解决showFromTabBar的顶部UITabBarController视图的正确方法

Question

主应用程序委托有一个名为tabBarController（NewsUKDelegate.m）的UITabBarController

第一个选项卡加载一个UIViewController，然后依次添加一个UITableView（FirstViewController.m）

选择单元格后，UITableView会加载子类UIViewController（StoryController.m）

然后，我从Sharekit加载共享操作表

NSURL *url = [NSURL URLWithString:link];
SHKItem *item = [SHKItem URL:url title:storyTitle];
SHKActionSheet *actionSheet = [SHKActionSheet actionSheetForItem:item];
[actionSheet showFromTabBar:rootView];
[actionSheet showFromTabBar:[self view]];

它可以工作，但操作表从顶部加载，这似乎是错误的，但重要的是它抱怨

incompatible Objective-C types 'struct UIView *', expected 'struct UITabBar *' 
when passing argument 1 of 'showFromTabBar:' from distinct Objective-C type

我试着与

UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow];

if (topWindow.windowLevel != UIWindowLevelNormal)
{
    NSArray *windows = [[UIApplication sharedApplication] windows];
    for(topWindow in windows)
    {
        if (topWindow.windowLevel == UIWindowLevelNormal)
            break;
    }
}

UIView *rootView = [[topWindow subviews] objectAtIndex:0];  
NSLog(@"Root view is: %@",rootView);

[actionSheet showFromTabBar:rootView];
    [actionSheet showFromTabBar:NewsUKDelegate.tabBarController];
    [actionSheet showFromTabBar:NewsUKDelegate.view];

但是我只是崩溃，解决主应用程序的委托工具栏的正确方法是什么

Answer 1

采用，

[actionSheet showFromTabBar:self.tabBarController.tabBar];

Answer 2

     ((myAppDelegate *)[UIApplication sharedApplication]).delegate.tabBar