ListDynamicActivity.java

package com.android.ListDynamic;

import java.util.ArrayList;

import android.app.Activity;

import android.app.ListActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

public class ListDynamicActivity extends ListActivity {

          // LIST OF ARRAY STRINGS WHICH WILL SERVE AS LIST ITEMS

          ArrayList<String> listItems = new ArrayList<String>();

          // DEFINING STRING ADAPTER WHICH WILL HANDLE DATA OF LISTVIEW

          ArrayAdapter<String> adapter;

          // RECORDING HOW MUCH TIMES BUTTON WAS CLICKED

          int clickCounter = 0;

          @Override

          public void onCreate(Bundle icicle) {

                   super.onCreate(icicle);

                   setContentView(R.layout.main);

                   adapter = new ArrayAdapter<String>(this,

                                      android.R.layout.simple_list_item_1, listItems);

                   setListAdapter(adapter);

          }

          // METHOD WHICH WILL HANDLE DYNAMIC INSERTION

          public void addItems(View v) {

                   listItems.add("Clicked : " + clickCounter++);

                   adapter.notifyDataSetChanged();

          }

}

Main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <Button

        android:id="@+id/addBtn"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:onClick="addItems"

        android:text="Add New Item" />

    <ListView

        android:id="@android:id/list"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:drawSelectorOnTop="false" />

</LinearLayout>

Output