FlickerDemoActivity.java

package mapboxtest.mapboxtest;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import com.mapbox.geojson.Point;
import com.mapbox.geojson.Polygon;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraPosition;
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.FillLayer;
import com.mapbox.mapboxsdk.style.layers.Layer;
import com.mapbox.mapboxsdk.style.layers.LineLayer;
import com.mapbox.mapboxsdk.style.layers.PropertyFactory;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import com.mapbox.mapboxsdk.style.sources.TileSet;
import com.mapbox.mapboxsdk.style.sources.VectorSource;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    MapView mapView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Mapbox.getInstance(this, YOUR_MAPBOX_TOKEN);

        mapView = findViewById(R.id.map_view);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(final MapboxMap map) {
                map.setCameraPosition(new CameraPosition.Builder().target(new LatLng(34.016777, -118.494933)).zoom(13).build());

                addLayers(map);
            }
        });
    }

    private void addLayers(MapboxMap map) {
        GeoJsonSource source = new GeoJsonSource("test-geojson-source");
        List<Point> points = new ArrayList<>();
        points.add(Point.fromLngLat(-118.494933, 34.016777));
        points.add(Point.fromLngLat(-118.474933, 34.016777));
        points.add(Point.fromLngLat(-118.474933, 34.026777));
        points.add(Point.fromLngLat(-118.494933, 34.026777));
        points.add(Point.fromLngLat(-118.494933, 34.016777));

        List<List<Point>> lists = new ArrayList<>();
        lists.add(points);
        source.setGeoJson(Polygon.fromLngLats(lists));
        map.addSource(source);

        Layer newLayer = new FillLayer("test-layer", "test-geojson-source")
                .withProperties(PropertyFactory.fillColor(Color.rgb(255, 0, 0)), PropertyFactory.fillOpacity(.6f));
        map.addLayer(newLayer);
    }

    @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 onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mapView.onSaveInstanceState(outState);
    }
}