Generate random String using org apache commons lang3 RandomStringUtils

This example show how to generate random String using org.apache.commons.lang3.RandomStringUtils.

You have to download Apache Commons Lang, and add the jar to Android Studio Projects libs. Refer to the video.

package com.blogspot.android_er.androidrandomstring;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import org.apache.commons.lang3.RandomStringUtils;

public class MainActivity extends AppCompatActivity {

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

 Button btnGenerate = (Button)findViewById(R.id.gen);
 final TextView textResult = (TextView)findViewById(R.id.result);

 btnGenerate.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 textResult.setText("");
 for(int i=1; i<20; i++){
 String randomString = RandomStringUtils.randomAlphabetic(i) + " ";
 textResult.append(randomString);
 }
 }
 });

 }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 
 
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_paddingBottom="16dp"
 android_orientation="vertical"
 tools_context="com.blogspot.android_er.androidrandomstring.MainActivity">

 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_layout_gravity="center_horizontal"
 android_autoLink="web"
 android_text="http://android-er.blogspot.com/"
 android_textStyle="bold" />

 <Button
 android_id="@+id/gen"
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_text="Generate Random Strings"/>

 <TextView
 android_id="@+id/result"
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_typeface="monospace"
 android_textSize="22sp"/>
</LinearLayout>

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