使用Swift在UIPageViewController子视图之间传递数据 [英] Passing data between UIPageViewController Child views with Swift

问题描述

我似乎无法找到解决我直接困境的具体答案。

I cant seem to find a specific answer to my direct dilemma.

我有一个 UIPageViewController ，该程序通过6个子 UIView 场景。它们包含添加元素功能的各个阶段。当前， PageViewController 类将每个子视图添加到数组中，并在需要时使用以下方法实例化它们：

I have a UIPageViewController that programmatically loads through 6 child UIView scenes. They host various stages of an 'add' element functionality. Currently the PageViewController Class adds each child view into an array and instantiates them when required with:

storyboard?.instantiateViewControllerWithIdentifier("editViewController")

已建立自然委托人可以在每个子场景之间滑动，因此没有运行 prepareForSegue 函数。

The natural delegate is set-up to swipe between each child scene and therefore no "prepareForSegue" function is run.

在滑动页面时，

根据我的阅读，我现在试图建立一个接受Dictionary实例的委托，该委托读取/存储输入。从该过程的每个阶段（不同子项 UIPageView 场景）开始，并更新字典。

From my reading, I am now attempting to set-up a delegate that takes an instance of a Dictionary, that reads/stores input from each stage (different child UIPageView scenes) of the process and updates the Dictionary.

我正在使用 viewWillDissapear 和 viewWillAppear 方法可帮助设置将数据传递到委托中。

I am using the "viewWillDissapear" and "viewWillAppear" methods to help set-up the passing data into the delegate.

不幸的是，我遇到了问题，由于缺乏经验，在这个特定问题上的知识还不够多，我需要帮助！

Unfortunately I am running into problems, and due to my lack of experience, and not much on this specific problem, I'm needing help!

主要问题：

我可以在 UIPageViewController 类，该对话或子元素 UIViews ？

Can I set-up a data delegate in the UIPageViewController class, that 'talks' or can be accessed by the child UIViews?

OR

有人知道将我的词典从一个孩子传到另一个孩子的好方法吗？？

Does anyone know of a good solution to pass my Dictionary from child to child to child????

推荐答案

您可以从child-> parent-> child传递数据，而不是从child-> child传递数据。

Instead of passing data from child->child, you could pass it from child->parent->child.

首先，在实例化每个对象时带有 storyboard？.instantiateViewControllerWithIdentifier（ editViewController）的PageViewController中的子项，保存对其的引用。

First, when you instantiate each child in the PageViewController with storyboard?.instantiateViewControllerWithIdentifier("editViewController"), save a reference to it.

所以类似

var firstViewController: EditViewController?
...
firstViewController = storyboard?.instantiateViewControllerWithIdentifier("editViewController") as EditViewController

接下来，使用 self.parentViewController 在每个子ViewController中获得对PageViewController的引用。

Next, get a reference in each child ViewController to the PageViewController using self.parentViewController.

var myPageViewController: PageViewContrller (or whatever yours is called) 
....
myPageViewController = self.parentViewController() as PageViewController (or whatever yours is called)

现在，使用这两个引用，您可以调用PageViewController和子级中的函数来回传递数据。

Now, using those two references, you can call functions in the PageViewController and in the children to pass data back and forth.

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