SplitView - iPad

Question

我正在以编程方式为iPad实现一个拆分视图控制器。这是我在didFinishLaunching中使用的代码：

self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.

MasterViewController *masterViewController = [[MasterViewController alloc] init];
UINavigationController *masterNavigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];

DetailedNewsViewController *detailViewController = [[DetailedNewsViewController alloc] init];
UINavigationController *detailNavigationController = [[UINavigationController alloc] initWithRootViewController:detailViewController];

masterViewController.detailViewController = detailViewController;

self.splitViewController = [[UISplitViewController alloc] init];
self.splitViewController.delegate = detailViewController;

self.splitViewController.viewControllers = @[masterNavigationController, detailNavigationController];

self.window.rootViewController = self.splitViewController;
[self.window makeKeyAndVisible];

但当我运行这段代码时。MasterView显示正确，它是一个TableViewController。但是DetailView没有显示，它只是一个黑屏，我试着以编程方式编写DetailView中使用的变量，并将它们添加到视图中&它起作用了。

为什么对于MasterViewController，它直接从情节提要中获取代码，而对于DetailViewController，我必须手动编写代码?而且手动编写代码真的很难，我已经在情节提要中完成了所有工作

谢谢。

Answer 1

不需要masterViewController.detailViewController = detailViewController;，而是使用self.splitViewController.viewControllers = [NSArray arrayWithObjects: masterNavigationController, detailNavigationController,nil];