实施帮助系统
问题：Android 中是否有任何默认方式来呈现帮助功能？据我所知，不。那么，接下来的问题是：是否有这样的库或组件来帮助（或尝试）标准化这一点？首次打开设备时还有绿色教程。这是怎么做到的？它可以重复使用吗？
如果您关心，请询问上下文：我开发了自己的帮助系统以在 Android 应用程序中使用：通常的首页 ->主题，使用可重用的 Fragment 和布局。它的性能“足够好”满足我的需求，但它是从临时需求发展而来的，并且开始成为一种负担（需要返工，我已经看到这次需要从头开始进行适当的抽象）。我发现移动应用程序几乎总是足够简单，根本不需要帮助，或者几乎不需要帮助。据我所知，最近在这些情况下，上下文帮助也得到了很好的实施。然而，由于主题的自然复杂性，有些应用程序需要传统的帮助系统（我的例子）。这就是我的问题的来源。
请花点时间看看这不是一个争论性问题，尽管它确实有进行这样的讨论的空间（如果两者的答案都是“否”）。
感谢您抽出时间。
PS：当然，谷歌是没有用的，因为“帮助平台”中的“帮助”与“我需要帮助（无论什么）”中的“帮助”是不明确的。我尝试过然后放弃了。
Questions: is there any default way of presenting a help feature in Android? AFAIK, no. So, it follows: is there such a library or component to help (or trying to) standardize this? There is also that green tutorial when you first turn on the device. How's that done? Is it reusable?
Question context if you care: I developed my own help system to use in Android apps: the usual frontpage -> topics, using reusable Fragments and layouts. It performs "well enough" for my needs, but it grew from ad hoc needs, and it's starting to become a burden (requiring rework, and I already see a need to start from scratch with proper abstraction this time). I see mobile apps are almost always simple enough to not require help at all, or almost no help. Contextual help is also being implemented very well in those cases lately, for what I can see. However, there are apps that, for the natural complexity of the subject, requires a traditional help system (my case). And that's where my question comes from.
Please take a moment to see that this is not an argumentative question, although it certainly has room for such a discussion (in case answer is "no" to both).
Thank you for your time.
ps.: Google is of no use, of course, since "help" as in "help platform" is ambiguous with "help" as in "I need help for (whatever)". I tried and gave up.
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目前还不行。
据我所知，除了简单地链接到网页、YouTube 视频等之外，我一直在争取有人写一些东西，可能是基于
WebView。而且，如果没有人打败我，我可能会在接下来的 6 到 12 个月内做到这一点。大概是使用小部件。
Button、TextView等我不认为设置向导是 Android 开源项目的一部分。
Not at this time.
Not that I am aware of, beyond simply linking to a Web page, YouTube video, etc. I've long campaigned for somebody to write something, probably based on
WebView. And, if nobody beats me to it, I might do it in the next 6-12 months.Using widgets, presumably.
Button,TextView, etc.I don't think the setup wizard is part of the Android open source project.