Implement "Round-Trip" to apk navigation

Directions API Navigation SDK
1

Hi,

I’m attempting to add the round-trip feature of the Graphhopper API to the example navigation APK. From what i understand the following section of code is from the MapBox API and handles the route generation, however I’m unsure of how to include the round-trip feature:

NavigationRoute.Builder builder = NavigationRoute.builder(this)
        .accessToken("pk." + getString(R.string.gh_key))
        .baseUrl(getString(R.string.base_url))
        .user("gh")
        .alternatives(true)
        .origin(location)
       . builder.destination(p);

Any help would be much appreciated.

Thanks
Alex

2

The easiest option is probably to do this similarly to how we fetch solutions from the OptimizationAPI. Just read the snapped points from the result and generate a new NavigationRoute through Mapbox with the resulting points. Let us know how it goes, contributions to the example navigation APK are welcome :slight_smile:.

2 Likes
3

Thanks for the help :slight_smile: Will give it a go