Examples
Getting started (3)Create a simple map viewDynamically build a map viewSupport map fragmentDynamic styling (30)Add a new layer below labelsAdd a vector tile sourceHillshadingAdd a WMS sourceAdjust a layer's opacityAnimate marker positionAnimated image source (GIF)Icon update based on API responseChange a layer's colorChange a map's languageColor dependent on zoom levelClick to add photoIndoor MapSymbol layer iconsStyle with missing iconMarker following routePicture in picturePulsing layer opacityShow time lapseButton interaction stylingText anchor positionOpacity fadeShow and hide layersSymbolLayer iconsMultiple text formatsAdjust text labelsTransparent render surfaceUse an image sourceAnimated icon movementVariable label placementExtrusions (5)Adjust light location and colorDisplay 3D building height based on vector dataExtrude polygons for 3D indoor mappingRotate and tilt with 3D buildingsUse GeoJSON data to set extrusion heightCamera (5)Animate the map cameraFit camera in bounding boxRestrict map panningRotating cameraZoom to show a cluster's leavesData visualization (33)Baseball spray chartDisplay water depthBiometric fingerprintCalendar integrationCircle icon toggleCircleLayer clustersCircle to icon transitionCircle radiusCreate a line layerCreate hotspots from pointsData time lapseShow heatmap dataDraw a GeoJSON lineDraw a polygon with holesDraw multiple geometriesDraw a polygonJoin local JSON data with vector tile geometriesLine gradientLine behind moving iconMultiple expressionsIcon setting based on Feature propertyOutlined polygon holeSatellite land selectShared preferencesStyle circles categoricallyStyle lines using an identity property functionSpinning iconToggle collision detectionSymbolLayer clusteringSymbol layer info windowZoom-based icon switchUpdate a choropleth layer by zoom levelStyling heatmapsOffline (3)Cache managementA simple offline mapOffline managerQuerying the map (3)Building outlineQuery a map featureSelect a buildingMap style (4)Style attributionMapbox Studio styleLocal style or custom raster styleDefault stylesUser interaction (12)Click on single layerFeature countDrawing search areaSymbol layer icon size changeHighlighted lineInset mapLocation pickerBackground fogRecyclerView interactionSearch again in an areaSnaking directionsRecyclerView DirectionsImage generation (2)Snapshot NotificationShare snapshot imageDevice location (7)Track device locationBasic pulsing locationLocation camera optionsCustom pulsing locationCustomized location iconShow a user's locationShow a user's location on a map fragment

Display water depth

activity_bathymetry
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:mapbox="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
mapbox:mapbox_cameraTargetLat="44.934448"
mapbox:mapbox_cameraTargetLng="-85.671378"
mapbox:mapbox_cameraZoom="15.69"
mapbox:mapbox_cameraZoomMin="14.9" />
</androidx.constraintlayout.widget.ConstraintLayout>
BathymetryActivity.java
package com.mapbox.mapboxandroiddemo.examples.dds;
import android.graphics.Color;
import android.os.Bundle;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.geometry.LatLngBounds;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Style;
import com.mapbox.mapboxsdk.style.layers.FillLayer;
import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import java.net.URI;
import java.net.URISyntaxException;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import timber.log.Timber;
import static com.mapbox.mapboxsdk.style.expressions.Expression.eq;
import static com.mapbox.mapboxsdk.style.expressions.Expression.geometryType;
import static com.mapbox.mapboxsdk.style.expressions.Expression.get;
import static com.mapbox.mapboxsdk.style.expressions.Expression.interpolate;
import static com.mapbox.mapboxsdk.style.expressions.Expression.linear;
import static com.mapbox.mapboxsdk.style.expressions.Expression.literal;
import static com.mapbox.mapboxsdk.style.expressions.Expression.rgb;
import static com.mapbox.mapboxsdk.style.expressions.Expression.stop;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillColor;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.fillOpacity;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textAllowOverlap;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textColor;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textField;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textSize;
public class BathymetryActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final String GEOJSON_SOURCE_ID = "GEOJSON_SOURCE_ID";
private static final LatLngBounds LAKE_BOUNDS = new LatLngBounds.Builder()
.include(new LatLng(44.936236, -85.673450))
.include(new LatLng(44.932955, -85.669272))
.build();
private MapView mapView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Mapbox access token is configured here. This needs to be called either in your application
// object or in the same activity which contains the mapview.
Mapbox.getInstance(this, getString(R.string.access_token));
// This contains the MapView in XML and needs to be called after the access token is configured.
setContentView(R.layout.activity_bathymetry);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
}
@Override
public void onMapReady(@NonNull final MapboxMap mapboxMap) {
mapboxMap.setStyle(Style.OUTDOORS, new Style.OnStyleLoaded() {
@Override
public void onStyleLoaded(@NonNull Style style) {
// Set bounds to Lawrence Lake, Michigan
mapboxMap.setLatLngBoundsForCameraTarget(LAKE_BOUNDS);
// Remove lake label layer
style.removeLayer("water-label");
try {
// Retrieve GeoJSON from local file and add it to the map's style
style.addSource(new GeoJsonSource(GEOJSON_SOURCE_ID, new URI("asset://bathymetry-data.geojson")));
} catch (URISyntaxException exception) {
Timber.d(exception);
}
setUpDepthFillLayers(style);
setUpDepthNumberSymbolLayer(style);
}
});
}
/**
* Adds a FillLayer and uses data-driven styling to display the lake's areas
*/
private void setUpDepthFillLayers(@NonNull Style loadedMapStyle) {
FillLayer depthPolygonFillLayer = new FillLayer("DEPTH_POLYGON_FILL_LAYER_ID", GEOJSON_SOURCE_ID);
depthPolygonFillLayer.withProperties(
fillColor(interpolate(linear(),
get("depth"),
stop(5, rgb(16, 158, 210)),
stop(10, rgb(37, 116, 145)),
stop(15, rgb(69, 102, 124)),
stop(30, rgb(31, 52, 67)))),
fillOpacity(.7f));
// Only display Polygon Features in this layer
depthPolygonFillLayer.setFilter(eq(geometryType(), literal("Polygon")));
loadedMapStyle.addLayer(depthPolygonFillLayer);
}
/**
* Adds a SymbolLayer to display the depth of the lake's areas
*/
private void setUpDepthNumberSymbolLayer(@NonNull Style loadedMapStyle) {
SymbolLayer depthNumberSymbolLayer = new SymbolLayer("DEPTH_NUMBER_SYMBOL_LAYER_ID",
GEOJSON_SOURCE_ID);
depthNumberSymbolLayer.withProperties(
textField("{depth}"),
textSize(17f),
textColor(Color.WHITE),
textAllowOverlap(true)
);
// Only display Point Features in this layer
depthNumberSymbolLayer.setFilter(eq(geometryType(), literal("Point")));
loadedMapStyle.addLayerAbove(depthNumberSymbolLayer, "DEPTH_POLYGON_FILL_LAYER_ID");
}
// Add the mapView lifecycle to the activity's lifecycle methods
@Override
public void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onStart() {
super.onStart();
mapView.onStart();
}
@Override
protected void onStop() {
super.onStop();
mapView.onStop();
}
@Override
public void onPause() {
super.onPause();
mapView.onPause();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
}
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