Context#getResources loading is done based on the last SIM to
come up, we may get wrong customization settings.
This fix check all active subscriptions and shows the preference
when there is one SIM applies.
Bug: 138956509
Test: CellularFallbackPreferenceControllerTest
manual test:
1. Insert feature supported SIM and check UI.
2. Remove feature supported SIM and check UI.
3. Turn airplane mode on and check 1. and 2..
Change-Id: I72b6db415429181395a02f163889bb1b9c0f070f
Running Settings Robolectric tests
The full suite
$ croot
$ make RunSettingsRoboTests
Running a single test class
$ croot
$ make RunSettingsRoboTests ROBOTEST_FILTER=<ClassName>
For example:
make RunSettingsRoboTests ROBOTEST_FILTER=CodeInspectionTest
You can also use partial class name in ROBOTEST_FILTER. If the partial class name matches multiple file names, all of them will be executed.