java - Mapbox:位置符号(圆盘)显示在路线下方

Question

有人知道如何使用 Mapbox Android API 使 mapbox 中的位置“圆盘”出现在路线的上方吗？我遵循了 Mapbox Demo App 中的示例，但遗憾的是它仍然无法正常工作。这是问题的演示:

这是我初始化 map 的方式:

mapboxMap.setStyle(style, new Style.OnStyleLoaded() {
    @Override
    public void onStyleLoaded(@NonNull Style style) {
        loadedStyle = style;
        initRouteLayer();
        showActiveRoute();
        initIcons();
        initLocationComponent(style);
        initListeners();

        Log.i(TAG, "++ Repaint complete");
    }
});

指定路由的初始化:

private void initRouteLayer() {
    ROUTE_SOURCE_ID = UUID.randomUUID().toString();
    final String routeLayerId = UUID.randomUUID().toString();

    loadedStyle.addSource(new GeoJsonSource(ROUTE_SOURCE_ID,
            FeatureCollection.fromFeatures(new Feature[]{})));

    LineLayer routeLayer = new LineLayer(routeLayerId, ROUTE_SOURCE_ID);

    // Add the LineLayer to the map. This layer will display the directions route.
    routeLayer.setProperties(
            lineCap(Property.LINE_CAP_ROUND),
            lineJoin(Property.LINE_JOIN_ROUND),
            lineWidth(5f),
            lineColor(FrontendUtils.getColor(getContext(), R.color.activeRoute))
    );

    loadedStyle.addLayer(routeLayer);
}

private void showActiveRoute() {
    Log.d(TAG, "Showing active route (activeroute: " + hasActiveRoute()
            + ", fully loaded: " + isFullyLoaded() + ")");

    if(hasActiveRoute() && isFullyLoaded()) {
        // Retrieve and update the source designated for showing the directions route
        GeoJsonSource source = loadedStyle.getSourceAs(ROUTE_SOURCE_ID);

        if(source != null) {
            source.setGeoJson(routes.get(getActiveRouteIndex()));
        }
    }
}

这就是位置组件的初始化方式:

private void initLocationComponent(@NonNull Style loadedMapStyle) {
    // Get an instance of the component
    locationComponent = mapboxMap.getLocationComponent();

    LocationComponentOptions customLocationComponentOptions = LocationComponentOptions.builder(getContext())
            .foregroundDrawable(R.drawable.location_puck)
            .build();

    LocationComponentActivationOptions locationComponentActivationOptions =
            LocationComponentActivationOptions.builder(getContext(), loadedMapStyle)
                    .locationComponentOptions(customLocationComponentOptions)
                    .build();

    // Activate with options
    locationComponent.activateLocationComponent(locationComponentActivationOptions);

    // Enable to make component visible
    locationComponent.setLocationComponentEnabled(true);

    // Set the component's render mode
    locationComponent.setRenderMode(RenderMode.NORMAL);
}

除了由于某种原因在路线下方绘制了位置符号外， map 没有其他问题。我将非常感谢您的帮助!

Answer 1

目前的Mapbox SDK都有这个功能withRouteLineBelowLayerId以确保路线保持在指定层下方(在您的情况下为 LocationComponentConstants.LOCATION_INDICATOR_LAYER)。