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I have a RecyclerView wrapped in a LinearLayout and it works perfectly as expected. I can see all the data in the RecyclerView as populated. So far so good.
When I wrap the LinearLayout in a ScrollView, the RecyclerView goes blank. I do not see anything inside RecyclerView. Why? How to make this work.
The page is one of the tabs in a ViewPagerIndicator, so everything in that tab needs to be in a ScrollView.
Thanks for all the help.
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NestedScrollView is just like ScrollView , but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default.
It's pretty simple, simply set the RecyclerView 's height to wrap_content . That's right.
setnestedscrollingenabled set it to false.
To be able to scroll through a vertical list of items that is longer than the screen, you need to add a vertical scrollbar. Inside RecyclerView , add an android:scrollbars attribute set to vertical .
Set this property for the ScrollView,
android:fillViewport="true"
ScrollView will extend itself to fill the contents
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After checking implementation, the reason appears to be the following. If RecyclerView gets put into a ScrollView, then during measure step its height is unspecified (because ScrollView allows any height) and, as a result, gets equal to minimum height (as per implementation) which is apparently zero.
You have couple of options for fixing this:
RecyclerView
ScrollView.fillViewport to true
RecyclerView outside of ScrollView. I my opinion, this is the best option by far. If RecyclerView height is not limited - which is the case when it's put into ScrollView - then all Adapter's views have enough place vertically and get created all at once. There is no view recycling anymore which kinda breaks the purpose of RecyclerView.
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