代码中的 UITabBar 和 UINavigationController

发布于 2024-09-01 11:16:31 字数 766 浏览 1 评论 0原文

我目前有一个 UITabBar，有 5 个屏幕调用 UIViews。该部分工作正常，但我想在其中几个中放入 UINavigationController 。我发现一些教程工作得很好，但它们都在 IB 中实现了它，我想如果可能的话避免这种情况。

我不知道在哪里实现 UINavigationController，我应该在带有 UITabBar 的 App Delegate 中执行它并从 UIView 调用导航控制器，还是应该在 UIView 类中创建它？

我尝试了大约 8 种不同的方法，但总是以导航栏不起作用、根本没有导航栏或应用程序崩溃而告终。

目前，我创建的选项卡栏如下所示：

tabBarController = [[UITabBarController alloc] init];
ScreenA *screenA = [[ScreenA alloc] initWithNibName:@"ScreenA" bundle:nil];
//more here
tabBarController.viewControllers = [NSArray arrayWithObjects:screenA, ...., nil];
[window addSubview:tabBarController.view];

在 initWithNibName 中，我有以下内容：

self.title = @"Screen A";
self.tabBarItem.image = [UIImage imageNamed:@"someImage.png"];

原文

I've currently got a UITabBar with 5 screens calling UIViews. That part works fine but I want to put in a UINavigationController in a couple of them. I have found a few tutorials that work fine but all of them implement it in IB and I want to avoid that if possible.

I'm lost as to where to implement the UINavigationController, should I do it in the App Delegate with the UITabBar and call the navigation controller from the UIView or should I create it in the UIView class?

I've tried about 8 different ways and always ends up with either the Navbar not working, no nav bar at all or the app crashing.

Currently I create the tab bar like this:

tabBarController = [[UITabBarController alloc] init];
ScreenA *screenA = [[ScreenA alloc] initWithNibName:@"ScreenA" bundle:nil];
//more here
tabBarController.viewControllers = [NSArray arrayWithObjects:screenA, ...., nil];
[window addSubview:tabBarController.view];

And in the initWithNibName I have this:

self.title = @"Screen A";
self.tabBarItem.image = [UIImage imageNamed:@"someImage.png"];

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﹂绝世的画 2024-09-08 11:16:31

好吧，像这样做...
<代码>

    tabBarController = [[UITabBarController alloc] init];    

searchTableViewController = [[SearchTableViewController alloc] init];
    UINavigationController *searchTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchTableViewController] autorelease];
[searchTableViewController release];                                                              

searchMapViewController = [[SearchMapViewController alloc] init];   
UINavigationController *mapTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchMapViewController] autorelease];
[searchMapViewController release];                                                    


tabBarController.viewControllers = [NSArray arrayWithObjects:searchTableNavController, mapTableNavController, nil];

Ok, do it like this...

    tabBarController = [[UITabBarController alloc] init];    

searchTableViewController = [[SearchTableViewController alloc] init];
    UINavigationController *searchTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchTableViewController] autorelease];
[searchTableViewController release];                                                              

searchMapViewController = [[SearchMapViewController alloc] init];   
UINavigationController *mapTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchMapViewController] autorelease];
[searchMapViewController release];                                                    


tabBarController.viewControllers = [NSArray arrayWithObjects:searchTableNavController, mapTableNavController, nil];

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