iphone - 如何从 View 层次结构中选择随机 View Controller

Question

我正在构建一个应用程序，我在其中执行此层次结构:

view1controller(调用presentmodalviewcontroller方法)-->view2controller(调用presentmodalviewcontroller方法)-->view3controller(调用presentmodalviewcontroller方法)--->view4controller

我知道我总是可以使用 dismissmodalviewcontroller 方法从一个 View 切换回另一个 View 的概念。就像我可以从 View 4 切换到 View 3 以及从 View 3 切换到 View 2 一样。我的问题是如何切换到随机 View Controller ？喜欢从 View 4 到 View 2 还是从 View 3 到 View 1？ ..我没有使用导航 Controller 。我知道我错过了一个概念。谁能阐明这个概念。

Answer 1

来自引用指南UIViewController

If you present several view controllers in succession, thus building a stack of presented view controllers, calling this method on a view controller lower in the stack dismisses its immediate child view controller and all view controllers above that child on the stack. When this happens, only the top-most view is dismissed in an animated fashion; any intermediate view controllers are simply removed from the stack. The top-most view is dismissed using its modal transition style, which may differ from the styles used by other view controllers lower in the stack.