ios 使用 segues 在 NavigationController 中嵌入 UIViewController
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原文地址: http://stackoverflow.com/questions/16253631/
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Embed a UIViewController in a NavigationController using segues
提问by hatunike
I have a viewController that is usually(most often) accessed by using a push segue. This viewController needs to be embedded in a UINavigationController. So typically, this is no problem. The push segue manages pushing the viewController, and therefore the viewController has it's UINavigationController.
我有一个 viewController，它通常（最经常）通过使用 push segue 来访问。这个 viewController 需要嵌入到 UINavigationController 中。所以通常，这没有问题。push segue 管理推送viewController，因此viewController 有它的UINavigationController。
My issue is that in a few cases, I'd like to present this same exact viewController using a modal segue. When I do this, the viewController is not embedded in a navigationController. Is there a way to do this using segues?
我的问题是，在某些情况下，我想使用模态转场来呈现完全相同的 viewController。当我这样做时，viewController 没有嵌入到 navigationController 中。有没有办法使用 segue 做到这一点？
I know this can be done purely in code without segues by creating a UINavigationController, setting the rootView as the viewController and then presenting that modally. That can be done using code like this :
我知道这可以通过创建 UINavigationController，将 rootView 设置为 viewController，然后以模态方式呈现，而无需继续在代码中完成。这可以使用这样的代码来完成：
MyViewController *viewController = [[MyViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewController];
[self presentModalViewController:navController animated:YES];
But how do I do this same thing but using Segues?
但是我如何做同样的事情而不是使用 Segues？
Update
更新
For further clarity, here is some code to supplement how I used the accepted answer in the prepareForSegue method.
为了进一步清晰，这里有一些代码来补充我如何在 prepareForSegue 方法中使用已接受的答案。
When Using Modal Segue
使用模态转场时
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue destinationViewController] isEqualToString:@"Modal to MyVC"])
{
UINavigationController *nav = [segue destinationViewController];
MyViewController *vc = [nav topViewController];
//setup vc
}
}
When Using Push Segue
使用 Push Segue 时
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue destinationViewController] isEqualToString:@"Push to MyVC"])
{
MyViewController *vc = [segue destinationViewController];
//setup vc
}
}
回答by vacawama
In your Storyboard, you can embed a ViewController in a Navigation Controller by selecting the View Controller and then picking from the menu at the top Editor->Embed In->Navigation Controller. From another view controller, you control drag to this Navigation controller to set up the modalsegue. You can also control drag to the original View Controller to set up segues to it without the Navigation Controller.
在您的 Storyboard 中，您可以通过选择 View Controller 然后从顶部的菜单中选择，将 ViewController 嵌入到导航控制器中Editor->Embed In->Navigation Controller。从另一个视图控制器，您可以控制拖动到此导航控制器以设置转场modal。您还可以控制拖动到原始视图控制器以在没有导航控制器的情况下设置转场。
