Recyclerview Unexpected Scroll Behavior, Thumb invisible

[kaisarturan]

Expected Behavior

Scroll thumb should be shown.

Actual Behavior

Scroll thumb going invisible and unexpected behavior when item height is big.

Steps to Reproduce the Problem

1. Create recyclerview and itemview height must be bigger than visible area
2. build with FastScrollerBuilder(recyclerView).build();
3. Now try to scroll problem is here.

Specifications

• Version: 1.1.0
• Platform: Android 9

[zhanghai]

I couldn't reproduce this with an item height of 700dp, larger than my screen height.

Do all your items have the same height? If not, it's not supported and you need to write your own ViewHelper.

Or if you are having too many very long items, you might be hitting a integer overflow or floating point arithmetics error, but we don't usually account for that...