Vẽ đường nối giữa hai điểm - Googlemap api v2 - Android - Draw route map between two geopoints

Nguồn: http://asmncl.blogspot.in/2012/04/android-draw-route-map-between-two.html

Code:
Using V1:
https://github.com/asmncl/AndroidSampleProjects/tree/master/DrawRoutePath

Using V2:
https://github.com/asmncl/AndroidSampleProjects/tree/master/DrawRouteV2

Lấy vị trí thông qua GPS trong android - How to get location in android by gps

Để lấy được vị trí thông qua gps, chúng ta cần import:

import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;

và class cần implements LocationListener

Sau đó sử dụng hàm sau để lấy vị trí:

public LatLng getLocation() {
// Get the location manager
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Criteria criteria = new Criteria();
String bestProvider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(bestProvider);
Double lat, lon;
try {
lat = location.getLatitude();
lon = location.getLongitude();
return new LatLng(lat, lon);
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
}

--Tuấn Vũ--