HelloAndroidGpsActivity.java

package com.hrupin;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class HelloAndroidGpsActivity extends Activity {

	private EditText editTextShowLocation;
	private Button buttonGetLocation;

	private LocationManager locManager;
	private LocationListener locListener;
	private Location mobileLocation;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		editTextShowLocation = (EditText) findViewById(R.id.editTextShowLocation);

		buttonGetLocation = (Button) findViewById(R.id.buttonGetLocation);
		buttonGetLocation.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				buttonGetLocationClick();
			}
		});
	}
	
	/** Gets the current location and update the mobileLocation variable*/
	private void getCurrentLocation() {
		locManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
		locListener = new LocationListener() {
			@Override
			public void onStatusChanged(String provider, int status,
					Bundle extras) {
				// TODO Auto-generated method stub
			}

			@Override
			public void onProviderEnabled(String provider) {
				// TODO Auto-generated method stub
			}

			@Override
			public void onProviderDisabled(String provider) {
				// TODO Auto-generated method stub
			}

			@Override
			public void onLocationChanged(Location location) {
				// TODO Auto-generated method stub
				mobileLocation = location;
			}
		};
		locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);
	}

	private void buttonGetLocationClick() {
		getCurrentLocation(); // gets the current location and update mobileLocation variable
		
		if (mobileLocation != null) {
			locManager.removeUpdates(locListener); // This needs to stop getting the location data and save the battery power.
			
			String londitude = "Londitude: " + mobileLocation.getLongitude();
			String latitude = "Latitude: " + mobileLocation.getLatitude();
			String altitiude = "Altitiude: " + mobileLocation.getAltitude();
			String accuracy = "Accuracy: " + mobileLocation.getAccuracy();
			String time = "Time: " + mobileLocation.getTime();

			editTextShowLocation.setText(londitude + "\n" + latitude + "\n"
					+ altitiude + "\n" + accuracy + "\n" + time);
		} else {
			editTextShowLocation.setText("Sorry, location is not determined");
		}
	}

}