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..
// New plugins for Hilt
apply plugin: 'kotlin-kapt'
apply plugin: 'dagger.hilt.android.plugin'
...

dependencies {
    ...

    // To observe the flow within the Service based on the lifecycle

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@AndroidEntryPoint
class MainActivity : AppCompatActivity(), SharedPreferences.OnSharedPreferenceChangeListener {
    ...

    // Data store from which to receive location updates via Flow, injected via Hilt
    @Inject
    lateinit var repository: LocationRepository

    // Get a reference to the Job from the Flow so we can stop it from UI events
    private var locationFlow: Job? = null

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@AndroidEntryPoint
class ForegroundOnlyLocationService : LifecycleService() {
    ...
  
    // Data store (in this case, the SharedLocationManager) that the service will observe, injected via Hilt
    @Inject
    lateinit var repository: LocationRepository

    // Get a reference to the Job from the Flow so we can stop it from UI events
    private var locationFlow: Job? = null

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class LocationRepository @Inject constructor(
        private val sharedLocationManager: SharedLocationManager
) {
    /**
     * Observable flow for location updates
     */
    fun getLocations() = sharedLocationManager.locationFlow()
}

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/**
 * Configuration for DI on the repository and shared location manager
 */
@Module
@InstallIn(SingletonComponent::class)
object DataModule {

    @Provides
    @Singleton
    fun provideSharedLocationManager(

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// Required for Hilt dependency injection
@HiltAndroidApp
class LocationApplication : Application() {
    // No need to cancel this scope as it'll be torn down with the process - see https://medium.com/androiddevelopers/coroutines-patterns-for-work-that-shouldnt-be-cancelled-e26c40f142ad
    val applicationScope = GlobalScope
}

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/**
 * Wraps the LocationServices and fused location provider in callbackFlow
 *
 * Derived in part from https://github.com/android/location-samples/blob/main/LocationUpdatesBackgroundKotlin/app/src/main/java/com/google/android/gms/location/sample/locationupdatesbackgroundkotlin/data/MyLocationManager.kt
 * and https://github.com/googlecodelabs/kotlin-coroutines/blob/master/ktx-library-codelab/step-06/myktxlibrary/src/main/java/com/example/android/myktxlibrary/LocationUtils.kt
 */
class SharedLocationManager constructor(
    private val context: Context,
    externalScope: CoroutineScope
) {

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  /**
   * Handles a fresh Navigation Message. The message is in its raw format.
   */
  public void onNavMessageReported(byte prn, byte type, short id, byte[] rawData) {
    Preconditions.checkArgument(type == 1, "Unsupported NavigationMessage Type: " + type);
    Preconditions.checkArgument(
        rawData != null && rawData.length == L1_CA_MESSAGE_LENGTH_BYTES,
        "Invalid length of rawData for L1 C/A");
    synchronized (fullyDecodedIntermediateEphemerides) {
      switch (id) {

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  /**
   * Parses a string array containing an updates to the navigation message and return the most
   * recent {@link GpsNavMessageProto}.
   */
  public void parseHwNavigationMessageUpdates(GnssNavigationMessage navigationMessage) {
    byte messagePrn = (byte) navigationMessage.getSvid();
    byte messageType = (byte) (navigationMessage.getType() >> 8);
    int subMessageId = navigationMessage.getSubmessageId();

    byte[] messageRawData = navigationMessage.getData();

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#   Nav	Svid	Type	Status	MessageId	Sub-messageId	Data(Bytes)
Nav	22	769	1	5	1	8	43	109	105	-31	-32	75	89	-100	35	-112
Nav	13	769	1	5	1	8	43	105	64	-45	-24	-119	-18	126	-97	72
Nav	12	769	1	5	1	8	43	104	-58	-72	-80	-109	-31	106	-65	-64
Nav	22	769	1	5	2	16	-85	0	-124	-112	8	5	-61	9	-67	-56
Nav	5	257	1	25	4	34	-64	116	36	37	121	-84	120	31	-18	111