Created by: hansonchris
This will allow child views with horizontally scrollable content to behave as expected, regardless of the state of the panel.
My specific issue is this: I have a RecyclerView which has a LinearLayoutManager with a horizontal orientation. This RecyclerView is one of many children inside a ScrollView, and of course, this ScrollView is set as the scrollable view in the SlidingUpPanelLayout.
When the panel was in the COLLAPSED or ANCHORED states, horizontal scrolls on this RecyclerView were awkward. They felt sluggish, and often weren't handled properly.
I would also expect this code change to fix the issue reported in https://github.com/umano/AndroidSlidingUpPanel/issues/679.