Demostration of the implementation of an auto-scroll ListView in Android. This gist is a reference for the blog post How to autoscroll a ListView at http://blog.jpardogo.com/autoscroll-a-listview-with-listviewautoscrollhelper/

AutoScrollListActivity.java

package com.jpardogo.android.myapplication.app;

import android.app.ListActivity;
import android.support.v4.widget.AutoScrollHelper;
import android.support.v4.widget.ListViewAutoScrollHelper;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;

import java.util.ArrayList;


public class  AutoScrollListActivity extends ListActivity implements View.OnTouchListener, AbsListView.OnScrollListener {

    private ListViewAutoScrollHelper mScrollHelper;
    private ListView mListView;
    private int TOTAL_ITEMS = 2000;
    private boolean mActionDown;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initList();
        mListView.setOnScrollListener(this);
        mListView.setOnTouchListener(this);
        mListView.setSelection(TOTAL_ITEMS / 2);
        initScrollHelper();
        startAutoScroll();
    }

    private void initList() {
        final ArrayList<String> items = new ArrayList<String>();
        for (int i = 0; i < TOTAL_ITEMS; ++i) {
            items.add("position: " + i);
        }

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

    }

    private void initScrollHelper() {
        mScrollHelper = new ListViewAutoScrollHelper (mListView) {
            @Override
            public void scrollTargetBy(int deltaX, int deltaY) {
                mListView.smoothScrollBy(2, 0);
            }
        };
        mScrollHelper.setEnabled(true);
        mScrollHelper.setEdgeType(AutoScrollHelper.EDGE_TYPE_OUTSIDE);
    }

    private void startAutoScroll() {
        getListView().post(new Runnable() {
            @Override
            public void run() {
                forceScroll();
            }
        });
    }

    private void forceScroll() {
        MotionEvent event = MotionEvent.obtain(System.currentTimeMillis(), System.currentTimeMillis(), MotionEvent.ACTION_MOVE, mListView.getX(), -1, 0);
        mScrollHelper.onTouch(getListView(), event);
    }


    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mActionDown=true;
                break;
            case MotionEvent.ACTION_UP:
                mActionDown=false;
                break;
        }
        return mScrollHelper.onTouch(v, event);
    }

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {
        switch (scrollState) {
            case SCROLL_STATE_IDLE:
                if(!mActionDown){
                    forceScroll();
                }
                break;
        }
    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

    }
}

Thanks for this! Link is broken. Working on is https://medium.com/@jpardogo/how-to-autoscroll-a-listview-c78bf54702e4