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package com.mapbox.mapboxsdk.testapp.activity.feature;
import android.graphics.RectF;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Toast;
import com.google.gson.JsonElement;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.testapp.R;
import com.mapbox.services.commons.geojson.Feature;
import java.util.List;
import java.util.Map;
import timber.log.Timber;
/**
* Test activity showcasing using the query rendered features API to count features in a rectangle.
*/
public class QueryRenderedFeaturesBoxCountActivity extends AppCompatActivity {
public MapView mapView;
private MapboxMap mapboxMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_query_features_box);
final View selectionBox = findViewById(R.id.selection_box);
// Initialize map as normal
mapView = (MapView) findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(mapboxMap -> {
QueryRenderedFeaturesBoxCountActivity.this.mapboxMap = mapboxMap;
selectionBox.setOnClickListener(view -> {
// Query
int top = selectionBox.getTop() - mapView.getTop();
int left = selectionBox.getLeft() - mapView.getLeft();
RectF box = new RectF(left, top, left + selectionBox.getWidth(), top + selectionBox.getHeight());
Timber.i("Querying box %s", box);
List<Feature> features = mapboxMap.queryRenderedFeatures(box);
// Show count
Toast.makeText(
QueryRenderedFeaturesBoxCountActivity.this,
String.format("%s features in box", features.size()),
Toast.LENGTH_SHORT).show();
// Debug output
debugOutput(features);
});
});
}
private void debugOutput(List<Feature> features) {
Timber.i("Got %s features", features.size());
for (Feature feature : features) {
if (feature != null) {
Timber.i("Got feature %s with %s properties and Geometry %s",
feature.getId(),
feature.getProperties() != null ? feature.getProperties().entrySet().size() : "<null>",
feature.getGeometry() != null ? feature.getGeometry().getClass().getSimpleName() : "<null>"
);
if (feature.getProperties() != null) {
for (Map.Entry<String, JsonElement> entry : feature.getProperties().entrySet()) {
Timber.i("Prop %s - %s", entry.getKey(), entry.getValue());
}
}
} else {
Timber.i("Got 0 features");
}
}
}
public MapboxMap getMapboxMap() {
return mapboxMap;
}
@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();
}
}
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