Swift presenting ViewController with NavigationViewController

最新推荐文章于 2023-10-17 22:03:31 发布

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最新推荐文章于 2023-10-17 22:03:31 发布

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原文链接：http://www.cnblogs.com/moiez/p/9590734.html

本文介绍了如何解决在iOS应用中，从NavigationViewController呈现MyViewController时导航栏缺失的问题。提供了两种解决方案：一是通过导航控制器推入新视图控制器；二是将新视图控制器嵌入新的导航控制器并模态呈现。

I have system "NavigationViewController -> MyViewController", and I programmatically want to present MyViewController inside a third view controller. The problem is that I don't have navigation bar in MyViewController after presenting it. Can you help me?

var VC1 = self.storyboard.instantiateViewControllerWithIdentifier("MyViewController") as ViewController
self.presentViewController(VC1, animated:true, completion: nil)

Calling presentViewController presents the view controller modally, outside the existing navigation stack; it is not contained by your UINavigationController or any other. If you want your new view controller to have a navigation bar, you have two main options:

Option 1. Push the new view controller onto your existing navigation stack, rather than presenting it modally:

let VC1 = self.storyboard!.instantiateViewControllerWithIdentifier("MyViewController") as! ViewController
self.navigationController!.pushViewController(VC1, animated: true)

Option 2. Embed your new view controller into a new navigation controller and present the new navigation controller modally:

let VC1 = self.storyboard!.instantiateViewControllerWithIdentifier("MyViewController") as! ViewController
// Create a navigation controller with VC1 at the root of the navigation stack.
let navController = UINavigationController(rootViewController: VC1)
self.present(navController, animated:true, completion: nil)

Bear in mind that this option won't automatically include a "back" button. You'll have to build in a close mechanism yourself.

Which one is best for you is a human interface design question, but it's normally clear what makes the most sense.

转载于:https://www.cnblogs.com/moiez/p/9590734.html