如何在没有 xib 的情况下使用 UINavigationController？

发布于 2024-11-06 08:32:31 字数 621 浏览 0 评论 0原文

我对 Interface Builder 有一种非理性的厌恶。

到目前为止，我得到的只是黑屏。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    // Add the navigation controller's view to the window and display.
    PrayViewController* prayViewController = [[PrayViewController alloc] initWithTabBar];
    [_window addSubview: [[UINavigationController alloc] initWithRootViewController:prayViewController]];
    [prayViewController release];
    [self.window makeKeyAndVisible];
    return YES;
}

原文

I have an irrational aversion to the Interface Builder.

Here's what I have so far, all I get is the black screen.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    // Add the navigation controller's view to the window and display.
    PrayViewController* prayViewController = [[PrayViewController alloc] initWithTabBar];
    [_window addSubview: [[UINavigationController alloc] initWithRootViewController:prayViewController]];
    [prayViewController release];
    [self.window makeKeyAndVisible];
    return YES;
}

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叹倦 2024-11-13 08:32:31

您应该向窗口添加一个视图，如下所示：

UIViewController *rootController = [[MyRootViewController alloc] init];
navigationController = [[UINavigationController alloc]
                            initWithRootViewController:rootController];
[rootController release];

window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// *** IMPORTANT DIFFERENCE:
[window addSubview:navigationController.view];

[window makeKeyAndVisible];

您将导航视图控制器的整个实例添加到窗口。

UIWindow 是 UIView 的后代，因此它只是继承 addSubview 方法。它需要另一个 UIView 作为参数。

You should add a view to the window, like this:

UIViewController *rootController = [[MyRootViewController alloc] init];
navigationController = [[UINavigationController alloc]
                            initWithRootViewController:rootController];
[rootController release];

window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// *** IMPORTANT DIFFERENCE:
[window addSubview:navigationController.view];

[window makeKeyAndVisible];

You are adding the whole instance of the navigation view controller to the window.

UIWindow is a descendant of UIView so it just inherits the addSubview method. It expects another UIView as parameter.

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