Vẽ một polygon

Vẽ một polygon vector trên bản đồ bằng cách sử dụng Vietbando Android SDK.

Ví dụ này cần có một tập tin thứ 2 là: activity_main.xml 
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;

import com.vietbando.vietbandosdk.annotations.PolygonOptions;
import com.vietbando.vietbandosdk.geometry.LatLng;
import com.vietbando.vietbandosdk.maps.MapView;
import com.vietbando.vietbandosdk.maps.VietbandoMap;
import com.vietbando.vietbandosdk.maps.OnMapReadyCallback;

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

public class MainActivity extends Activity {

    private MapView mapView;

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

        mapView = (MapView) findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(vietbandoMap VietbandoMap) {
                drawPolygon(VietbandoMap);
            }
        });
    }

    private void drawPolygon(VietbandoMap VietbandoMap) {
        List<LatLng> polygon = new ArrayList<>();
        polygon.add(new LatLng(10.7773973, 106.701278));
        polygon.add(new LatLng(10.7753973, 106.700178));
        polygon.add(new LatLng(10.7753973, 106.702378));        
        VietbandoMap.addPolygon(new PolygonOptions()
                .addAll(polygon)
                .fillColor(Color.parseColor("#3bb2d0")));
    }

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

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

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

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

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                xmlns:tools="http://schemas.android.com/tools"
                xmlns:Vietbando="http://schemas.android.com/apk/res-auto"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                tools:context=".MainActivity">

                <com.Vietbando.Vietbandosdk.maps.MapView
                    android:id="@+id/mapView"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    Vietbando:access_token="<your access token here>"
                    Vietbando:style_url="Vietbando://styles/Vietbando/streets-v9"
                    Vietbando:center_latitude="45.520486"
                    Vietbando:center_longitude="-122.673541"
                    Vietbando:zoom="11"/>

</RelativeLayout>
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