tree a1924c06b97394e7e778bfb85c8bdb9c58406750
parent 445cc2421e47d31be375d02cc2f4e01745189ce7
author Tracy Zhou <tracyzhou@google.com> 1573683270 -0800
committer Tracy Zhou <tracyzhou@google.com> 1573851996 -0800

Check if returned surface params are null before adding them for surface transform

We call finish recents animation before app switch animation finishes. When we finish, the live tile params are not cleared up.

This change takes care of
- clean up recents animation targets when it's finished
- do a sanity check on live tile surface params before adding them to the surface transform array

Fixes: 143889142
Test: Swipe up to Overview in live tile mode, switch to a different task, and make sure it doesn't crash anymore
Change-Id: I089cf0a97744461d1fec4d0c97e0c3c6c1049ae3