Timer.java

package com.example.hp.animationonrecyclerview;

import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

public class MainActivity extends AppCompatActivity {
    private LinearLayoutManager linearLayoutManager;
    RecyclerView rView;
    List<RecyclerViewItem> allItems;
    List<RecyclerViewItem> testAllItems;
    RecylerViewAdapterDemo recylerViewAdapterDemo;
    Handler handler;
     String title[] = {"Shaon", "Ashiq", "Najmul", "Nadim", "Jafor"};
     String subTitle[] = {"ShaonSubTitle", "AshiqSubTitle",
            "NajmulSubTitle", "NadimSubTitle", "JaforSubTitle"};
    Timer timer;
    TimerTask timerTask;

    int n = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        handler = new Handler();



    }

    private List<RecyclerViewItem> getItemList() {

        List<RecyclerViewItem> allItems = new ArrayList<RecyclerViewItem😠);

        String title[] = {"Shaon", "Ashiq", "Najmul", "Nadim", "Jafor"};
        String subTitle[] = {"ShaonSubTitle", "AshiqSubTitle",
                "NajmulSubTitle", "NadimSubTitle", "JaforSubTitle"};
        int image[] = {R.mipmap.man1,R.mipmap.man2,
                R.mipmap.man3,R.mipmap.man4,R.mipmap.man5} ;


        //, R.mipmap.recycler_circle_image


        if(n == 5)
            n = 0;

        if(n < 5) {
            allItems.add(new RecyclerViewItem(title[n], subTitle[n], image[n]));
        }

        return allItems;
    }



    @Override
    protected void onResume() {
        super.onResume();
        startTimer();
    }

    public void startTimer() {
        timer = new Timer();
        initializeTimerTask();
        timer.schedule(timerTask, 0, 5000); //
    }

    public void initializeTimerTask() {

        timerTask = new TimerTask() {

            public void run() {

                handler.post(new Runnable() {
                    public void run() {
                        List<RecyclerViewItem> rowListItem = getItemList();
                        linearLayoutManager = new LinearLayoutManager(MainActivity.this);
                        rView = (RecyclerView) findViewById(R.id.recycler_view);
                        rView.setLayoutManager(linearLayoutManager);
                        recylerViewAdapterDemo = new RecylerViewAdapterDemo(MainActivity.this, rowListItem);
                        rView.setAdapter(recylerViewAdapterDemo);

                        n++;
                    }
                });
            }
        };
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (timer != null) {
            timer.cancel();
            timer = null;
        }
    }
}