tree 5dab591d7a70116a486ef8b3392c1016855c6d58
parent e2a487959b5e59da56bbf6a03948548e5b641814
author Leo Hsu <leohsu@google.com> 1563524364 +0800
committer Leo Hsu <leohsu@google.com> 1563526431 +0800

Fix a NPE when no SIM card inserted.

Fix a NPE bug caused by change "Remove carrier specific emergency
number prefixes". The Phone instance is null when there is no SIM
inserted.

Furthermore I noticed that the Phone instance is unnecessary for
the feature, so update the related code with context + subId.

Bug: 137225076
Test: Manually launch Faster Emergency Launcher in these cases:
- Without any SIM.
- With a SIM but locked.
- With a SIM and unlocked.

Change-Id: Ie3e1b352075c56c0a670e43fda163fb59f550760