Posicao do GPS - Android (http://pt.stackoverflow.com/questions/27121/pegar-posi%C3%A7%C3%A3o-do-celular-gps)

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>  
<manifest  
 xmlns:android="http://schemas.android.com/apk/res/android"  
 package="com.rdc"  
 android:versionCode="1"  
 android:versionName="1.0">  
 <uses-sdk android:minSdkVersion="10" />  
  
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION">  
</uses-permission>  
  
 <application  
  android:icon="@drawable/icon"  
  android:label="@string/app_name">  
  <activity  
   android:name=".GetCurrentLocation"  
   android:label="@string/app_name">  
   <intent-filter>  
   <action android:name="android.intent.action.MAIN" />  
   <category android:name="android.intent.category.LAUNCHER" />  
   </intent-filter>  
  </activity>  
  
 </application>  
</manifest>

CidadePeloGPS.java

    package com.rdc;  
      
    import java.io.IOException;  
    import java.util.List;  
    import java.util.Locale;  
      
    import android.app.Activity;  
    import android.app.AlertDialog;  
    import android.content.ContentResolver;  
    import android.content.Context;  
    import android.content.DialogInterface;  
    import android.content.Intent;  
    import android.content.pm.ActivityInfo;  
    import android.location.Address;  
    import android.location.Geocoder;  
    import android.location.Location;  
    import android.location.LocationListener;  
    import android.location.LocationManager;  
    import android.os.Bundle;  
    import android.provider.Settings;  
    import android.util.Log;  
    import android.view.View;  
    import android.view.View.OnClickListener;  
    import android.widget.Button;  
    import android.widget.EditText;  
    import android.widget.ProgressBar;  
    import android.widget.Toast;  
      
    public class CidadePeloGPS extends Activity   
    implements OnClickListener {  
       
     private LocationManager gerenciadordeLugar=null;  
     private LocationListener lugarListener=null;   
       
     private Button botaoPegaLugar = null;  
     private EditText editarLugar = null;   
     private ProgressBar pb =null;  
       
     private static final String TAG = "Debug";  
     private Boolean flag = false;  
      
     @Override  
     public void onCreate(Bundle instanciaSalva) {  
      super.onCreate(instanciaSalva);  
      setContentView(R.layout.main);  
        
      setRequestedOrientation(ActivityInfo  
      .SCREEN_ORIENTATION_PORTRAIT);  
      
      pb = (ProgressBar) findViewById(R.id.progressBar1);  
      pb.setVisibility(View.INVISIBLE);  
        
      editarLugar = (EditText) findViewById(R.id.editarLugar);   
      
      botaoPegaLugar = (Button) findViewById(R.id.btnLocation);  
      botaoPegaLugar.setOnClickListener(this);  
        
      gerenciadordeLugar = (LocationManager)   
      getSystemService(Context.LOCATION_SERVICE);  
      
     }  
      
     @Override  
     public void onClick(View v) {  
      flag = displayGpsStatus();  
      if (flag) {  
         
       Log.v(TAG, "onClick");    
         
       editarLugar.setText("Por favor, mova o seu aparelho para"+  
       " ver as alteracoes nas coordenadas."+"\nAguarde..");  
         
       pb.setVisibility(View.VISIBLE);  
       lugarListener = new MeuListener();  
      
       gerenciadordeLugar.requestLocationUpdates(LocationManager  
       .GPS_PROVIDER, 5000, 10,lugarListener);  
         
       } else {  
       alertbox("Gps Status!!", "O seu  GPS esta desabilitado");  
      }  
      
     }  
     private Boolean displayGpsStatus() {  
      ContentResolver contentResolver = getBaseContext()  
      .getContentResolver();  
      boolean gpsStatus = Settings.Secure  
      .isLocationProviderEnabled(contentResolver,   
      LocationManager.GPS_PROVIDER);  
      if (gpsStatus) {  
       return true;  
      
      } else {  
       return false;  
      }  
     }  

     protected void alertbox(String title, String msg) {  
      AlertDialog.Builder builder = new AlertDialog.Builder(this);  
      builder.setMessage("O seu  GPS esta desabilitado")  
      .setCancelable(false)  
      .setTitle("** GPS Status **")  
      .setPositiveButton("GPS habilita",  
       new DialogInterface.OnClickListener() {  
       public void onClick(DialogInterface dialog, int id) {  
       Intent meuIntent = new Intent(  
       Settings.ACTION_SECURITY_SETTINGS);  
       startActivity(meuIntent);  
          dialog.cancel();  
       }  
       })  
       .setNegativeButton("Cancelar",  
       new DialogInterface.OnClickListener() {  
       public void onClick(DialogInterface dialog, int id) {  
        dialog.cancel();  
        }  
       });  
      AlertDialog alert = builder.create();  
      alert.show();  
     }  
       
     /*----------Listener para as coordenadas ------------- */  
     private class MeuListener implements LocationListener {  
            @Override  
            public void onLocationChanged(Location loc) {  
                
                editarLugar.setText("");  
                pb.setVisibility(View.INVISIBLE);  
                Toast.makeText(getBaseContext(),"Localizacao mudou : Lat: " +  
       loc.getLatitude()+ " Lng: " + loc.getLongitude(),  
       Toast.LENGTH_SHORT).show();  
                String longitude = "Longitude: " +loc.getLongitude();    
          Log.v(TAG, longitude);  
          String latitude = "Latitude: " +loc.getLatitude();  
          Log.v(TAG, latitude);  
                
        /*---------- cidade a partir das coordenadas ------------- */  
          String nomeCidade=null;                
          Geocoder gcd = new Geocoder(getBaseContext(),   
       Locale.getDefault());               
          List<Address>  enderecos;    
          try {    
          enderecos = gcd.getFromLocation(loc.getLatitude(), loc  
       .getLongitude(), 1);    
          if (enderecos.size() > 0)    
             System.out.println(enderecos.get(0).getLocality());    
             nomeCidade=enderecos.get(0).getLocality();    
            } catch (IOException e) {              
            e.printStackTrace();    
          }   
                
          String s = longitude+"\n"+latitude +  
       "\n\nA Cidade atual eh: "+nomeCidade;  
               editarLugar.setText(s);  
            }  
      
            @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           
            }  
        }  
    }  

main.xml

<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout  
 xmlns:android="http://schemas.android.com/apk/res/android"  
 android:orientation="vertical"  
 android:layout_width="fill_parent"  
 android:layout_height="fill_parent"  
 android:weightSum="1">  
 <TextView  
  android:layout_width="fill_parent"  
  android:layout_height="wrap_content"  
  android:text="Pega a localizacao e nome da Cidade"  
  android:layout_weight="0.20"  
  android:gravity="center"  
  android:textSize="20sp" />  
 <EditText  
  android:layout_width="match_parent"  
  android:layout_height="wrap_content"  
  android:layout_weight="0.33"  
  android:id="@+id/editarLugar"  
  android:editable="false">  
  <requestFocus></requestFocus>  
 </EditText>  
 <LinearLayout  
  android:id="@+id/layButtonH"  
  android:layout_height="wrap_content"  
  android:layout_width="fill_parent"  
  android:gravity="center"  
  android:layout_weight="0.15">  
  <Button  
   android:layout_width="wrap_content"  
   android:layout_height="wrap_content"  
   android:text="Pegar localizacao"  
   android:id="@+id/botaoPegaLugar"></Button>  
 </LinearLayout>  
 <LinearLayout  
  android:id="@+id/layloadingH"  
  android:layout_height="wrap_content"  
  android:layout_weight="0.20"  
  android:layout_width="fill_parent"  
  android:gravity="center">  
  <ProgressBar  
   android:layout_width="wrap_content"  
   android:id="@+id/progressBar1"  
   android:layout_height="wrap_content"></ProgressBar>  
 </LinearLayout>  
</LinearLayout>