Examples
Getting started (3)Create a simple map viewDynamically build a map viewSupport map fragmentDynamic styling (30)HillshadingAdd a vector tile sourceAdd a new layer below labelsAnimate marker positionAdjust a layer's opacityShow time lapseAnimated image source (GIF)Icon update based on API responseChange a layer's colorChange a map's languageColor dependent on zoom levelClick to add photoIndoor MapMarker following routeStyle with missing iconSymbol layer iconsPicture in picturePulsing layer opacityAdd a WMS sourceText anchor positionButton interaction stylingOpacity fadeShow and hide layersSymbolLayer iconsAdjust text labelsMultiple text formatsTransparent 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 radiusCircle to icon transitionCreate a line layerCreate hotspots from pointsData time lapseShow heatmap dataDraw a GeoJSON lineDraw a polygon with holesDraw a polygonDraw multiple geometriesJoin local JSON data with vector tile geometriesLine gradientLine behind moving iconMultiple expressionsIcon setting based on Feature propertyOutlined polygon holeSatellite land selectShared preferencesSpinning iconStyle circles categoricallyStyle lines using an identity property functionToggle 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 attributionLocal style or custom raster styleDefault stylesMapbox Studio styleUser interaction (12)Click on single layerFeature countDrawing search areaHighlighted lineSymbol layer icon size changeInset mapLocation pickerBackground fogRecyclerView DirectionsSearch again in an areaSnaking directionsRecyclerView interactionImage generation (2)Snapshot NotificationShare snapshot imageDevice location (7)Track device locationBasic pulsing locationLocation camera optionsCustom pulsing locationCustomized location iconShow a user's location on a map fragmentShow a user's location

Circle to icon transition

activity_circle_to_icon_transition
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:mapbox="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.mapbox.mapboxandroiddemo.examples.dds.CircleToIconTransitionActivity">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
mapbox:mapbox_cameraTargetLat="34.692349"
mapbox:mapbox_cameraTargetLng="135.497272"
mapbox:mapbox_cameraZoom="8"
mapbox:mapbox_cameraZoomMin="6" />
</FrameLayout>
CircleToIconTransitionActivity.java
package com.mapbox.mapboxandroiddemo.examples.dds;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.Toast;
import com.mapbox.geojson.Feature;
import com.mapbox.geojson.FeatureCollection;
import com.mapbox.geojson.Point;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraPosition;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
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.CircleLayer;
import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import com.mapbox.mapboxsdk.utils.BitmapUtils;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
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.stop;
import static com.mapbox.mapboxsdk.style.expressions.Expression.zoom;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleColor;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleOpacity;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleRadius;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconIgnorePlacement;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconSize;
/**
* Create a smooth visual transition between circles and icons based on zooming in and out.
*/
public class CircleToIconTransitionActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final float BASE_CIRCLE_INITIAL_RADIUS = 3.4f;
private static final float RADIUS_WHEN_CIRCLES_MATCH_ICON_RADIUS = 14f;
private static final float ZOOM_LEVEL_FOR_START_OF_BASE_CIRCLE_EXPANSION = 11f;
private static final float ZOOM_LEVEL_FOR_SWITCH_FROM_CIRCLE_TO_ICON = 12f;
private static final float FINAL_OPACITY_OF_SHADING_CIRCLE = .5f;
private static final String BASE_CIRCLE_COLOR = "#3BC802";
private static final String SHADING_CIRCLE_COLOR = "#858585";
private static final String SOURCE_ID = "SOURCE_ID";
private static final String ICON_LAYER_ID = "ICON_LAYER_ID";
private static final String BASE_CIRCLE_LAYER_ID = "BASE_CIRCLE_LAYER_ID";
private static final String SHADOW_CIRCLE_LAYER_ID = "SHADOW_CIRCLE_LAYER_ID";
private static final String ICON_IMAGE_ID = "ICON_ID";
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_circle_to_icon_transition);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
}
@Override
public void onMapReady(final MapboxMap mapboxMap) {
mapboxMap.setStyle(new Style.Builder().fromUri(Style.LIGHT)
// Add images to the map so that the SymbolLayers can reference the images.
.withImage(ICON_IMAGE_ID, BitmapUtils.getBitmapFromDrawable(
getResources().getDrawable(R.drawable.atm_symbol_icon)))
// Add GeoJSON data to the GeoJsonSource and then add the GeoJsonSource to the map
.withSource(new GeoJsonSource(SOURCE_ID,
FeatureCollection.fromFeatures(initFeatureArray()))), new Style.OnStyleLoaded() {
@Override
public void onStyleLoaded(@NonNull Style style) {
// Add the base CircleLayer, which will show small circles when the map is zoomed far enough
// away from the map.
CircleLayer baseCircleLayer = new CircleLayer(BASE_CIRCLE_LAYER_ID, SOURCE_ID).withProperties(
circleColor(Color.parseColor(BASE_CIRCLE_COLOR)),
circleRadius(
interpolate(
linear(), zoom(),
stop(ZOOM_LEVEL_FOR_START_OF_BASE_CIRCLE_EXPANSION, BASE_CIRCLE_INITIAL_RADIUS),
stop(ZOOM_LEVEL_FOR_SWITCH_FROM_CIRCLE_TO_ICON, RADIUS_WHEN_CIRCLES_MATCH_ICON_RADIUS)
)
)
);
style.addLayer(baseCircleLayer);
// Add a "shading" CircleLayer, whose circles' radii will match the radius of the SymbolLayer
// circular icon
CircleLayer shadowTransitionCircleLayer = new CircleLayer(SHADOW_CIRCLE_LAYER_ID, SOURCE_ID)
.withProperties(
circleColor(Color.parseColor(SHADING_CIRCLE_COLOR)),
circleRadius(RADIUS_WHEN_CIRCLES_MATCH_ICON_RADIUS),
circleOpacity(
interpolate(
linear(), zoom(),
stop(ZOOM_LEVEL_FOR_START_OF_BASE_CIRCLE_EXPANSION - .5, 0),
stop(ZOOM_LEVEL_FOR_START_OF_BASE_CIRCLE_EXPANSION, FINAL_OPACITY_OF_SHADING_CIRCLE)
)
)
);
style.addLayerBelow(shadowTransitionCircleLayer, BASE_CIRCLE_LAYER_ID);
// Add the SymbolLayer
SymbolLayer symbolIconLayer = new SymbolLayer(ICON_LAYER_ID, SOURCE_ID);
symbolIconLayer.withProperties(
iconImage(ICON_IMAGE_ID),
iconSize(1.5f),
iconIgnorePlacement(true),
iconAllowOverlap(true)
);
symbolIconLayer.setMinZoom(ZOOM_LEVEL_FOR_SWITCH_FROM_CIRCLE_TO_ICON);
style.addLayer(symbolIconLayer);
Toast.makeText(CircleToIconTransitionActivity.this,
R.string.zoom_map_in_and_out_circle_to_icon_transition, Toast.LENGTH_SHORT).show();
mapboxMap.animateCamera(CameraUpdateFactory
.newCameraPosition(new CameraPosition.Builder()
.zoom(12.5)
.build()), 3000);
}
}
);
}
private Feature[] initFeatureArray() {
return new Feature[] {
Feature.fromGeometry(Point.fromLngLat(
135.516316,
34.681345)),
Feature.fromGeometry(Point.fromLngLat(
135.509537,
34.707929)),
Feature.fromGeometry(Point.fromLngLat(
135.487953,
34.680369)),
Feature.fromGeometry(Point.fromLngLat(
135.479682,
34.698283)),
Feature.fromGeometry(Point.fromLngLat(
135.499368,
34.708894)),
Feature.fromGeometry(Point.fromLngLat(
135.469701,
34.691089)),
Feature.fromGeometry(Point.fromLngLat(
135.471265,
34.672435)),
Feature.fromGeometry(Point.fromLngLat(
135.485418,
34.704285)),
Feature.fromGeometry(Point.fromLngLat(
135.493762,
34.669337)),
Feature.fromGeometry(Point.fromLngLat(
135.509407,
34.696032)),
Feature.fromGeometry(Point.fromLngLat(
135.492719,
34.68424)),
Feature.fromGeometry(Point.fromLngLat(
135.51045,
34.684133)),
Feature.fromGeometry(Point.fromLngLat(
135.500802,
34.700212)),
Feature.fromGeometry(Point.fromLngLat(
135.519576,
34.698712)),
Feature.fromGeometry(Point.fromLngLat(
135.502888,
34.67888)),
Feature.fromGeometry(Point.fromLngLat(
135.518533,
34.67116))
};
}
@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 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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