xcode 在 Storyboard 中设置的 rootViewController 未在应用启动时显示
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rootViewController set in Storyboard not showing on App Launch
提问by tarheel
I started with an Empty Application and added the storyboard file myself, added a View Controller to the storyboard and then embedded it into the Navigation Controller. Now, when I launch the app in iOS Simulator - nothing shows. Screenshot of my storyboard is below.
我从一个空的应用程序开始，自己添加了故事板文件，在故事板中添加了一个视图控制器，然后将其嵌入到导航控制器中。现在，当我在 iOS 模拟器中启动应用程序时 - 没有显示。我的故事板的屏幕截图如下。
What needs to happen to get the "AddPerson" to show on launch?
需要做什么才能让“AddPerson”在发布时显示？
Update: Yes, Main Storyboard is set, but the Main Interface is blank. Should that Main Interface be set to something(the drop down is blank)?
更新：是的，主情节提要已设置，但主界面为空白。该主界面是否应该设置为某些内容（下拉列表为空）？
采纳答案by tarheel
I searched and searched, and finally found my answer(@jms - hope this answers yours as well). See here: Xcode 4.2 iOS Empty Application and storyboards.
我搜索和搜索，终于找到了我的答案（@jms - 希望这也能回答你的问题）。请参阅此处：Xcode 4.2 iOS 空应用程序和故事板。
回答by
Just comment out all your generated code in app delegate's - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptionsmethod except for return YES.
只需在应用程序委托的- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法中注释掉所有生成的代码，除了return YES.
Here's my code and it worked fine.
这是我的代码，它运行良好。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
//self.window.backgroundColor = [UIColor whiteColor];
// [self.window makeKeyAndVisible];
return YES;
}
回答by louis
I had the same problem, just select both of them CMD+X to cut, then CMD+V to paste it will set one as root view :)
我遇到了同样的问题，只需选择它们 CMD+X 进行剪切，然后 CMD+V 粘贴它就会将其设置为根视图:)
