使用 [window insertSubview] 时出现问题

Question

当我使用以下代码在分割视图之上插入视图时，我遇到了方向问题。

这是我使用的代码，

[window addSubview:aSplitViewController.view];
[window insertSubview:aViewController.view aboveSubview:aSplitViewController.view];

这里发生的情况是视图控制器（包含标签和按钮）以横向模式加载，而其组件以纵向模式加载......

我觉得 window insertSubview 是创建这个问题是因为当我使用 [window addSubview:aViewController.view] 时，视图在横向模式下正确显示，其组件也在横向模式下......

这是我觉得的代码 给我带来了问题

在我的应用程序代理中

- (void) makeSplitViewController {

    NSMutableArray *controllers = [NSMutableArray arrayWithArray:tabBarController.viewControllers];

    // First tabbbar item
    // detail view
    detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailView" bundle:nil];
    UINavigationController *navDetailView = [[[UINavigationController alloc] initWithRootViewController:detailViewController] autorelease];
    navDetailView.hidesBottomBarWhenPushed = YES;


    // root view
    rootViewController = [[RootViewController alloc] initWithStyle:UITableViewStylePlain];
    rootViewController.detailViewController = detailViewController;
    rootViewController.navigationItem.title = @"List";

    UINavigationController *navRootView = [[[UINavigationController alloc] initWithRootViewController:rootViewController] autorelease];
    navRootView.hidesBottomBarWhenPushed = YES;
    navRootView.navigationBar.barStyle = UIBarStyleBlackTranslucent;

    splitViewController = [[UISplitViewController alloc] init];
    splitViewController.tabBarItem.title = @"Face Sheet";
    splitViewController.tabBarItem.image = [UIImage imageNamed:@"gear1.png"];
    splitViewController.navigationItem.title = @"Face Sheet";
    splitViewController.viewControllers = [NSArray arrayWithObjects:navRootView, navDetailView, nil];
    splitViewController.delegate = detailViewController;
    splitViewController.hidesBottomBarWhenPushed = YES;
    [controllers addObject:splitViewController];

    // Second tabbbar item
    scoreViewController = [[ScoreCardViewController alloc] initWithNibName:@"TableViewController" bundle:nil];
    scoreViewController.tabBarItem.title = @"Score Card";
    scoreViewController.tabBarItem.image = [UIImage imageNamed:@"gear1.png"];
    scoreViewController.navigationItem.title = @"Score Card";
    [controllers addObject:scoreViewController];

    tabBarController.viewControllers = controllers;
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Override point for customization after application launch.
    // Create tabbar
    tabBarController = [[UITabBarController alloc] init];
    //tabBarController.delegate = self;

    // Set window
    [window addSubview:splashController.view];
    [window insertSubview:tabBarController.view belowSubview:splashController.view];
    [self.window makeKeyAndVisible];

    application.statusBarOrientation = UIInterfaceOrientationLandscapeRight;

    return YES;
}

，这是我的 SplashScreenView 中的代码

- (IBAction) proceedButtonClick:(id)sender
{
    // Initialize loginpopview
    PhysicianLoginViewController *loginViewController = [[PhysicianLoginViewController alloc] init];

    popOverController = [[UIPopoverController alloc] initWithContentViewController:loginViewController];
    popOverController.popoverContentSize = CGSizeMake(350, 200);
    popOverController.delegate = self;

    // Set a notification to dismiss it later
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loginViewControllerDone:) name:@"loginViewControllerDone"  object:popOverController.contentViewController];

    // Present popover
    if ([popOverController isPopoverVisible])
    {
        [popOverController dismissPopoverAnimated:YES];
    }
    else 
    {

        [popOverController presentPopoverFromRect:CGRectMake(485, 600, 100, 100) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];
    }

}

// Dismiss popview controller and setup the tabbar
- (void)loginViewControllerDone:(NSNotification *)notification
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];

    // Button in content view controller was tapped, dismiss popover...
    [self.popOverController dismissPopoverAnimated:YES];

    // remove subview
    [self.view removeFromSuperview];

    // set tabbar
    i3EAppDelegate *appDelegate = (i3EAppDelegate *) [[UIApplication sharedApplication]delegate];
    [appDelegate makeSplitViewController];

}

如果有人能指出我哪里出错了，那就太好了。我已经被这个问题困扰了好几天了，我已经尝试了我想到的一切......

Answer 1

您的问题是 UIWindow 和 UIViewController 的旋转处理并非设计为以这种方式工作。引用 文档：

在 iOS 应用程序中，窗口对象执行与更改当前方向相关的大部分工作。然而，它与应用程序的视图控制器一起工作，以确定是否应该发生方向更改，如果是，应该调用哪些附加方法来响应更改。具体来说，它与最近添加到或呈现在窗口中的根视图的视图控制器一起使用。换句话说，窗口对象仅适用于最前面的视图控制器，该控制器的视图是使用“呈现视图控制器的视图”中描述的机制之一显示的。

这一段有点模糊和矛盾（它是最近添加的视图控制器，还是最顶层视图的控制器？），并且在实践中似乎不一定与观察结果相符。最重要的是，向 UIWindow 添加多个视图会搞砸自动旋转处理。

您应该更改代码以使用 presentModalViewController:animated: （可能将 modalPresentationStyle 设置为 UIModalPresentationFormSheet）或 UIPopoverController，而不是向窗户。

Answer 2

尝试：

[aViewController.view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];