制作UIView及其所有子视图的深层副本 [英] Make a deep copy of a UIView and all its subviews
问题描述
我需要制作一个包含多个子视图的UIView的深层副本。请帮我弄明白怎么做？我已经在google和SO上做了一些搜索，但没有发现任何符合我想要的东西。
I need to make a deep copy of a UIView containing several subviews. Please help me figure out how to do this? I've done some searching on google and SO and not found anything that does what I want.
对于那些想知道原因的人的解释：我有一个无限滚动的UIScrollView，当然，内容重复。每个集合的内容（例如，标记为A-Z的26个UIButtons）包含在一个视图中。这是我需要制作深度副本的视图，以便我可以在scrollview中在屏幕上显示它的多个实例。
Explanation for those who would like to know why: I have an infinitely scrolling UIScrollView where, of course, the contents repeat. Each 'set' of the contents (for example, say 26 UIButtons labeled A-Z) is contained inside one view. This is the view I need to make a deep copy of, so that I can display multiple instances of it onscreen within the scrollview.
我不能简单地重新创建包含按钮的视图的结构，因为按下按钮会调用我的UIScrollView子类无法访问的类的函数。我也不希望重新创建它们，因为当我可以简单地进行深度复制时，通过逻辑重新创建并将所有子视图放在容器视图中似乎是浪费。
I cannot simply recreate the structure of the view containing the buttons, because pressing the buttons calls a function of a class that my UIScrollView subclass does not have access to. Nor would I wish to recreate them, because it seems a waste to go through the logic to recreate and place all subviews in the container view when I could simply make a deep copy instead.
任何人都可以帮助我吗？
Can anyone help me?
推荐答案
（根据我的要求发表评论）
(Posted from my comment on request)
啊哈，我现在看到了。我认为唯一的方法是在运行时创建更多副本并隐藏它们;否则你必须遍历所有子视图，重新创建所有框架，颜色等...但正如你所说，你可能会遇到复制按钮目标等问题 - 但可能有一些有用的东西来帮助实现这一点：
Aha right I see now. I think the only way would be to create more copies at runtime and hide them; else you'd have to iterate through all subviews, re-create all frames, colors etc... but as you say you'd then likely run into issues copying button targets etc - but there might be something useful to help accomplish that here:
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