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introduce mock location for demo #174

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introduce mock location for demo #174

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f191073
introduce mock location to start at a different location than GPS
karussell Jul 16, 2025
9d1ff47
disable by default
karussell Jul 17, 2025
3bcf9e1
Merge branch 'main' into allow_mock_location
karussell Jul 17, 2025
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47 changes: 42 additions & 5 deletions app/src/main/java/org/maplibre/navigation/android/example/GraphHopperNavigationActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,10 @@ import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody
import org.maplibre.android.camera.CameraUpdateFactory
import org.maplibre.geojson.turf.TurfUnit
import org.maplibre.navigation.android.navigation.ui.v5.route.NavigationMapRoute
import org.maplibre.navigation.core.location.Location
import timber.log.Timber
import java.io.IOException
import java.util.Locale
Expand All @@ -50,6 +52,17 @@ class GraphHopperNavigationActivity :

private var simulateRoute = false

// MOCK LOCATION CONFIGURATION
private val useMockLocation = false
private val mockLocation = Location(
longitude = 13.398931, // Berlin
latitude = 52.51096,
accuracyMeters = 10f,
bearing = 0f,
speedMetersPerSeconds = 0f,
timeMilliseconds = System.currentTimeMillis()
)

@SuppressLint("MissingPermission")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
Expand All @@ -67,7 +80,7 @@ class GraphHopperNavigationActivity :

binding.startRouteButton.setOnClickListener {
route?.let { route ->
val userLocation = mapLibreMap.locationComponent.lastKnownLocation ?: return@let
val userLocation = getMockOrRealLocation() ?: return@let
val options = NavigationLauncherOptions.builder()
.directionsRoute(route)
.shouldSimulateRoute(simulateRoute)
Expand Down Expand Up @@ -109,9 +122,15 @@ class GraphHopperNavigationActivity :
navigationMapRoute = NavigationMapRoute(binding.mapView, mapLibreMap)
mapLibreMap.addOnMapClickListener(this)

val location = getMockOrRealLocation()
if(location != null)
mapLibreMap.animateCamera(CameraUpdateFactory.
newLatLngZoom(LatLng(location.latitude, location.longitude), 15.0))

Snackbar.make(
findViewById(R.id.container),
"Tap map to place destination",
if (useMockLocation) "Using mock location - Tap map to place destination"
else "Tap map to place destination",
Snackbar.LENGTH_LONG,
).show()
}
Expand Down Expand Up @@ -139,6 +158,24 @@ class GraphHopperNavigationActivity :
}
}

// Helper function to get mock or real location
private fun getMockOrRealLocation(): Location? {
return if (useMockLocation) {
mockLocation
} else {
mapLibreMap.locationComponent.lastKnownLocation?.let { loc ->
Location(
longitude = loc.longitude,
latitude = loc.latitude,
accuracyMeters = loc.accuracy,
bearing = loc.bearing,
speedMetersPerSeconds = loc.speed,
timeMilliseconds = loc.time
)
}
}
}

override fun onMapClick(point: LatLng): Boolean {
destination = Point(point.longitude, point.latitude)

Expand All @@ -150,7 +187,7 @@ class GraphHopperNavigationActivity :

private fun calculateRoute() {
binding.startRouteLayout.visibility = View.GONE
val userLocation = mapLibreMap.locationComponent.lastKnownLocation
val userLocation = getMockOrRealLocation()
val destination = destination
if (userLocation == null) {
Timber.d("calculateRoute: User location is null, therefore, origin can't be set.")
Expand Down Expand Up @@ -210,7 +247,7 @@ class GraphHopperNavigationActivity :
"calculateRoute GraphHopperRouting responseBodyJson: %s",
responseBodyJson
)
val maplibreResponse = DirectionsResponse.fromJson(responseBodyJson);
val maplibreResponse = DirectionsResponse.fromJson(responseBodyJson)
this@GraphHopperNavigationActivity.route = maplibreResponse.routes
.first()
.copy(
Expand Down Expand Up @@ -281,4 +318,4 @@ class GraphHopperNavigationActivity :
super.onSaveInstanceState(outState)
binding.mapView.onSaveInstanceState(outState)
}
}
}
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