Android http connection simple

I am using an library called android volley to establish http connection . I am demonstrating it by using my localhost server.
First you have to create a new android project.then you have to import volley library to the project.
for that just follow Video

https://www.youtube.com/watch?v=7x7h90KAQ5E


Now here is the java code

package com.example.hashimmusthafa.applab;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

public class Web extends AppCompatActivity {
    Button web;
    EditText t1,t2;
    RequestQueue requestQueue;
    Intent intent;
    String insertUrl="http://192.168.137.1:80/php/index.php";
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web);

        getSupportActionBar().hide();

web=(Button)findViewById(R.id.button2);
        t1=(EditText)findViewById(R.id.editText2);
        t2=(EditText)findViewById(R.id.editText3);
        requestQueue= Volley.newRequestQueue(getApplicationContext());
        web.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                StringRequest request = new StringRequest(Request.Method.POST, insertUrl, new Response.Listener<String>() {
                    @Override                    public void onResponse(String response) {

                    }
                }, new Response.ErrorListener() {
                    @Override                    public void onErrorResponse(VolleyError error) {

                    }
                }) {
                    @Override                    protected Map<String, String> getParams() throws AuthFailureError {
                        Map<String, String> parameters = new HashMap<String, String>();
                        parameters.put("t1", t1.getText().toString());
                        parameters.put("t2", t2.getText().toString());

                        return parameters;
                    }
                };
                requestQueue.add(request);


                finish();
            }
        });



    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_web, menu);
        return true;
    }

    @Override    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();

        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

it is the xml code

<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" android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:paddingBottom="@dimen/activity_vertical_margin"    tools:context="com.example.hashimmusthafa.applab.Web"    android:background="#2b2f38">

    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="WEBSITE TO APP"        android:id="@+id/textView4"        android:textColor="#fff"        android:textStyle="bold"        android:textSize="18dp"        android:textIsSelectable="true"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:layout_marginTop="50dp" />

    <EditText        android:layout_width="fill_parent"        android:layout_height="50dp"        android:id="@+id/editText2"        android:background="#fff"        android:layout_centerVertical="true"        android:layout_alignParentStart="true" />

    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Enter App Name"        android:id="@+id/textView5"        android:textColor="#fff"        android:textSize="15dp"        android:layout_above="@+id/editText2"        android:layout_alignParentStart="true" />

    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="SUBMIT"        android:id="@+id/button2"        android:layout_marginTop="66dp"        android:background="#fff"        android:layout_below="@+id/editText2"        android:layout_alignStart="@+id/textView4"        android:layout_alignEnd="@+id/textView4" />

    <EditText        android:layout_width="fill_parent"        android:layout_height="50dp"        android:id="@+id/editText3"        android:background="#ffffff"        android:layout_alignParentStart="true"        android:layout_below="@+id/textView8" />

    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Enter Web URL"        android:id="@+id/textView8"        android:layout_below="@+id/textView4"        android:layout_alignParentStart="true"        android:layout_marginTop="58dp"        android:textSize="15dp"        android:textColor="#ffffff" />
</RelativeLayout>

now we have to create the webapp.
here is the code.create a file index.php and put the codes inside it.

<?php
$t1=$_REQUEST['t1'];
$t2=$_REQUEST['t2'];
$myfile = fopen("appname.doc", "a") or die("Unable to open file!");
fwrite($myfile,$t1."\n");
fclose($myfile);
$myfiles = fopen("website.doc", "a") or die("Unable to open file!");

fwrite($myfiles,$t2."\n");
fclose($myfiles);


?>

it will create two word docs and will add the typed words to the files