iphone - 选择行时关闭弹出窗口？

Question

当 UISPlitViewControler 处于弹出模式时从主视图中选择一行时。不是应该自动解除吗？我该如何修复它？

通常我会这样做 [self.popoverController DismissPopoverAnimated:YES]; 但在这种情况下 popoverController 无法识别。

我认为 UISplitViewController 应该自动执行此操作？

这是我的 UISplitViewDelegate 代码，位于我的DetailViewCOntroller 中:

- (void)splitViewController:(UISplitViewController *)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController: (UIPopoverController *)pc
{
    barButtonItem.title = @"Medical Codes";
    NSMutableArray *items = [[self.toolbar items] mutableCopy];
    [items insertObject:barButtonItem atIndex:0];
    [self.toolbar setItems:items animated:YES];
    [items release];
}

// Called when the view is shown again in the split view, invalidating the button and popover controller.
- (void)splitViewController:(UISplitViewController *)svc willShowViewController:(UIViewController *)aViewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
    NSMutableArray *items = [[self.toolbar items] mutableCopy];
    [items removeObjectAtIndex:0];
    [self.toolbar setItems:items animated:YES];
    [items release];
}

在我的应用程序委托(delegate)中，我有:

@property (nonatomic, retain) IBOutlet UISplitViewController *splitViewController;
@property (nonatomic, retain) IBOutlet DetailViewControlleriPad *rightViewController;
@property (nonatomic, retain) IBOutlet RootViewController * leftViewController;

这些属性都连接在 IB 中。 RootViewController 推送到其他 TableView ，在弹出模式下选择它们时需要将其关闭。

编辑

- (void)setDetailItem:(id)newDetailItem
{
    if (detailItem != newDetailItem)
    {
        [detailItem release];
        detailItem = [newDetailItem retain];
        [self.myTableView reloadData];
    }
}

Answer 1

我总是必须手动显式关闭弹出窗口。为此，请在将弹出 View Controller 传递给我的 UISplitViewControllerDelegate 时获取对它的引用:

- (void)splitViewController:(UISplitViewController*)svc 
     willHideViewController:(UIViewController *)aViewController 
          withBarButtonItem:(UIBarButtonItem*)barButtonItem 
       forPopoverController:(UIPopoverController*)pc
{
    splitViewPopover = [pc retain];
    // Other stuff
}

因为我这样做，所以当引用不再有效时，我还必须释放该引用:

- (void)splitViewController:(UISplitViewController*)svc 
     willShowViewController:(UIViewController *)aViewController 
  invalidatingBarButtonItem:(UIBarButtonItem *)button 
{    
    [splitViewPopover release];
    splitViewPopover = nil;
    // Other stuff
}

然后，当在我的主视图 Controller 中选择一个项目时，我会更新我的详细信息 Controller 并关闭弹出窗口:

[splitViewPopover dismissPopoverAnimated:NO];