调查“叠加”活动功能
我正在寻找从屏幕顶部向下的覆盖层，让人们要么参与调查，要么选择“不，谢谢”。这个功能有什么样的灵活性？我们可以在该空间中放置我们喜欢的任何内容（即文本和图像）吗？
I am looking for the overlay that comes down from the top of the screen and lets people either go to the survey or select “no thanks.” What kind of flexibility do we have with this functionality? Can we put any content we like in that space (i.e., text and images)?
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从技术上讲，你可以把任何东西放在那里。
从概念上讲，它对我来说有点不同：
您会看到这主要用于轻轻地将用户指向某物，尽可能减少干扰。因此，很明显，您放入的内容越多，您就越违背其目的。
简而言之：
如果您想向用户展示他可能喜欢的东西，或者您希望他做但实际上并不需要的东西，而又不打扰用户的正常流程，请使用这样的覆盖层。
如果用户确实必须了解/必须执行某些操作，那么您应该考虑其他选项（例如模式对话框）。
在每种情况下，您都应该考虑消息的重要性与对可用性的影响。
Technically you can put anything in there.
Conceptually it is a bit different for me:
You see this mostly used to softly point a user to something, with as less disturbance as possible. As such it is clear that the more content you put in it, the more you defy it's purpose.
So in short:
if you want to show the user something that he might like or that you want him to do but that is not really needed, without disturbing the normal flow of the user, use such an overlay.
If there is something that the user really has to know about / has to do, then you should consider other options (for example a modal dialog).
In every case you should consider the importance of the message versus the impact on usability.