Html-encode string using TextUtils.htmlEncode()

TextUtils.htmlEncode()

package com.example.androidtextutils;

import android.os.Bundle;
import android.app.Activity;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

 EditText textSrc;
 TextView textDest;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  textSrc = (EditText)findViewById(R.id.textsrc);
  textDest = (TextView)findViewById(R.id.textdest);
  Button buttonConvert = (Button)findViewById(R.id.convert);
  buttonConvert.setOnClickListener(buttonConvertOnClickListener);
 }
 
 View.OnClickListener buttonConvertOnClickListener =
  new View.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    String src = (String) textSrc.getText().toString();
    String dest = TextUtils.htmlEncode(src);
    textDest.setText(dest);
   }};
 

}

<LinearLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="android-coding.blogspot.com" />

    <EditText
        android:id="@+id/textsrc"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <Button 
        android:id="@+id/convert"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Html-encode the string" />
    <TextView
        android:id="@+id/textdest"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>