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

Style with missing icon

activity_styles_missing_icon
<?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=".examples.styles.MissingIconActivity">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
mapbox:mapbox_cameraTargetLat="39.6226149"
mapbox:mapbox_cameraTargetLng="-8.4155273"
mapbox:mapbox_cameraZoom="6"/>
</FrameLayout>
MissingIconActivity.java
package com.mapbox.mapboxandroiddemo.examples.styles;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
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.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.SymbolLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import com.mapbox.mapboxsdk.utils.BitmapUtils;
import static com.mapbox.mapboxsdk.style.expressions.Expression.get;
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.textAllowOverlap;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textField;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textIgnorePlacement;
import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textOffset;
/**
* Use the {@link MapView#addOnStyleImageMissingListener(MapView.OnStyleImageMissingListener)}
* to handle the situation where a SymbolLayer tries using a missing image as an icon. If an icon-image
* cannot be found in a map style, a custom image can be provided to the map via
* the listener.
*/
public class MissingIconActivity extends AppCompatActivity {
private static final String ICON_SOURCE_ID = "ICON_SOURCE_ID";
private static final String ICON_LAYER_ID = "ICON_LAYER_ID";
private static final String PROFILE_NAME = "PROFILE_NAME";
private static final String CARLOS = "Carlos";
private static final String ANTONY = "Antony";
private static final String MARIA = "Maria";
private static final String LUCIANA = "Luciana";
private MapView mapView;
private MapboxMap mapboxMap;
@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_styles_missing_icon);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(@NonNull final MapboxMap mapboxMap) {
// Add Features which represent the location of each profile photo SymbolLayer icon
Feature carlosFeature = Feature.fromGeometry(Point.fromLngLat(-7.9760742,
41.2778064));
carlosFeature.addStringProperty(PROFILE_NAME, CARLOS);
Feature antonyFeature = Feature.fromGeometry(Point.fromLngLat(-8.0639648,
37.5445773));
antonyFeature.addStringProperty(PROFILE_NAME, ANTONY);
Feature mariaFeature = Feature.fromGeometry(Point.fromLngLat(-9.1845703,
38.9764924));
mariaFeature.addStringProperty(PROFILE_NAME, MARIA);
Feature lucianaFeature = Feature.fromGeometry(Point.fromLngLat(-7.5146484,
40.2459915));
lucianaFeature.addStringProperty(PROFILE_NAME, LUCIANA);
// Use a URL to build and add a Style object to the map. Then add a source to the Style.
mapboxMap.setStyle(
new Style.Builder().fromUri(Style.LIGHT)
.withSource(new GeoJsonSource(ICON_SOURCE_ID,
FeatureCollection.fromFeatures(new Feature[] {
carlosFeature,
antonyFeature,
mariaFeature,
lucianaFeature}))),
new Style.OnStyleLoaded() {
@Override
public void onStyleLoaded(@NonNull Style style) {
MissingIconActivity.this.mapboxMap = mapboxMap;
// Add a SymbolLayer to the style. iconImage is set to a value that will
// be used later in the addOnStyleImageMissingListener below
style.addLayer(new SymbolLayer(ICON_LAYER_ID, ICON_SOURCE_ID).withProperties(
iconImage(get(PROFILE_NAME)),
iconIgnorePlacement(true),
iconAllowOverlap(true),
textField(get(PROFILE_NAME)),
textIgnorePlacement(true),
textAllowOverlap(true),
textOffset(new Float[] {0f, 2f})
));
}
});
}
});
// Use the listener to match the id with the appropriate person. The correct profile photo is
// given to the map during "runtime".
mapView.addOnStyleImageMissingListener(new MapView.OnStyleImageMissingListener() {
@Override
public void onStyleImageMissing(@NonNull String id) {
switch (id) {
case CARLOS:
addImage(id, R.drawable.carlos);
break;
case ANTONY:
addImage(id, R.drawable.antony);
break;
case MARIA:
addImage(id, R.drawable.maria);
break;
case LUCIANA:
addImage(id, R.drawable.luciana);
break;
default:
addImage(id, R.drawable.carlos);
break;
}
}
});
}
private void addImage(String id, int drawableImage) {
Style style = mapboxMap.getStyle();
if (style != null) {
style.addImageAsync(id, BitmapUtils.getBitmapFromDrawable(
getResources().getDrawable(drawableImage)));
}
}
// 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);
}
}
Was this page helpful?