Setting GPS Android

public class Menuutama extends Activity {

    //------------ GPS --------------------------------------------------------- //      

       String myLati = "-6.353370";
       String myLongi = "106.832349";
       String myPosisi = "Lp2m aray Jkt";
    //------------ GPS Defaulde ------------------------------------------------ //

    //------------Button GPS --------------------------------------------------- //

ImageView btnAnggota = (ImageView) findViewById(R.id.btnAnggota);
btnAnggota.setOnClickListener(new View.OnClickListener() {
    @Override    public void onClick(View arg0) {
        Intent i = new Intent(getApplicationContext(), List_anggota.class);
        i.putExtra("pk", myLati);
        i.putExtra("pk", myLongi);
        i.putExtra("pk", myPosisi);
        startActivityForResult(i, 100); }});
   //------------Button GPS --------------------------------------------------- //
Dibawah : 
        ImageView btnKeluar = (ImageView) findViewById(R.id.btnKeluar);
        btnKeluar.setOnClickListener(new View.OnClickListener() {
        @Override public void onClick(View arg0) { keluarYN(); } });
   
   //------------ GPS --------------------------------------------------------- //  
    LocationManager locationManager;
    String context = Context.LOCATION_SERVICE;
    locationManager = (LocationManager) getSystemService(context);

    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);

    if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling        //    Activity#requestPermissions        // here to request the missing permissions, and then overriding        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,        //                                          int[] grantResults)        // to handle the case where the user grants the permission. See the documentation        // for Activity#requestPermissions for more details.        return;
    }
    Location location = locationManager.getLastKnownLocation(provider);
    updateWithNewLocation(location);

    locationManager.requestLocationUpdates(provider, 2000, 10,
    locationListener);
  }

  private final LocationListener locationListener = new LocationListener() {
    public void onLocationChanged(Location location) {
      updateWithNewLocation(location);
    }

    public void onProviderDisabled(String provider){
      updateWithNewLocation(null);
    }

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

  private void updateWithNewLocation(Location location) {
     double latitude=Double.parseDouble(myLati);
    double longitude=Double.parseDouble(myLongi);
    String addressString = "No address found";

    if (location != null) {
       latitude = location.getLatitude();
       longitude = location.getLongitude();
      Geocoder gc = new Geocoder(this, Locale.getDefault());
      try {
        List<Address> addresses = gc.getFromLocation(latitude, longitude, 1);
        StringBuilder sb = new StringBuilder();
        if (((List) addresses).size() > 0) {
          Address address = addresses.get(0);

          for (int i = 0; i < address.getMaxAddressLineIndex(); i++)
            sb.append(address.getAddressLine(i)).append("\n");
            sb.append(address.getLocality()).append("\n");
            sb.append(address.getPostalCode()).append("\n");
            sb.append(address.getCountryName());
        }
        addressString = sb.toString();
      } catch (IOException e) {}
    } else {
       myLati="-6.353370";
      myLongi="106.832349";
      addressString="Lp2m Aray Jkt";
}

myPosisi=addressString;
myLati=String.valueOf(latitude);
myLongi=String.valueOf(longitude);


TextView txtMarquee=(TextView)findViewById(R.id.txtMarquee);
txtMarquee.setSelected(true);
String kata="Posisi Anda :"+myLati+"/"+myLongi+" "+myPosisi+"#";
String kalimat=String.format("%1$s", TextUtils.htmlEncode(kata));
txtMarquee.setText(Html.fromHtml(kalimat+kalimat+kalimat));
}
//------------ GPS -------------------------------------------------------------- //

Diatas ===
public void keluar(){