Top gravity issue with viewPager inside the Panel

Created by: jakicho

With gravity set as top, if I have a viewpager inside my Panel, the main content behind the panel will disappear while the panel is collapsing (sliding up) and then reappearing when the panelstate is collapsed.

This happens after the user swipes left/right between the pages of the panel.

If the gravity is set as bottom, everything works smoothly.

This look a bit similar with issue #450 (closed)