弹出旋转

Question

我有popover的问题。我做的是：

1. 将我的应用程序从横向旋转为纵向
2. 在Popup中显示MasterViewController
3. 旋转回风景

注意： masterViewController =在splitViewController左侧查看 detailViewController =在splitViewController右侧的视图

在旋转结束时，masterViewController向下移动，现在导航和放大之间有空白。的viewController。 （对于图片：http://www.flickr.com/photos/vriel/5470798582/）。当我在旋转之前销毁弹出窗口时（通过点击外部弹出窗口），这个问题不存在。

在我的detailViewController中，我有以下代码：

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {  
    if (popover && popover.popoverVisible) [popover dismissPopoverAnimated:YES];}

-(void)splitViewController: (UISplitViewController*)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem*)barButtonItem forPopoverController: (UIPopoverController*)pc {
    UIBarButtonItem* button = [UIBarButtonItem allocinitWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(showPopover:)];
}

-(void)splitViewController: (UISplitViewController*)svc willShowViewController:  (UIViewController *)aViewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem {
    if (self.navigationItem) [self.navigationItem setLeftBarButtonItem:nil animated:NO];
}


-(void)showPopover:(id)sender {
    UINavigationController* c = (UINavigationController*)[self getApplicationDelegateObject:@selector(masterViewController)];
    if (c) {  
        if (!popover) {
            popover = [UIPopoverController allocinitWithContentViewController:c];
        } else {
            popover.contentViewController = c;
        }
        if (popover) {
            [popover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
        }
    }  
}

Answer 1

终于找到了问题所在

<强>先前： 在我创建自己的条形按钮项目以处理旋转之前。事实上，我不应该担心弹出因为苹果已经照顾它了

-(void)splitViewController: (UISplitViewController*)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem*)barButtonItem forPopoverController: (UIPopoverController*)pc {

UIBarButtonItem* button = [UIBarButtonItem allocinitWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(showPopover:)];
}

更正：

-(void)splitViewController: (UISplitViewController*)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem*)barButtonItem forPopoverController: (UIPopoverController*)pc {
if (self.navigationItem) [self.navigationItem setLeftBarButtonItem:barButtonItem animated:NO];
}