以编程方式在UIViewController中添加UINavigationController [英] Programmatically add UINavigationController in UIViewController

问题描述

我目前有一个视图设置如下：

I currently have a view set up as the following:

@interface BlogViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> {
    UITableView *mainTableView;
}

@property (nonatomic, retain) UITableView *mainTableView;

正如您所看到的，它内部有一个UITableView，我将所有数据加载到。但是，当我调用以下函数时：

As you can see, it has a UITableView inside of it that I load all of my data to. However, when I call the following function:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    SingleBlogViewController *viewController = [[SingleBlogViewController alloc] init];
    [self.navigationController pushViewController:viewController animated:YES];
    //[self presentModalViewController:viewController animated:YES];
    [viewController release];
}

没有任何反应。出于某种原因，我的 UIViewController 内的 UITableView 并未推送视图。这是因为它不是 UITableViewController ？我尝试将其更改为，但它仍然无效。

nothing happens. For some reason my UITableView inside of my UIViewController isn't pushing the view. Is this because it isn't a UITableViewController? I tried changing it to that, and it still didn't work.

我在这里遗漏了什么吗？

Am I missing something here?

推荐答案

我找到了这篇博客文章对于展示如何在没有Interface Builder的情况下以编程方式创建和使用UINavigationController非常有用。

I found the first parts of this blog post useful for showing how to create and use a UINavigationController programmatically without Interface Builder.

我希望文档和教程给我强调的东西：

Some of the things I wish the docs and tutorials would have stressed to me:

• 当你创建 UINavigationController时你可以免费获得UIView和UINavigationBar（即你不需要单独添加它们并弄清楚如何将它们连接在一起）。

• When you create the UINavigationController you get a UIView and UINavigationBar for free (i.e. you don't need to separately add them and figure out how to hook them together).

您将 myUINavigationController.view 属性添加为主视图，然后按/ pop UIViewController s在UINavigationController上，它们将自动显示在 m中可见yUINavigationController.view UIView。

You add the myUINavigationController.view property as the "main" view and then push/pop UIViewControllers onto the UINavigationController and they will automatically show up as visible in the myUINavigationController.view UIView.

将 UIViewController 推送到a UINavigationController ， UIViewController.navigationController 已填写。如果您尚未将视图推送到导航控制器，我我猜这个属性是空的。

When you push a UIViewController onto a UINavigationController, the UIViewController.navigationController is filled in. If you haven't pushed the view onto the navigation controller, I'm guessing that property is empty.

以编程方式将按钮添加到 UINavigationBar的时间/地点不是在构建 UINavigationController 的时间和地点，而是在推送时加载它们时的个别 UIViewController 到 UINavigationController 。

The time/place to programmatically add buttons to the UINavigationBar is not when and where you construct the UINavigationController, but rather by the individual UIViewControllers when they are loaded as you push onto the UINavigationController.

我只需要在 UINavigationController 的<$ c $中添加一个完成按钮c> UINavigationBar 在第一个 UIViewController 的 viewDidLoad 方法中推送到的UINavigationController 。任何 UIViewController 我按下了第一个视图的顶部，自动在其中有一个后退按钮导航到掩盖的 UIViewController 。

I only had to add a "Done" button to the UINavigationController's UINavigationBar in the viewDidLoad method of the first UIViewController pushed onto the UINavigationController. Any UIViewController I pushed on top of that first view automatically had a "back" button in the to navigate to the covered up UIViewController.

如果设置<的标题属性code> UIViewController 然后再把它放在 UINavigationController 的堆栈上。 UINavigationBar 的标题将是您视图的标题。同样，任何后退按钮都会自动命名您要返回的视图，而不是一般地说返回。

If you set the title property of your UIViewController before you put it on the UINavigationController's stack. The UINavigationBars title will be the title of your view. As well any "back" buttons will automatically name the view you are returning to instead of generically saying "back".

这篇关于以编程方式在UIViewController中添加UINavigationController的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！