Java-Mapbox Android：如何获取从当前位置到您选择的目的地的路线？

概述好的,所以我对Mapbox还是很陌生,在此之前我曾经使用过GMaps,但是我发现Mapbox能够满足我的需要,但问题是我碰壁了.我已经在其网站上使用了示例的组合,例如https://www.mapbox.com/android-sdk/examples/geocoding和https://www.mapbox.com/android-sdk/examples/directions我试

好的,所以我对MapBox还是很陌生,在此之前我曾经使用过GMaps,但是我发现MapBox能够满足我的需要,但问题是我碰壁了.

我已经在其网站上使用了示例的组合,例如

https://www.mapbox.com/android-sdk/examples/geocoding和
https://www.mapbox.com/android-sdk/examples/directions

我试图让用户搜索目的地,然后将其转换为坐标,以用于在地图上进行绘制.然后,我想画一条从他们当前位置到目的地的路线,这就是我的问题所在.

 mapVIEw.getMapAsync(new OnMapReadyCallback() {        @OverrIDe        public voID onMapReady(MapBoxMap mapBoxMap) {            map = mapBoxMap;            // Set the origin waypoint to the devices location            position origin = position.fromCoordinates(mapBoxMap.getMyLocation().getLongitude(), mapBoxMap.getMyLocation().getLatitude());            // Set the destination waypoint to the location point long clicked by the user            final position destination = updateMap(feature.getLongitude(), feature.getLatitude());            mapBoxMap.addMarker(new MarkerOptions()                    .position(new LatLng(origin.getLatitude(), origin.getLongitude()))                    .Title("Origin")                    .snippet("Alhambra"));            mapBoxMap.addMarker(new MarkerOptions()                    .position(new LatLng(latitude, destination.getLongitude()))                    .Title("Destination")                    .snippet("Plaza del Triunfo"));            // Get route from API            try {                getRoute(origin, destination);            } catch (ServicesException e) {                e.printstacktrace();            }        }    });    AndroIDGeocoder geocoder = new AndroIDGeocoder(context, Locale.getDefault());    geocoder.setAccesstoken(MAPBox_ACCESS_TOKEN);    addresses = geocoder.getFromLocation(            location.getLatitude(),            location.getLongitude(),            1);    // Set up autocomplete Widget    GeocoderautoCompleteVIEw autocomplete = (GeocoderautoCompleteVIEw) findVIEwByID(R.ID.query);    autocomplete.setAccesstoken("pk.eyJ1IjoiYmV1dHJveCIsImEiOiJjaW5ybzlwYnQwMGlqdnhtmno3cmtwNTlqIn0.y16mZzmertL4-eEfQNGeqQ");    autocomplete.setType(GeoCodingCriteria.TYPE_POI);    autocomplete.setonFeatureListener(new GeocoderautoCompleteVIEw.OnFeatureListener() {        @OverrIDe        public voID OnFeatureClick(GeoCodingFeature feature) {            position position = feature.asposition();            updateMap(position.getLatitude(), position.getLongitude());        }    });}private voID getRoute(position origin, position destination) throws ServicesException {    MapBoxDirections clIEnt = new MapBoxDirections.Builder()            .setorigin(origin)            .setDestination(destination)            .setProfile(DirectionsCriteria.PROfile_CYCliNG)            .setAccesstoken("pk.eyJ1IjoiYmV1dHJveCIsImEiOiJjaW5ybzlwYnQwMGlqdnhtmno3cmtwNTlqIn0.y16mZzmertL4-eEfQNGeqQ")            .build();    clIEnt.enqueueCall(new Callback<DirectionsResponse>() {        @OverrIDe        public voID onResponse(Call<DirectionsResponse> call, Response<DirectionsResponse> response) {            // You can get the generic http info about the response            Log.d(TAG, "Response code: " + response.code());            if (response.body() == null) {                Log.e(TAG, "No routes found, make sure you set the right user and access token.");                return;            }            // display some info about the route            currentRoute = response.body().getRoutes().get(0);            Log.d(TAG, "distance: " + currentRoute.getdistance());            Toast.makeText(MainActivity.this, "Route is " +  currentRoute.getdistance() + " meters long.", Toast.LENGTH_SHORT).show();            // Draw the route on the map            drawRoute(currentRoute);        }        @OverrIDe        public voID onFailure(Call<DirectionsResponse> call, Throwable t) {            Log.e(TAG, "Error: " + t.getMessage());            Toast.makeText(MainActivity.this, "Error: " + t.getMessage(), Toast.LENGTH_SHORT).show();        }    });}private voID drawRoute(DirectionsRoute route) {    // Convert linestring coordinates into LatLng[]    linestring linestring = linestring.frompolyline(route.getGeometry(), Constants.OSRM_PRECISION_V5);    List<position> coordinates = linestring.getCoordinates();    LatLng[] points = new LatLng[coordinates.size()];    for (int i = 0; i < coordinates.size(); i++) {        points[i] = new LatLng(                coordinates.get(i).getLatitude(),                coordinates.get(i).getLongitude());    }    // Draw Points on MapVIEw    map.addpolyline(new polylineoptions()            .add(points)            .color(color.parsecolor("#009688"))            .wIDth(5));}private voID myLocation() {    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {        // Todo: ConsIDer calling        //    ActivityCompat#requestPermissions        // here to request the missing permissions, and then overrIDing        //   public voID onRequestPermissionsResult(int requestCode, String[] permissions,        //                                          int[] grantResults)        // to handle the case where the user grants the permission. See the documentation        // for ActivityCompat#requestPermissions for more details.        return;    }    mapVIEw.setMyLocationEnabled(true);    mapVIEw.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FolLOW);    mapVIEw.getMyLocation();}

因此,这是我的问题,我无法在网上找到太多有关MapBox的信息,因为它们的新SDK与以前的版本有很大不同,主要是因为MapVIEw和MapBoxMap现在已分开(这仍然让我感到困惑).

任何帮助将不胜感激：D

：Edit：我主要是在设置目的地方面苦苦挣扎,因此,我当前的很多变量都混在一起了.如果您需要解释,我会很高兴.

解决方法:

您的代码中存在一些错误,最大的错误是,当您可以改用MapBoxMap时,仍在使用MapVIEw获取位置信息.这里有一些粗糙的代码可以满足您的要求.它不会像您应有的那样检查用户权限,但会向您显示如何执行MapBox的 *** 作.

import androID.app.Activity;import androID.graphics.color;import androID.os.Bundle;import androID.util.Log;import androID.Widget.Toast;import com.mapBox.mapboxsdk.annotations.MarkerOptions;import com.mapBox.mapboxsdk.annotations.polylineoptions;import com.mapBox.mapboxsdk.geometry.LatLng;import com.mapBox.mapboxsdk.maps.MapVIEw;import com.mapBox.mapboxsdk.maps.MapBoxMap;import com.mapBox.mapboxsdk.maps.OnMapReadyCallback;import com.mapBox.services.Constants;import com.mapBox.services.androID.geocoder.ui.GeocoderautoCompleteVIEw;import com.mapBox.services.commons.ServicesException;import com.mapBox.services.commons.geoJson.linestring;import com.mapBox.services.commons.models.position;import com.mapBox.services.directions.v5.DirectionsCriteria;import com.mapBox.services.directions.v5.MapBoxDirections;import com.mapBox.services.directions.v5.models.DirectionsResponse;import com.mapBox.services.directions.v5.models.DirectionsRoute;import com.mapBox.services.geoCoding.v5.GeoCodingCriteria;import com.mapBox.services.geoCoding.v5.models.GeoCodingFeature;import java.util.List;import retrofit2.Call;import retrofit2.Callback;import retrofit2.Response;public class MainActivity extends Activity {    private final static String TAG = "MainActivity";    private MapVIEw mapVIEw;    private MapBoxMap map;    private DirectionsRoute currentRoute;    private position origin;    private position destination;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main);        // Setup the MapVIEw        mapVIEw = (MapVIEw) findVIEwByID(R.ID.mapVIEw);        mapVIEw.onCreate(savedInstanceState);        mapVIEw.getMapAsync(new OnMapReadyCallback() {            @OverrIDe            public voID onMapReady(MapBoxMap mapBoxMap) {                map = mapBoxMap;                mapBoxMap.setMyLocationEnabled(true);                // Set up autocomplete Widget                GeocoderautoCompleteVIEw autocomplete = (GeocoderautoCompleteVIEw) findVIEwByID(R.ID.query);            autocomplete.setAccesstoken("<your access token>");            autocomplete.setType(GeoCodingCriteria.TYPE_POI);            autocomplete.setonFeatureListener(new GeocoderautoCompleteVIEw.OnFeatureListener() {                @OverrIDe                public voID OnFeatureClick(GeoCodingFeature feature) {                    if(map.getMyLocation() != null) {                        // Set the origin as user location only if we can get their location                        origin = position.fromCoordinates(map.getMyLocation().getLongitude(), map.getMyLocation().getLatitude());                    }else{                        return;                    }                    destination = feature.asposition();                    // Add origin and destination to the map                    map.addMarker(new MarkerOptions()                            .position(new LatLng(origin.getLatitude(), origin.getLongitude())));                    map.addMarker(new MarkerOptions()                            .position(new LatLng(destination.getLatitude(), destination.getLongitude())));                    // Get route from API                    try {                        getRoute(origin, destination);                    } catch (ServicesException e) {                        e.printstacktrace();                    }                }            });        }    });}private voID getRoute(position origin, position destination) throws ServicesException {    MapBoxDirections clIEnt = new MapBoxDirections.Builder()            .setorigin(origin)            .setDestination(destination)            .setProfile(DirectionsCriteria.PROfile_CYCliNG)            .setAccesstoken("<your access token>")            .build();    clIEnt.enqueueCall(new Callback<DirectionsResponse>() {        @OverrIDe        public voID onResponse(Call<DirectionsResponse> call, Response<DirectionsResponse> response) {            // You can get the generic http info about the response            Log.d(TAG, "Response code: " + response.code());            if (response.body() == null) {                Log.e(TAG, "No routes found, make sure you set the right user and access token.");                return;            }            // Print some info about the route            currentRoute = response.body().getRoutes().get(0);            Log.d(TAG, "distance: " + currentRoute.getdistance());            Toast.makeText(MainActivity.this, "Route is " +  currentRoute.getdistance() + " meters long.", Toast.LENGTH_SHORT).show();            // Draw the route on the map            drawRoute(currentRoute);        }        @OverrIDe        public voID onFailure(Call<DirectionsResponse> call, Throwable t) {            Log.e(TAG, "Error: " + t.getMessage());            Toast.makeText(MainActivity.this, "Error: " + t.getMessage(), Toast.LENGTH_SHORT).show();        }    });}private voID drawRoute(DirectionsRoute route) {    // Convert linestring coordinates into LatLng[]    linestring linestring = linestring.frompolyline(route.getGeometry(), Constants.OSRM_PRECISION_V5);    List<position> coordinates = linestring.getCoordinates();    LatLng[] points = new LatLng[coordinates.size()];    for (int i = 0; i < coordinates.size(); i++) {        points[i] = new LatLng(                coordinates.get(i).getLatitude(),                coordinates.get(i).getLongitude());    }    // Draw Points on MapVIEw    map.addpolyline(new polylineoptions()            .add(points)            .color(color.parsecolor("#009688"))            .wIDth(5));}@OverrIDepublic voID onResume() {    super.onResume();    mapVIEw.onResume();}@OverrIDepublic voID onPause() {    super.onPause();    mapVIEw.onPause();}@OverrIDeprotected voID onSaveInstanceState(Bundle outState) {    super.onSaveInstanceState(outState);    mapVIEw.onSaveInstanceState(outState);}@OverrIDeprotected voID onDestroy() {    super.onDestroy();    mapVIEw.onDestroy();}@OverrIDepublic voID onLowMemory() {    super.onLowMemory();    mapVIEw.onLowMemory();}

希望这可以帮助！

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