diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/ZoomFunctionSymbolLayerActivity.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/ZoomFunctionSymbolLayerActivity.java | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/ZoomFunctionSymbolLayerActivity.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/ZoomFunctionSymbolLayerActivity.java new file mode 100644 index 0000000000..cd741a85b6 --- /dev/null +++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/ZoomFunctionSymbolLayerActivity.java @@ -0,0 +1,171 @@ +package com.mapbox.mapboxsdk.testapp.activity.style; + +import android.graphics.PointF; +import android.os.Bundle; +import android.support.annotation.NonNull; +import android.support.v7.app.AppCompatActivity; + +import com.google.gson.JsonObject; +import com.mapbox.mapboxsdk.geometry.LatLng; +import com.mapbox.mapboxsdk.maps.MapView; +import com.mapbox.mapboxsdk.maps.MapboxMap; +import com.mapbox.mapboxsdk.maps.OnMapReadyCallback; +import com.mapbox.mapboxsdk.style.layers.SymbolLayer; +import com.mapbox.mapboxsdk.style.sources.GeoJsonSource; +import com.mapbox.mapboxsdk.testapp.R; +import com.mapbox.services.commons.geojson.Feature; +import com.mapbox.services.commons.geojson.FeatureCollection; +import com.mapbox.services.commons.geojson.Point; +import com.mapbox.services.commons.models.Position; + +import java.util.List; + +import timber.log.Timber; + +import static com.mapbox.mapboxsdk.style.functions.Function.property; +import static com.mapbox.mapboxsdk.style.functions.Function.zoom; +import static com.mapbox.mapboxsdk.style.functions.stops.Stop.stop; +import static com.mapbox.mapboxsdk.style.functions.stops.Stops.categorical; +import static com.mapbox.mapboxsdk.style.functions.stops.Stops.interval; +import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap; +import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage; +import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconSize; + +/** + * Test activity showcasing changing the icon with a zoom function and adding selection state to a SymbolLayer. + */ +public class ZoomFunctionSymbolLayerActivity extends AppCompatActivity { + + private static final String LAYER_ID = "symbolLayer"; + private static final String SOURCE_ID = "poiSource"; + private static final String BUS_MAKI_ICON_ID = "bus-11"; + private static final String CAFE_MAKI_ICON_ID = "cafe-11"; + private static final String KEY_PROPERTY_SELECTED = "selected"; + private static final float ZOOM_STOP_MIN_VALUE = 7.0f; + private static final float ZOOM_STOP_MAX_VALUE = 12.0f; + + private MapView mapView; + private MapboxMap mapboxMap; + private GeoJsonSource source; + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_zoom_symbol_layer); + + mapView = (MapView) findViewById(R.id.mapView); + mapView.onCreate(savedInstanceState); + mapView.getMapAsync(new OnMapReadyCallback() { + @Override + public void onMapReady(@NonNull final MapboxMap map) { + mapboxMap = map; + updateSource(false); + addLayer(); + addMapClickListener(); + } + }); + } + + private void updateSource(boolean selected) { + FeatureCollection featureCollection = createFeatureCollection(selected); + if (source != null) { + source.setGeoJson(featureCollection); + } else { + source = new GeoJsonSource(SOURCE_ID, featureCollection); + mapboxMap.addSource(source); + } + } + + private FeatureCollection createFeatureCollection(boolean selected) { + Point point = Point.fromCoordinates(Position.fromCoordinates(-74.016181, 40.701745)); + Feature feature = Feature.fromGeometry(point); + JsonObject properties = new JsonObject(); + properties.addProperty(KEY_PROPERTY_SELECTED, selected); + feature.setProperties(properties); + return FeatureCollection.fromFeatures(new Feature[] {feature}); + } + + private void addLayer() { + SymbolLayer layer = new SymbolLayer(LAYER_ID, SOURCE_ID); + layer.setProperties( + iconImage( + zoom( + interval( + stop(ZOOM_STOP_MIN_VALUE, iconImage(BUS_MAKI_ICON_ID)), + stop(ZOOM_STOP_MAX_VALUE, iconImage(CAFE_MAKI_ICON_ID)) + ) + ) + ), + iconSize( + property( + KEY_PROPERTY_SELECTED, + categorical( + stop(true, iconSize(3.0f)), + stop(false, iconSize(1.0f)) + ) + ) + ), + iconAllowOverlap(true) + ); + mapboxMap.addLayer(layer); + } + + private void addMapClickListener() { + mapboxMap.setOnMapClickListener(new MapboxMap.OnMapClickListener() { + @Override + public void onMapClick(@NonNull LatLng point) { + PointF screenPoint = mapboxMap.getProjection().toScreenLocation(point); + List<Feature> featureList = mapboxMap.queryRenderedFeatures(screenPoint, LAYER_ID); + if (!featureList.isEmpty()) { + Feature feature = featureList.get(0); + boolean isSelected = feature.getBooleanProperty(KEY_PROPERTY_SELECTED); + updateSource(!isSelected); + } else { + Timber.e("No features found"); + } + } + }); + } + + @Override + protected void onStart() { + super.onStart(); + mapView.onStart(); + } + + @Override + protected void onResume() { + super.onResume(); + mapView.onResume(); + } + + @Override + protected void onPause() { + super.onPause(); + mapView.onPause(); + } + + @Override + protected void onStop() { + super.onStop(); + mapView.onStop(); + } + + @Override + public void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + mapView.onSaveInstanceState(outState); + } + + @Override + public void onLowMemory() { + super.onLowMemory(); + mapView.onLowMemory(); + } + + @Override + public void onDestroy() { + super.onDestroy(); + mapView.onDestroy(); + } +}
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