* Don't finish the fragment from the controller (ugh!) instead just report the selected icon via a listener.
* Highlight the selected icon in the list.
* Cache the icon drawables (since we're using selectors for the colors, we don't need to swap them, one per icon resource id is enough).
* Improved the tests a bit too.
Bug: 333901673
Bug: 326442408
Test: ates
Flag: android.app.modes_ui
Change-Id: Ib2ec7a7e3ed99b13f9264aa6f7c209ee3f6967a0
* Different color if active.
* Trigger description / "ON" / "Paused" / "Tap to set up" depending on enabled and active status (strings may be revised later).
This CL also adds a helper class to create ZenModes, reducing boilerplate in unit tests.
Bug: 346575288
Test: atest com.android.settings.notification.modes
Flag: android.app.modes_ui
Change-Id: Ia0e16b8be5284d13bed4366cbee0f92748bf2f85