从基于窗口的项目开始建立基于导航的项目

发布于 2024-12-05 07:01:32 字数 908 浏览 0 评论 0原文

只是想了解一下不同的项目类型是如何构建的，我一定错过了一些东西。

我尝试从基于窗口的应用程序开始，然后添加一个导航控制器，以便我了解不同的组件如何与窗口和应用程序委托一起工作。

这就是我所做的：

创建了一个基于 Window 的项目
在我的应用程序 delegate.h 中添加了
@property（nonatomic，retain）IBOutlet UINavigationController *navigationController;

在我的应用程序 delegate.m 中，我添加了：

@synthesize navigationController;

(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    self.window.rootViewController = self.navigationController;
    [self.window makeKeyAndVisible];
    return YES;
}

在 MainWindow.xib 文件中，我在下面添加了一个 NavigationController 窗口
创建了一个新的 UIViewController 子类 (FirstView.h/m)
将 NavigationController 的根视图控制器指向 FirstView

构建干净，当我启动时，我得到一个全白屏幕。

我缺少什么？

原文

Just trying to wrap my head around how different project types are built and I must be missing something.

I'm trying to start with a window based application and just add a Navigation Controller so I understand how the different components work with the Window and App delegate.

Here's what I did:

Created a Window based project
In my app delegate.h I added
@property (nonatomic, retain) IBOutlet UINavigationController *navigationController;

In my app delegate.m I added:

@synthesize navigationController;

(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    self.window.rootViewController = self.navigationController;
    [self.window makeKeyAndVisible];
    return YES;
}

In the MainWindow.xib file I added a NavigationController below the
Window
Created a new UIViewController subclass (FirstView.h/m)
Pointed the NavigationController's root view controller to FirstView

Builds clean, when I launch I get an all white screen.

What am I missing?

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筱果果 2024-12-12 07:01:32

添加此 [self.window addSubview:self.navigationController.view]; 您需要将导航控制器视图添加到窗口。还要确保导航控制器的插座已连接。您还需要为导航控制器添加根视图控制器

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停滞 2024-12-12 07:01:32

实际上Barfoon ..您的导航控制器不包含任何uiviewController。首先，创建新的uiviewController，而不是将其添加到uinavigationController。 uinavigationController就像堆栈一样，它处理每个添加的uiviewController，即“来回遍历”。
前任..

ToDoController *toDoObj = [[ToDoController alloc] initWithNibName:@"ToDoController" bundle:[NSBundle mainBundle]];
UINavigationController *toDoNav = [[UINavigationController alloc] initWithRootViewController:toDoObj];
[self.window addSubview:toDoNav.view];

Actually barfoon..your navigation controller does not contains any UIViewController. First of all create new UIViewController and than add it to UINavigationController. UINavigationController is just like stack ,which handle each and every added UIViewController i.e traversing like back and forth.
Ex..

ToDoController *toDoObj = [[ToDoController alloc] initWithNibName:@"ToDoController" bundle:[NSBundle mainBundle]];
UINavigationController *toDoNav = [[UINavigationController alloc] initWithRootViewController:toDoObj];
[self.window addSubview:toDoNav.view];

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