diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java deleted file mode 100644 index cb2701d436..0000000000 --- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/style/GeoJsonClusteringActivity.java +++ /dev/null @@ -1,281 +0,0 @@ -package com.mapbox.mapboxsdk.testapp.activity.style; - -import android.graphics.Color; -import android.graphics.Point; -import android.graphics.PointF; -import android.os.Bundle; -import android.support.v4.content.res.ResourcesCompat; -import android.support.v7.app.AppCompatActivity; -import android.view.MenuItem; -import android.widget.Toast; -import com.mapbox.geojson.Feature; -import com.mapbox.geojson.FeatureCollection; -import com.mapbox.mapboxsdk.camera.CameraUpdateFactory; -import com.mapbox.mapboxsdk.geometry.LatLng; -import com.mapbox.mapboxsdk.maps.MapView; -import com.mapbox.mapboxsdk.maps.MapboxMap; -import com.mapbox.mapboxsdk.maps.Style; -import com.mapbox.mapboxsdk.style.expressions.Expression; -import com.mapbox.mapboxsdk.style.layers.CircleLayer; -import com.mapbox.mapboxsdk.style.layers.SymbolLayer; -import com.mapbox.mapboxsdk.style.sources.GeoJsonOptions; -import com.mapbox.mapboxsdk.style.sources.GeoJsonSource; -import com.mapbox.mapboxsdk.testapp.R; -import com.mapbox.mapboxsdk.utils.BitmapUtils; -import timber.log.Timber; - -import java.net.URI; -import java.net.URISyntaxException; -import java.util.List; -import java.util.Objects; - -import static com.mapbox.mapboxsdk.style.expressions.Expression.all; -import static com.mapbox.mapboxsdk.style.expressions.Expression.accumulated; -import static com.mapbox.mapboxsdk.style.expressions.Expression.concat; -import static com.mapbox.mapboxsdk.style.expressions.Expression.division; -import static com.mapbox.mapboxsdk.style.expressions.Expression.exponential; -import static com.mapbox.mapboxsdk.style.expressions.Expression.get; -import static com.mapbox.mapboxsdk.style.expressions.Expression.gt; -import static com.mapbox.mapboxsdk.style.expressions.Expression.gte; -import static com.mapbox.mapboxsdk.style.expressions.Expression.has; -import static com.mapbox.mapboxsdk.style.expressions.Expression.interpolate; -import static com.mapbox.mapboxsdk.style.expressions.Expression.literal; -import static com.mapbox.mapboxsdk.style.expressions.Expression.lt; -import static com.mapbox.mapboxsdk.style.expressions.Expression.max; -import static com.mapbox.mapboxsdk.style.expressions.Expression.neq; -import static com.mapbox.mapboxsdk.style.expressions.Expression.rgb; -import static com.mapbox.mapboxsdk.style.expressions.Expression.stop; -import static com.mapbox.mapboxsdk.style.expressions.Expression.toNumber; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleColor; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.circleRadius; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconColor; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconSize; -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.textIgnorePlacement; -import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.textSize; - -/** - * Test activity showcasing using a geojson source and visualise that source as a cluster by using filters. - */ -public class GeoJsonClusteringActivity extends AppCompatActivity { - - private static final double CAMERA_ZOOM_DELTA = 0.01; - private MapView mapView; - private MapboxMap mapboxMap; - - private GeoJsonSource clusterSource; - private int clickOptionCounter; - - @Override - protected void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - setContentView(R.layout.activity_geojson_clustering); - - // Initialize map as normal - mapView = findViewById(R.id.mapView); - // noinspection ConstantConditions - mapView.onCreate(savedInstanceState); - - mapView.getMapAsync(map -> { - mapboxMap = map; - mapboxMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(37.7749, 122.4194), 0)); - - final int[][] clusterLayers = new int[][] { - new int[] {150, ResourcesCompat.getColor(getResources(), R.color.redAccent, getTheme())}, - new int[] {20, ResourcesCompat.getColor(getResources(), R.color.greenAccent, getTheme())}, - new int[] {0, ResourcesCompat.getColor(getResources(), R.color.blueAccent, getTheme())} - }; - - try { - mapboxMap.setStyle(new Style.Builder() - .fromUri(Style.LIGHT) - .withSource(clusterSource = createClusterSource()) - .withLayer(createSymbolLayer()) - .withLayer(createClusterLevelLayer(0, clusterLayers)) - .withLayer(createClusterLevelLayer(1, clusterLayers)) - .withLayer(createClusterLevelLayer(2, clusterLayers)) - .withLayer(createClusterTextLayer()) - .withImage("icon-id", Objects.requireNonNull( - BitmapUtils.getBitmapFromDrawable(getResources().getDrawable(R.drawable.ic_hearing_black_24dp))), true - ) - ); - } catch (URISyntaxException exception) { - Timber.e(exception); - } - - mapboxMap.addOnMapClickListener(latLng -> { - PointF point = mapboxMap.getProjection().toScreenLocation(latLng); - List<Feature> features = mapboxMap.queryRenderedFeatures(point, "cluster-0", "cluster-1", "cluster-2"); - if (!features.isEmpty()) { - onClusterClick(features.get(0), new Point((int) point.x, (int) point.y)); - } - return true; - }); - }); - - findViewById(R.id.fab).setOnClickListener(v -> { - updateClickOptionCounter(); - notifyClickOptionUpdate(); - }); - } - - private void onClusterClick(Feature cluster, Point clickPoint) { - if (clickOptionCounter == 0) { - double nextZoomLevel = clusterSource.getClusterExpansionZoom(cluster); - double zoomDelta = nextZoomLevel - mapboxMap.getCameraPosition().zoom; - mapboxMap.animateCamera(CameraUpdateFactory.zoomBy(zoomDelta + CAMERA_ZOOM_DELTA, clickPoint)); - Toast.makeText(this, "Zooming to " + nextZoomLevel, Toast.LENGTH_SHORT).show(); - } else if (clickOptionCounter == 1) { - FeatureCollection collection = clusterSource.getClusterChildren(cluster); - Toast.makeText(this, "Children: " + collection.toJson(), Toast.LENGTH_SHORT).show(); - } else { - FeatureCollection collection = clusterSource.getClusterLeaves(cluster, 2, 1); - Toast.makeText(this, "Leaves: " + collection.toJson(), Toast.LENGTH_SHORT).show(); - } - } - - private GeoJsonSource createClusterSource() throws URISyntaxException { - return new GeoJsonSource("earthquakes", new URI("asset://earthquakes.geojson"), new GeoJsonOptions() - .withCluster(true) - .withClusterMaxZoom(14) - .withClusterRadius(50) - .withClusterProperty("max", max(accumulated(), get("max")), get("mag")) - .withClusterProperty("sum", literal("+"), get("mag")) - .withClusterProperty("felt", literal("any"), neq(get("felt"), literal("null"))) - ); - } - - private SymbolLayer createSymbolLayer() { - return new SymbolLayer("unclustered-points", "earthquakes") - .withProperties( - iconImage("icon-id"), - iconSize( - division( - get("mag"), literal(4.0f) - ) - ), - iconColor( - interpolate(exponential(1), get("mag"), - stop(2.0, rgb(0, 255, 0)), - stop(4.5, rgb(0, 0, 255)), - stop(7.0, rgb(255, 0, 0)) - ) - ) - ) - .withFilter(has("mag")); - } - - private CircleLayer createClusterLevelLayer(int level, int[][] layerColors) { - CircleLayer circles = new CircleLayer("cluster-" + level, "earthquakes"); - circles.setProperties( - circleColor(layerColors[level][1]), - circleRadius(18f) - ); - - Expression pointCount = toNumber(get("point_count")); - circles.setFilter( - level == 0 - ? all(has("point_count"), - gte(pointCount, literal(layerColors[level][0])) - ) : all(has("point_count"), - gt(pointCount, literal(layerColors[level][0])), - lt(pointCount, literal(layerColors[level - 1][0])) - ) - ); - return circles; - } - - private SymbolLayer createClusterTextLayer() { - return new SymbolLayer("property", "earthquakes") - .withProperties( - textField(concat(get("point_count"), literal(", "), get("max"))), - textSize(12f), - textColor(Color.WHITE), - textIgnorePlacement(true), - textAllowOverlap(true) - ); - } - - @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 - protected void onSaveInstanceState(Bundle outState) { - super.onSaveInstanceState(outState); - mapView.onSaveInstanceState(outState); - } - - @Override - protected void onDestroy() { - super.onDestroy(); - mapView.onDestroy(); - } - - @Override - public void onLowMemory() { - super.onLowMemory(); - mapView.onLowMemory(); - } - - @Override - public boolean onOptionsItemSelected(MenuItem item) { - switch (item.getItemId()) { - case android.R.id.home: - onBackPressed(); - return true; - default: - return super.onOptionsItemSelected(item); - } - } - - private void updateClickOptionCounter() { - if (clickOptionCounter == 2) { - clickOptionCounter = 0; - } else { - clickOptionCounter++; - } - } - - private void notifyClickOptionUpdate() { - if (clickOptionCounter == 0) { - Toast.makeText( - GeoJsonClusteringActivity.this, - "Clicking a cluster will zoom to the level where it dissolves", - Toast.LENGTH_SHORT).show(); - } else if (clickOptionCounter == 1) { - Toast.makeText( - GeoJsonClusteringActivity.this, - "Clicking a cluster will show the details of the cluster children", - Toast.LENGTH_SHORT).show(); - } else { - Toast.makeText( - GeoJsonClusteringActivity.this, - "Clicking a cluster will show the details of the cluster leaves with an offset and limit", - Toast.LENGTH_SHORT).show(); - } - } -} |