您如何正确设置辅助视图以在iPhone上支持导航控制器? [英] How do you properly set up a secondary view to support a navigation Controller on the iPhone?

问题描述

我有一个iPhone应用程序，该应用程序显示带有按钮的简单视图(视图1).当用户按下此按钮时，View 2会通过调用滑入视图

I have an iPhone app that shows a simple view (View 1) that has a button. When the user presses this button, View 2 slides into view using the call

[self presentModalViewController:self.view2 animated:YES];

我希望View 2支持导航控制器.我找到的所有代码都告诉您如何设置导航控制器应用程序，但是我不知道如何使用IB进行设置.

I want View 2 to support a navigation controller. All the code I find tells you how to set up a Navigation Controller App, but I can't figure out how to set this up using IB.

我所做的是创建一个普通的view2.xib文件.我将文件的所有者类设置为view2. 我将导航控制器添加到XIB.我在UINavigationController的view2.h中创建了一个名为view2Nav的IBOutlet.我将view2Nav链接到view2.xib中的NavigationController.

What I have done is to create a plain view2.xib file. I set the file's owner class to view2. I add a navigation Controller to the XIB. I create an IBOutlet called view2Nav in view2.h for a UINavigationController. I link view2Nav to the NavigationController in view2.xib.

然后我用view3.xib创建一个view3类.我在view2.xib中将RootViewController设置为view3类，并将其NIB名称设置为view3.

I then create a view3 class with view3.xib. I set the RootViewController in view2.xib to be of class view3 and set its NIB name to view3.

然后我返回并运行该程序.当我在视图1上按我的按钮时，应用程序在尝试创建视图2时崩溃.

Then I go back and run the program. When I press my button on view 1, the app crashes as it tries to create view 2.

我知道我一定缺少设置或其他内容.

I know I must be missing a setting or something.

推荐答案

MySecondViewController *secondVC = [[MySecondViewController alloc] initWithNibName:@"MySecondViewController" bundle:nil];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:secondVC];
[self presentModalViewController:navigationController animated:YES];
[secondVC release];
[navigationController release];

忘记IB.在代码中执行任何操作:)速度更快，您将完全知道它为什么以及如何工作.

Forget about IB. Do anything in code :) It is faster and you will exactly know why and how it works.

我不确定您是否可以将self.view2传递给presentModalViewController.如果self.view2是UIViewController的子类，则可以.如果它是简单的UIView，则不应该.如果事实上你根本不能做.

I'm not sure whether you can pass a self.view2 to presentModalViewController. If self.view2 is a subclass of UIViewController, you can. If it is a simple UIView, you shouldn't. If fact you can't at all.

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