Android GPS Thread

package com.example.backgroundgps;

import java.util.Map;

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class GPSActivity extends Activity {
    TextView txt;
    String locationProvider = "";
    Location mLocation;
    Button button;
    private final LocationListener mLocationListener = new LocationListener() {

            @Override
            public void onLocationChanged(Location location) {
                    Log.i("TestGPSOnSecondThread", "onLocationChanged, location = " + location);
            }

            @Override
            public void onProviderDisabled(String provider) {
            }

            @Override
            public void onProviderEnabled(String provider) {
            }

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {
            }

    };

    HandlerThread mThread;
    int clicks=0;
    private LocationManager mLocationManager;


Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            String text = (String)msg.obj;
            txt.setText(text);
            //call setText here
        }
};
@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_gps);
    txt=(TextView)findViewById(R.id.TextView02);
    button=(Button) findViewById(R.id.button1);
    mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        //Toast.makeText(getApplicationContext(),"Running",Toast.LENGTH_SHORT).show();

    button.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            mThread = new HandlerThread("GPS Thread");
            Log.v("baaga",mThread.getState().toString());
            mThread.start();
            new Handler(mThread.getLooper()).post(
                    new Runnable() {
                            @Override
                            public void run() {
                                clicks++;
                                    mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mLocationListener);
                                    Criteria criteria = new Criteria();
                                    criteria.setAccuracy(Criteria.ACCURACY_FINE);

                                    // Select Best Provider-Like Wifi, Network and GPS.
                                    locationProvider = mLocationManager.getBestProvider(criteria, true);


                                    // Save the last known location
                                    mLocation = mLocationManager.getLastKnownLocation(locationProvider);
                                    Message msg = new Message();
                                    String textTochange="";
                                    if (clicks==1){
                                        textTochange =""+ mLocation.getLatitude()+" "+(mLocation.getLongitude()+"baaga"+clicks);
                                    }
                                    else if (clicks==2){
                                        textTochange =""+ mLocation.getLatitude()+" "+mLocation.getLongitude()+"beega"+clicks;
                                    }
                                    else {
                                        textTochange =""+ mLocation.getLatitude()+" "+mLocation.getLongitude()+"booga"+clicks;
                                    }

                                    msg.obj = textTochange;
                                    mHandler.sendMessage(msg);

                                    //txt.setText(""+mLocation.getLatitude()+" "+mLocation.getLongitude());
                            }
                    });

        }
    });
}
    @Override
    protected void onPause() {
            super.onPause();
            //mLocationManager.removeUpdates(mLocationListener);
            //mThread.getLooper().quit();
    }

}