alert dialoge disappears in android after next page call

public void OnClickNearMe(View view) {
    LocationManager locManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    if (!locManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){   
        createGpsDisabledAlert();   
    } else {
        getLocation();
    }
}

private void getLocation() {
    Location locationResult = null;
    MyLocation myLocation = new MyLocation();
    boolean locationEnabled = myLocation.getLocation(this, locationResult);

    if (locationEnabled == true) {
        locationResult = myLocation.getLocationResult();
        showResultsScreen(locationResult);
    } else {
        Toast.makeText(this, R.string.noLoc, Toast.LENGTH_LONG).show();
    }
}

private void createGpsDisabledAlert(){   
    AlertDialog.Builder builder = new AlertDialog.Builder(this);   
    builder.setMessage("Your GPS is disabled! Would you like to enable it?")   
         .setCancelable(false)   
        .setPositiveButton("Enable GPS",   
             new DialogInterface.OnClickListener(){   
              public void onClick(DialogInterface dialog, int id){
                   showGpsOptions(); 
                   getLocation();
              }   
         });   
         builder.setNegativeButton("Do nothing",   
              new DialogInterface.OnClickListener(){   
              public void onClick(DialogInterface dialog, int id){   
                   dialog.cancel(); 
              }   
         });   
    AlertDialog alert = builder.create();
    alert.show();
    }  

    private void showGpsOptions(){   
            Intent gpsOptionsIntent = new Intent(   
                    android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);   
           startActivity(gpsOptionsIntent);   
    }  

    private void showResultsScreen(Location locationResult){
         Intent resultsIntent = new Intent(this, ResultScreenList.class); 
           startActivity(resultsIntent);
    }
}