButtonIndex:[addActionSheet cancelButtonIndex] animated:YES];

    } else {

        addActionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:[dataObj.preferences objectForKey:@"appts_name"], @"Reserve", nil];
        if ([[UIDevice currentDevice] isPad]) {
            [addActionSheet showFromBarButtonItem:[[self navigationItem] rightBarButtonItem] animated:YES];
        } else {
            [addActionSheet showInView:self.view];
        }
    }
}

---

isVisible总是返回false；viewController上是否有用于存储对操作表的引用的属性？尝试将

addActionSheet

更改为

self.addActionSheet

我确实有addActionSheet作为属性。我将其更改为

self.addActionSheet

，但仍然是一样的。很抱歉，我在重新启动addActionSheet后看到了。我把它移到顶部，它就工作了。谢谢