tree e97ab2e1305ec553a09eb017e4ff549eb07388ea
parent f9f7f2bd746018345a3a16c3f02b3cb19687dc98
author Doris Liu <tianliu@google.com> 1574375590 -0800
committer Doris Liu <tianliu@google.com> 1574380266 -0800

Add listener to transition composable

Also use the first state passed into transition composable as the
default state.

BUG: 144683881
BUG: 144061469

Test: included in the CL
Change-Id: I443c754e4079b0826736dae51e4337ad458051e2