Problem in Obtaining Location using GPS

[Sunni srivastav]

I want to find the location of an android phone using GPS.Currently I am developing using Eclipse IDE and its android plugin.
Came across code to do this GPS code

But when I am trying to execute it does not display the longitude and latitude even after setting it through Geo command as well through DDMS

The Code is as below:

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class ShowLocationActivity extends Activity implements LocationListener {
	private TextView latitudeField;
	private TextView longitudeField;
	private LocationManager locationManager;
	private String provider;

	
/** Called when the activity is first created. */

	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		latitudeField = (TextView) findViewById(R.id.TextView02);
		longitudeField = (TextView) findViewById(R.id.TextView04);

		// Get the location manager
		locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
		// Define the criteria how to select the location provider -> use
		// default
		Criteria criteria = new Criteria();
	
		System.out.println("\n\nlocationManager+++++++++++++++++++++++++"+locationManager);
		provider = locationManager.getBestProvider(criteria, false);
		Location location = locationManager.getLastKnownLocation(provider);

		// Initialize the location fields
		if (location != null) {
			System.out.println("Provider " + provider + " has been selected.");
			int lat = (int) (location.getLatitude());
			int lng = (int) (location.getLongitude());
			latitudeField.setText(String.valueOf(lat));
			longitudeField.setText(String.valueOf(lng));
		} else {
			latitudeField.setText("Provider not available");
			longitudeField.setText("Provider not available");
		}
	}

	/* Request updates at startup */
	@Override
	protected void onResume() {
		super.onResume();
		locationManager.requestLocationUpdates(provider, 400, 1, this);
	}

	/* Remove the locationlistener updates when Activity is paused */
	@Override
	protected void onPause() {
		super.onPause();
		locationManager.removeUpdates(this);
	}

	public void onLocationChanged(Location location) {
		int lat = (int) (location.getLatitude());
		int lng = (int) (location.getLongitude());
		latitudeField.setText(String.valueOf(lat));
		longitudeField.setText(String.valueOf(lng));
	}

	public void onStatusChanged(String provider, int status, Bundle extras) {

	}

	public void onProviderEnabled(String provider) {
		Toast.makeText(this, "Enabled new provider " + provider,
				Toast.LENGTH_SHORT).show();

	}

	public void onProviderDisabled(String provider) {
		Toast.makeText(this, "Disabled provider " + provider,
				Toast.LENGTH_SHORT).show();
	}
}

On the emulator, it prints Provider not available which is I guess cause
here location is null...

// Initialize the location fields
		if (location != null) {
			System.out.println("Provider " + provider + " has been selected.");
			int lat = (int) (location.getLatitude());
			int lng = (int) (location.getLongitude());
			latitudeField.setText(String.valueOf(lat));
			longitudeField.setText(String.valueOf(lng));
		} else {
			latitudeField.setText("Provider not available");
			longitudeField.setText("Provider not available");
		}

Please help in fixing this...

[Peter Johnson]

On the emulator, it prints Provider not available

The emulator doesn't have GPS. You have to run the code on an actual device that has GPS capability.