Fix ALT key light behavior

This change also cleanups some imports, unnecessary cast and null check.

Bug: 2977256
Change-Id: I81b9e539ff8a13ae0cc1eb5c4fb2246732cca3e9
3 files changed
tree: ebbf67ae464ba361e5a747f6f1e949c4645ee828
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. Android.mk
  6. CleanSpec.mk