tree 22bd1f30863082f333018621c02148a9026afe55
parent b2117bbc3aa853cd7c3db3878be52e2137f7f3df
author lumark <lumark@google.com> 1541755847 +0800
committer lumark <lumark@google.com> 1541756107 +0800

Fix system crash in Atms.notifyKeyguardFlagsChanged.

The crash happened when the external display removed during relayout and post
message to notify keyguard flags changed for updating transition on
this display, and then got NULL activiy display after message received.

Add a null check in notifyKeyguardFlagsChanged to fix this crash.

Bug: 119285175

Test: All existing tests passed.
Change-Id: I1768b1485d20973049fc92f97dcaccde31510499