ios - UISplitViewController iOS 5.1 导致popover箭头方向错误

Question

我的应用在 iOS 5.1 之前运行良好。它是一个 UISplitviewController，在左侧 Pane 中有一个 UINavigationController，并根据在该 UINavigationController 中所做的选择更新详细信息 Pane 。

iOS 5.1 特有的弹出窗口从左侧滑入的新替换功能；它看起来不太好，但它确实有效。

似乎被破坏的是纵向栏按钮的“弹出窗口”的显示。它导致异常 - 'NSInternalInconsistencyException'，原因:'Unknown direction passed to _popoverViewSizeForContentSize:arrowDirection:'

我试图重写显示弹出框的方法，如下所示:

-(void)splitViewController:(UISplitViewController *)svc popoverController:(UIPopoverController *)pc willPresentViewController:(UIViewController *)aViewController { [self.popoverController presentPopoverFromBarButtonItem:self.masterPopoverButtonItem permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; }

但我仍然得到同样的错误。谁能帮忙？

Answer 1

使用下面的委托(delegate)从详细信息页面显示母版页

- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:

    (UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController
    {
        barButtonItem.title = NSLocalizedString(@"Master", @"Master");
        [self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];
        self.masterPopoverController = popoverController;
    }

    - (void)splitViewController:(UISplitViewController *)splitController willShowViewController:(UIViewController *)viewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
    {
        // Called when the view is shown again in the split view, invalidating the button and popover controller.
        [self.navigationItem setLeftBarButtonItem:nil animated:YES];
        self.masterPopoverController = nil;
    }