将数字添加到 mapbox 中的标记 android

Question

我正在尝试弄清楚如何在 mapbox 中以编程方式向标记添加数字以获得下图的结果

MARKERS WITH NUMBERS

这是显示一些标记的地图代码

public class DepartMissionFragment extends Fragment {
    private MapView mapView;

    private static final String TAG = "DirectionsActivity";


    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        Mapbox.getInstance(requireActivity(), getString(R.string.access_token));
        View view  = inflater.inflate(R.layout.fragment_mission_depart, container, false);

        mapView = view.findViewById(R.id.mapView20);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(@NonNull MapboxMap mapboxMap) {

                mapboxMap.addMarker(new MarkerOptions()
                        .position(new LatLng(33.589886, -7.603869))
                        .title("marker one"));
// It is possible to use .setIcon() to get a custom icon from ressources


                mapboxMap.addMarker(new MarkerOptions()
                        .position(new LatLng(33.589790, -7.603989))
                        .title("marker two"));

                mapboxMap.addMarker(new MarkerOptions()
                        .position(new LatLng(33.589190, -7.603089))
                        .title("marker three"));


                mapboxMap.addMarker(new MarkerOptions()
                        .position(new LatLng(33.588790, -7.603289))
                        .title("etc.."));

                mapboxMap.addMarker(new MarkerOptions()
                        .position(new LatLng(33.580790, -7.603989))
                        .title("etc...."));
                mapboxMap.setStyle(getString(R.string.navigation_guidance_day), new Style.OnStyleLoaded() {

                    @Override
                    public void onStyleLoaded(@NonNull Style style) {


                    }
                });

            }
        });
        return view;
    }

    @Override
    public void onAttach(@NonNull Context context) {
        super.onAttach(context);
    }

    @Override
    public void onStart() {
        super.onStart();
        mapView.onStart();
    }

    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    @Override
    public void onStop() {
        super.onStop();
        mapView.onStop();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mapView.onSaveInstanceState(outState);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }
}

我正在寻找一种为标记提供数字的方法，对我来说正确的方法是从 drawable 添加自定义标记。

欢迎任何其他方法。

Answer 1

与其使用 MapboxMap#addMarker 方法并根据可绘制资源显示标记，您可以使用符号图层从存储为 GeoJSON 要素的坐标添加图标，如 Mapbox 的 this example 所示Android 的地图 SDK。

将表示坐标的每个 Feature 添加到 GeoJSON object, you could add a property to each Feature's properties object containing the number to display on the marker for this coordinate. Then, in addition to the iconImage added with SymbolLayer#setProperties as shown in the example, you could also add a textField for each symbol populated by the property added to the GeoJSON. This symbol layer clustering example 时，显示了应用于集群用例的类似工作流。聚类示例和您的实现之间的区别主要在于，您不是从聚类计数中获取要显示的数字，而是从您为坐标指定的 GeoJSON 属性中获取它。

将数字添加到 mapbox 中的标记 android

Adding numbers to marker in mapbox android

java

mapbox

mapbox-marker

mapbox-android