loc at android v2

gistfile1.java

/**
 * @author Stephen Krol (mlea)
 */
package org.mlea;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.GpsSatellite;
import android.location.GpsStatus;
import android.location.Location;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.text.format.Time;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity2 extends Activity {
	private String provider;
	private int choice = -1;
	private Location lastLocation;
	private LocationManager mLocationManager;
	private TextView labelView;	
	private TextView locateView;
	private Button showButton;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main2);
		labelView = (TextView) findViewById(R.id.label);
		locateView = (TextView) findViewById(R.id.label2);
		showButton = (Button) findViewById(R.id.show_button);
		
		mLocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
		provider = null;		
		
		showButton.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				
				Intent i = new Intent(Intent.ACTION_VIEW,
						Uri.parse("geo:"+lastLocation.getLatitude()+
								  ","+lastLocation.getLongitude())
						);
				startActivity(i);
			}
		});
	}

	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		boolean result = super.onCreateOptionsMenu(menu);
		menu.add("Change Provider");
		menu.add("GPS Status");
		menu.add("About");

		return result;
	}


	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		boolean result = super.onOptionsItemSelected(item);
		CharSequence itemTitle = item.getTitle();
		AlertDialog.Builder builder = new AlertDialog.Builder(this);

		final String[] providersArray = 
			mLocationManager.getAllProviders().toArray(new String[]{});

		if(itemTitle.equals("Change Provider")){
			builder.setTitle("Select a Location Provider");
			builder.setSingleChoiceItems(
					providersArray, choice,
					new DialogInterface.OnClickListener() {
						@Override
						public void onClick(DialogInterface dialog, int which) {
							choice = which;
							provider = providersArray[which];
							update();
						}
					});

		}else if(itemTitle.equals("About")){
			builder.setTitle("About...");
			builder.setMessage("Proyecto MLEA, Test para GPS"
					+"\n mlea.wikispot.org");
		}else if(itemTitle.equals("GPS Status")){
			GpsStatus status = mLocationManager.getGpsStatus(null);

			StringBuilder output = new StringBuilder();
			output.append("Max numbre of satellites : "+status.getMaxSatellites()+"\n");
			output.append("Satelites list:\n ");
			for(GpsSatellite sat:status.getSatellites()){
				output.append(sat.toString());
			}
			builder.setMessage(output.toString());
		}
		AlertDialog options = builder.create();
		options.show();
		return result;
	}
	
	
	private void update() {
		if(!mLocationManager.isProviderEnabled(provider)){
			Toast.makeText(this,
					"Sorry this Provider :"+provider+" .\n"
					+"is not Enable =("
					, 2000).show();
			labelView.setText("Please select another Provider");
			showButton.setVisibility(Button.INVISIBLE);
			choice = -1;
			return;
		}
		showButton.setVisibility(Button.VISIBLE);
		labelView.setText("The provider : "+provider+" is Selected");
		lastLocation = mLocationManager.getLastKnownLocation(provider);
		locateView.setText(formatOut(lastLocation));
		
	}
	
	
	private String formatOut(Location location){
		StringBuilder out = new StringBuilder();
		Time time = new Time();
		time.set(location.getTime());
		
		out.append("Accurancy : "+location.getAccuracy()+"\n");
		out.append("Latitude  : "+location.getLatitude()+"\n");
		out.append("Longitude : "+location.getLongitude()+"\n");
		out.append("Time      : "+time.format3339(false)+"\n");
		return out.toString();
				
	}
}