Medium article - Room + Flow for location updates

MainActivity.kt

@AndroidEntryPoint
class MainActivity : AppCompatActivity(), SharedPreferences.OnSharedPreferenceChangeListener {
  ...
    
  // Repository (in this case, Room database) from which to receive location updates via Flow, injected via Hilt
  @Inject
  lateinit var repository: LocationRepository  
  
  override fun onCreate(savedInstanceState: Bundle?) {
    ...
    
    // Observe locations via Flow as they are inserted into Room by the Service
    repository.getLocations()
        .flowWithLifecycle(lifecycle, Lifecycle.State.STARTED)
        .onEach {
            if (it.isNotEmpty()) {
                logResultsToScreen("Foreground location: ${it[it.size - 1].toText()}")
            }
        }
        .launchIn(lifecycleScope)
  }
  ...
}