tree a7a1c53900b0e03f60ff84da308a4aa17dc43515
parent 3b30dc16385c525f16c172abe6e65f7b8a430c9c
author Bill Lin <lbill@google.com> 1556188612 +0800
committer Bill Lin <lbill@google.com> 1556541120 +0800

Fix long press and selection(drag) then NPE crash

RecyclerView may return null view holder after calling
findViewHolderForAdapterPosition(position)

Fixes: 131079926
Test: atest FingerSelectionUiTest#testFingerSelection_outOfRange
Test: atest DocumentsUIGoogleTests
Change-Id: I5b73e8b9c399a64704c3808126bde717d1cab051