如何将活动的一部分放在最前面？
[英]How do I make a section of an activity always-on-top?
问题描述
Had a question about making part of a View Always-On-Top. 
有一个关于使View Always-On-Top成为一部分的问题。 Please see the Groupon picture below. 请参见下面的Groupon图片。 The black window at the bottom where it says "From $29" & "Buy!" 底部的黑色窗口显示“ 29美元起”和“购买！” is always on top of the activity page. 始终位于活动页面的顶部。 Meaning the rest of the page is scrollable above that black window at the bottom. 这意味着页面的其余部分可在底部的黑色窗口上方滚动。 Please note I only want this activity to have an Always-On-Top 请注意，我只希望此活动具有“永远在线”
How do I make a portion of the activity Always On Top? 如何使活动始终处于顶部？ And what kind of layout did you think they used for Groupon? 您认为他们用于Groupon的布局是什么？ I was just going to make a RelativeLayout and layout_alignParentBottom="true" . 我只是要制作一个RelativeLayout和layout_alignParentBottom="true" 。
2 个解决方案
解决方案1
1 已采纳 2013-11-26 01:32:32
You could probably get away with having a vertical linear layout with two children. 您可能会有两个孩子的垂直线性布局而逃脱。 The first one a scrollable area and the bottom a view with whatever it is you want to be 'on top'. 第一个是可滚动区域，而底部则是您想位于顶部的视图。 Since there's no transparency there's no visual difference between having the black view as always-on-top and having one view on top of the other (in the y-axis, not z-axis). 由于没有透明性，因此始终将黑色视图始终保持在顶部与将一个视图置于另一个视图（在y轴而不是z轴上）之间没有视觉差异。 Plus, if you do it this way you can reach and see the bottom of the scrollable view's content. 另外，如果以这种方式进行操作，则可以到达并查看可滚动视图内容的底部。
解决方案2
0 2013-11-25 23:51:40
据我所知，最好的方法是使用此View实现BaseActivity，并让您的所有活动扩展该活动，而不是标准的Activity。
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