I got the GPS_Location:
double lo=gps_loc.getLongitude();
double la=gps_loc.getLatitude();
I got the Horizontal_Accuracy:
int horiAcc=(int)(gps_loc.getAccuracy());
I got the HDOP:
int hd= (int) (horiAcc/5);
But I can't got the number of satellites.
How can I get the number of satellites have been used in my GPS localisation?
Look at the GpsStatus Class it has a method called getMaxSatellites()
if you need further looking into the GPS Satellite Data you can iterate over the List of Satellites with getSatellites()
see: http://developer.android.com/reference/android/location/GpsStatus.html#getMaxSatellites%28%29