Mapbox Android：如何获取从当前位置到您选择的目的地的路线？
Posted
技术标签:
【中文标题】Mapbox Android：如何获取从当前位置到您选择的目的地的路线？【英文标题】：Mapbox Android: How to get directions from current location to a destination you choose? 【发布时间】：2016-09-06 02:20:13 【问题描述】：好的，所以我对 Mapbox 还很陌生，在此之前我使用过 GMaps，但我发现 Mapbox 更能满足我的需求，问题是我碰壁了。
我使用了他们网站上可用示例的组合，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，然后将其转换为用于在地图中绘制的坐标。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();
所以这里的某个地方是我的问题，我在网上找不到太多关于 Mapbox 的信息，因为他们的新 sdk 与以前的版本非常不同，主要是因为 MapView 和 MapboxMap 现在是分开的（这仍然让我感到困惑）。
任何帮助将不胜感激：D
：编辑：我主要是在设置目的地方面苦苦挣扎，因此我的很多当前变量都混淆了。如果你需要解释，我很乐意。
【问题讨论】：
请粘贴你的logcat 我的 logcat 似乎不起作用，“...调试器不再处于活动状态”是它所说的，但这是我的消息选项卡所说的：错误：（77、56）错误：不能查找符号变量特征 错误：(77, 80) 错误：找不到符号变量特征 错误：(84, 46) 错误：找不到符号变量纬度 错误：(97, 56) 错误：找不到符号变量上下文 错误：(99 , 9) 错误：找不到符号变量地址 错误:(100, 17) 错误: 找不到符号变量位置 错误:(101, 17) 错误: 找不到符号变量位置 错误:(186, 16) 错误: setMyLocationEnabled(boolean) is在 MapView 中不公开；无法从外部包访问错误:(187, 16) 错误: setMyLocationTrackingMode(int) 在 MapView 中不公开；无法从外部包访问错误：(188, 16) 错误：getMyLocation() 在 MapView 中不公开；无法从外部包访问：app:compileDebugJavaWithJavac FAILED Error:Execution failed for task ':app:compileDebugJavaWithJavac'。 您是否尝试清理并重建项目？ 嗯，我之前试过了，但没用，但现在可以了，给你 :) txt.do/5brjg 【参考方案1】：您的代码中存在一些错误，最大的问题是您仍在使用MapView 来获取位置信息，而您可以改用MapboxMap。这是一些粗略的代码，可以满足您的要求。它不会像你应该的那样检查用户权限，但它会告诉你如何做 Mapbox 的东西。
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));
@Override
public void onResume()
super.onResume();
mapView.onResume();
@Override
public void onPause()
super.onPause();
mapView.onPause();
@Override
protected void onSaveInstanceState(Bundle outState)
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
@Override
protected void onDestroy()
super.onDestroy();
mapView.onDestroy();
@Override
public void onLowMemory()
super.onLowMemory();
mapView.onLowMemory();
希望这会有所帮助！
【讨论】：
谢谢你，我会试一试，让你知道：D 它工作得很好，但不幸的是，我的地理编码似乎无法在全球范围内工作。所以很遗憾，我无法在自己的国家进行测试，您有什么建议吗？ 好的，再次感谢，我目前居住在南非。它说“地点”是否意味着搜索南非地址将没有结果？ 您对我如何解决这个问题有什么建议吗？以上是关于Mapbox Android：如何获取从当前位置到您选择的目的地的路线？的主要内容，如果未能解决你的问题，请参考以下文章
Mapbox：我想使用 Locationengine 来获取用户的当前位置，但它给我一个错误