Android Swipe Refresh Layout ( Android Pull-Swipe Down to Refresh)

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipeToRefresh"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            >
        </ListView>

    </android.support.v4.widget.SwipeRefreshLayout>

</RelativeLayout>

MAinActivity.java

package in.blogspot.kantapp.androidswiperefreshlayoutandroidpull_swipedowntorefresh;

import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Random;

public class MainActivity extends AppCompatActivity {

    ArrayList arrayList = new ArrayList();
    SwipeRefreshLayout mSwipeRefreshLayout;
    ListView mListView;

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

        mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeToRefresh);
        mListView = (ListView) findViewById(R.id.listView);

        mSwipeRefreshLayout.setColorSchemeResources(R.color.colorAccent);

        arrayList.add("First Element");
        arrayList.add("Second Element");
        arrayList.add("Third Element");
        arrayList.add("Fourth Element");
        arrayList.add("Fifth Element");

        ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, arrayList);
        mListView.setAdapter(adapter);

        mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                shuffle();
                mSwipeRefreshLayout.setRefreshing(false);
            }
        });
    }

    public void shuffle(){
        Collections.shuffle(arrayList, new Random(System.currentTimeMillis()));
        ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, arrayList);
        mListView.setAdapter(adapter);
    }
}