UINavigationController 与 presentModalViewController [英] UINavigationController with presentModalViewController

问题描述

我有一个实现 UINavigationController 的菜单屏幕，在该屏幕顶部，使用 presentModalViewController，我放置了另一个屏幕，我希望在该屏幕上拥有另一个 UINavigationController.我试图实现另一个导航控制器来处理新屏幕，但我要么在屏幕下方的 1/8 处得到一个导航栏，要么崩溃，要么什么也没有.我试过 [[UINavigationController alloc] initWithRootViewController:navigationConroller] 也没有成功.我只是在使用 pushViewController 来尝试将下一个 nib 放在不起作用的堆栈上.我做错了什么?

I have a menu screen that implements UINavigationController and on top of that screen, using presentModalViewController, I place another screen on which I want to have another UINavigationController. I have tried to implement another navigation controller to handle the new screen but I either get a navbar 1/8th the way down the screen and it crashes or nothing at all. I have tried [[UINavigationController alloc] initWithRootViewController:navigationConroller] with no success as well. I'm just using pushViewController to try and place the next nib on the stack which doesn't work. What am I doing wrong?

推荐答案

虽然有很多人在论坛上说苹果不允许这样做，但我已经让它工作了.你要做的是:

Although there are a lot of people saying on forums that Apple doesn't allow this I have got it to work. What you have to do is:

Map *mapScreen = [[[Map alloc] init] autorelease];
mapScreen.delegate = self;

UINavigationController *navController = [[[UINavigationController alloc] initWithRootViewController:mapScreen] autorelease];

[self presentModalViewController:navController animated:YES];

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