Android and Asynchronous Http Client - com.loopj : (HTTP LIB:Library)

package com.myapp;

import android.os.Bundle;

import java.io.UnsupportedEncodingException;

import com.loopj.android.http.*;

import android.app.Activity;
import android.widget.TextView;
import cz.msebera.android.httpclient.Header;

public class MainActivity extends Activity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

       
		final TextView txtResult = (TextView) findViewById(R.id.txtResult);
	
		AsyncHttpClient client = new AsyncHttpClient();
		client.get("https://www.thaicreate.com/android/getString.php", new AsyncHttpResponseHandler() {

		    @Override
		    public void onStart() {
		        // called before request is started
		    }

		    @Override
		    public void onSuccess(int statusCode, Header[] headers, byte[] response) {
		        // called when response HTTP status is "200 OK"
		    	String result = null;
				try {
					result = new String(response, "UTF-8");
				} catch (UnsupportedEncodingException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
		    	txtResult.setText(result);
		    }

		    @Override
		    public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e) {
		        // called when response HTTP status is "4XX" (eg. 401, 403, 404)
		    }

		    @Override
		    public void onRetry(int retryNo) {
		        // called when request is retried
			}
		});
		
		
	}

}

AsyncHttpClient client = new AsyncHttpClient();
RequestParams params = new RequestParams();
params.put("key", "value");
params.put("more", "data");
client.post("https://www.google.com", params, new AsyncHttpResponseHandler() {

    @Override
    public void onStart() {
        // called before request is started
    }

    @Override
    public void onSuccess(int statusCode, Header[] headers, byte[] response) {
        // called when response HTTP status is "200 OK"
    }

    @Override
    public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e) {
        // called when response HTTP status is "4XX" (eg. 401, 403, 404)
    }

    @Override
    public void onRetry(int retryNo) {
        // called when request is retried
	}
});

<?php
	echo "Sawatdee : ".$_POST["sName"]." ".$_POST["sLastName"];
?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/txtResult"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="107dp"
        android:text="Result" />

</RelativeLayout>