从 UINavigationController 切换到 UISplitviewController

Posted 2023-03-22

【中文标题】从 UINavigationController 切换到 UISplitviewController

【英文标题】：Switch from UINavigationController to UISplitviewController

【发布时间】：2011-11-16 18:20:49

【问题描述】：

我有一个UINavigationController 提供几个UIViewControllers。然后我想切换到UISplitviewController。

所以我在我的 app-Delegate 中实现了一个方法 useSplitViewController，我从上一个 UIViewController 调用它。它显示SplitView，但我无法旋转我的设备。我的SplitviewController 中的ViewControllers 没有得到旋转事件。我的错误是什么，我该如何解决？

 -(void)useSplitViewController

    [self.menuViewController.view removeFromSuperview];
    self.menuViewController = nil;
    self.navcon = nil;

    self.splitViewController =[[UISplitViewController alloc]init];
    self.rootViewController=[[RootViewController alloc]init];
    self.detailViewController=[[[FirstDetailViewController alloc]init] autorelease];

    UINavigationController *rootNav=[[UINavigationController alloc]initWithRootViewController:rootViewController];
    UINavigationController *detailNav=[[UINavigationController alloc]initWithRootViewController:detailViewController];


    self.splitViewController.viewControllers=[NSArray arrayWithObjects:rootNav,detailNav,nil];
    self.splitViewController.delegate=self.detailViewController;

    // Add the split view controller's view to the window and display.
    [window addSubview:self.splitViewController.view];
    [window makeKeyAndVisible];


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


    self.navcon = [[UINavigationController alloc] init];
    self.menuViewController = [[MenuViewController alloc] init];
    self.menuViewController.appDelegate = self;
    [self.navcon pushViewController:self.menuViewController animated:NO];


    [window addSubview:self.menuViewController.view];
    [window makeKeyAndVisible];

    //[self useSplitViewController];

    return YES;

【参考方案1】：

需要设置窗口的根视图控制器：

替换

[window addSubview:self.splitViewController.view];

与，

[window setRootViewController:self.splitViewController];

【讨论】：

非常感谢。我不得不对 UINavigationViewController 做同样的事情，然后它就起作用了！