Hi from the title itself, please see below the specific requirements
of the android app that i'm preparing:
GPS android app which runs on the background checking its position
(LAT and LONG)
App will be used in a car, once the car enters a specified 1 km road
(almost straight 4 lane road or freeway), it will automatically send
its LAT, LONG and timestamp only to a server via 3G/HSPDA every
second.
Once it exit the specified 1 km road the app automatically stop
sending coordinates and timestamp to server.
I'm just starting to appreciate android programming and i think i was
able to find the code for the 1st requirement already using the one
below. For the 2nd and 3rd requirement i was reading about proximity
but it's concerned only on the distance from a certain point (radius)
and not on a rectangular area. Please help on the next coding step and
decisions that i will do and please also post some links about the
options so that i can study them since i'm just a new learner. My
gratitude.
import android.os.Bundle;
import android.widget.Toast;
// request location updates method
public class GpsActivity extends Activity {
private LocationManager lm;
private LocationListener locationListener;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
locationListener = new MyLocationListener();
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
locationListener);
//OPTIONAL
//Criteria criteria = new Criteria();
//criteria.setAccuracy(Criteria.ACCURACY_FINE);
//criteria.setAltitudeRequired(false);
//criteria.setBearingRequired(false);
//criteria.setCostAllowed(true);
//criteria.setPowerRequirement(Criteria.POWER_LOW);
//String provider = locationManager.getBestProvider(criteria, true);
}
private class MyLocationListener implements LocationListener{
@Override
public void onLocationChanged(Location location) {
if (location != null){
Toast.makeText(getBaseContext(), "Location changed : Lat:
" + location.getLatitude()+
" Long: " + location.getLongitude(),
Toast.LENGTH_SHORT).show();
}
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle
extras) {
// TODO Auto-generated method stub
}
}
}
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