Map-matched location provider
Map-matched locations
Locations provided by a location service have an element of inaccuracy. Using the raw location to update the current user’s position can lead to a position indicator that is unaligned with the Route
. To solve this inaccuracy problem, TomTomNavigation
produces map-matched locations based on raw locations from the provided LocationProvider
. Matched locations are observed through the LocationMapMatchedListener
.
1val locationMapMatchedListener =2 LocationMapMatchedListener { mapMatchingResult: MapMatchingResult ->3 // Your code goes here4 }5tomTomNavigation.addLocationMapMatchedListener(locationMapMatchedListener)
To remove a previously-added listener, call TomTomNavigation.removeLocationMapMatchedListener(LocationMapMatchedListener)
.
tomTomNavigation.removeLocationMapMatchedListener(locationMapMatchedListener)
To make it easier to provide a map-matched location into the TomTomMap
, the Navigation module provides the map-matched LocationProvider
. It is a special implementation of a LocationProvider
that accepts TomTomNavigation
.
Before using the map-matched LocationProvider
, add the module dependency in the build.gradle.kts
of your application module and synchronize the project:
implementation("com.tomtom.sdk.location:provider-map-matched:1.20.1")
Then you can create map-matched LocationProvider
and use it in the TomTomMap
.
val mapMatchedLocationProvider = MapMatchedLocationProviderFactory.create(navigation = tomTomNavigation)tomTomMap.setLocationProvider(mapMatchedLocationProvider)
If
SimulationLocationProvider
is used inTomTomNavigation
, make sure that it is used inTomTomMap
instead of map-matchedLocationProvider
.
Next steps
Since you have learned about location tracking, here are recommendations for the next steps: