There were several errors in indexing mobile related sliceable
controllers, which led them not able to display on Panel and as inline
controls in search result.
It's because indexing mechanism is running in a worker thread and trying
to construct each controller instance, but the failed controllers'
constructors need to initilize something in the main thread.
- Give the main looper to the classes which only can be initialized in
the main thread to fix the indexing.
- Guard null pointer exception in SlicesIndexer after fixing the
indexing.
- Use onStart/onStop in AirplaneModePreferenceController to start/stop
listener.
Fixes: 149720345
Test: robotest
Change-Id: Ibe5a8d6cc713eeddf26eceaabc05e6d1faa45507
Support auto testing
Bug: 147029746
Test: manual
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=AirplaneModeEnablerTest
Change-Id: Ib39ab1881484f65bc5a3834b2828c6ba98198cca
