How to create a list and perform action in Android

Just drop listview widget in layout and give id listView1 or paste this code in main xml file:

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <ListView

        android:id="@+id/listView1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

    </ListView>

</LinearLayout>


Now open your Java file and paste below code
  

package com.smr; //package name

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

import android.app.Activity;

public class MainActivity extends Activity implementsOnItemClickListener

{

      String values[]={"January", "July", "June", "Ravi","Ravinder", "Abhishek", "Abhinav", "Harkishore", "Hardev"};

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

            ListView lv=(ListView)findViewById(R.id.listView1); 

//Adapter will use to adapt string and pass to list 

            ArrayAdapter<?> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, values);

            lv.setAdapter(adapter);

            lv.setOnItemClickListener(this);

                

      }

      @Override

      public void onItemClick(AdapterView<?> av, View v, int pos,long id)

      {

            String name=(String)av.getItemAtPosition(pos);

            Toast.makeText(getApplicationContext(), "Happy Navratri "+name, Toast.LENGTH_SHORT).show();

           

      }

}