从iphone上的tabbarview控制器加载导航控制器

my app is based on tabbar controller now in my default view i am showing a viewController and lets say it has Button A, when user press A it should load a my tableviewController but nothing is happening??

我的应用程序基于tabbar控制器现在在我的默认视图中我显示一个viewController并让我们说它有按钮A，当用户按A它应该加载我的tableviewController但没有发生什么？

-(IBAction)promo:(id)sender
{
  aRoot= [[tableViewController alloc] initWithNibName:@"tableViewController" bundle:[NSBundle mainBundle]];
  [self.navigationController pushViewController:aRoot animated:YES];

}

but its not loading anything no error even???

但它没有加载任何没有错误甚至???

/////////// UPDATE

///////////更新

i did this

我这样做了

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    





 Promo *aPromo = [[Promo alloc] initWithNibName:nil bundle:nil];//button A is deifned on this VC
 // then...
 aNav = [[UINavigationController alloc] initWithRootViewController:aPromo];
// [pageOne release];

and in promoviewController

并在promoviewController中

-(IBAction)promo:(id)sender
{atab= [[TableViewController alloc] initWithNibName:@"TableViewController" bundle:nil];

 //TableViewController *atab1 = [[TableViewController alloc]initWithNibName:@"TableViewController" bundle:[NSBundle mainBundle]];


 [self.navigationController pushViewController:atab animated:YES];



}

3 个解决方案

#1

You need a navigationController to push a viewController.

你需要一个navigationController来推送一个viewController。

#2

you can't add a viewcontroller to a uitabbar if you want to use the navigation controller.

如果要使用导航控制器，则无法将视图控制器添加到uitabbar。

Where you make your tab bar controller you have to do this:

在制作标签栏控制器的地方，你必须这样做：

MyFirstTabViewController *pageOne = [[MyFirstTabeViewController alloc] initWithNibName:nil bundle:nil];
// then...
UINavigationController *ncOne = [[UINavigationController alloc] initWithRootViewController:pageOne];
[pageOne release];

then add ncOne to the tab bar instead of the view controller. :) Then your code in the question should work (given that you're properly declaring aRoot in the header).

然后将ncOne添加到选项卡栏而不是视图控制器。 :)然后你的问题中的代码应该工作（假设你正确地在标题中声明了一个Root）。

EDIT Start again... choose a view based application call it TabBarTest.

编辑再次开始...选择一个基于视图的应用程序调用它TabBarTest。

Right click on classes and add three new classes. They need to be subclasses of UIViewController or UITableViewController. Lets say they're called RootViewOne RootViewTwo and SecondaryViewController.

右键单击类并添加三个新类。它们需要是UIViewController或UITableViewController的子类。让我们说它们被称为RootViewOne RootViewTwo和SecondaryViewController。

Then open TabBarTestViewController.m

然后打开TabBarTestViewController.m

Uncomment the viewDidLoad method.

取消注释viewDidLoad方法。

You need to now put this code in that method:

您现在需要将此代码放在该方法中：

UITabBarController *tbc = [[UITabBarController alloc] init];

NSMutableArray *viewControllers = [NSMutableArray array];

RootViewOne *vc1 = [[RootViewOne alloc] initWithNibName:nil bundle:nil];
UINavigationController *nc1 = [[UINavigationController alloc] initWithRootViewController:vc1];
nc1.view.backgroundColor = [UIColor redColor];
[viewControllers addObject:nc1];
[vc1 release];

RootViewTwo *vc2 = [[RootViewTwo alloc] initWithNibName:nil bundle:nil];
UINavigationController *nc2 = [[UINavigationController alloc] initWithRootViewController:vc2];
nc2.view.backgroundColor = [UIColor blueColor];
[viewControllers addObject:nc2];
[vc2 release];

[tbc setViewControllers:viewControllers animated:YES];

[self presentModalViewController:tbc animated:YES];

Now open RootViewOne.m and in viewDidLoad put this:

现在打开RootViewOne.m并在viewDidLoad中输入：

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button setTitle:@"Click to move through stack" forState:UIControlStateNormal];
[button addTarget:self action:@selector(moveToNextView:) forEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];

Now you're going to need a custom method:

现在你需要一个自定义方法：

-(void)moveToNextView:(id)selector {
  SecondaryViewController *page = [[SecondaryViewController alloc] initWithNibName:nil bundle:nil];
  page.title = @"Next Page";
  page.view.backgroundColor = [UIColor greenColor];
  [self.navigationController pushViewController:page animated:YES];
  [page release];
}

This is only basic, but you should get an understanding of the kinad process you need to go through. I typed this straight into the browser so there may be spelling mistakes... watch out if you get any errors or warnings. Hopefully this can help you with your project.

这只是基本的，但您应该了解您需要经历的kinad过程。我直接在浏览器中键入了这个，因此可能会出现拼写错误...请注意是否有任何错误或警告。希望这可以帮助您完成项目。

#3

Finally i solved this , i changed that VC to Navigation view Controller and then i can push the new view based on button tap,, thanks to thomas also who helped me a lot but i couldn't figure it out.

最后我解决了这个问题，我将VC更改为导航视图控制器，然后我可以根据按钮点击推送新视图，感谢托马斯也帮助了我很多，但我无法弄明白。

#1