Adding ListView to the Application

This post will discuss how to add a ListView.
Create a New Application.

Go to Palette. Select the Composite section.
Drag ListView component on to the UI design.

Right click on the ListView dragged on the UI design.
Edit the ID. Give it the name lv_Items.
activity_show_list.xml
<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"
    tools:context=".ShowListActivity" >

    <ListView
        android:id="@+id/lv_Items"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </ListView>

</RelativeLayout>

Add new XML file. See the following code:
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:gravity="center_vertical"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/tv_Item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="@android:color/black" />

</LinearLayout>

Go to Package Explorer --> Expand Project ListViewDemo --> Expand src --> Expand the package com.samples.listviewdemo
--> Open the ShowListActivity.java

package com.samples.listviewdemo;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class ShowListActivity extends Activity {
    // ListView to show the Items
    private ListView lv_Items;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show_list);
      
        // Initialize ListView
        lv_Items = (ListView) findViewById(R.id.lv_Items);
        lv_Items.setAdapter(new ArrayAdapter<String>(getApplicationContext(), R.layout.list_item, R.id.tv_Item, getItems()));
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_show_list, menu);
        return true;
    }
   
    private List<String> getItems() {
        List<String> ls_Items = new ArrayList<String>();
        try {
            ls_Items.add("Apple");
            ls_Items.add("Orange");
            ls_Items.add("Mango");
        } catch (Exception e) {
            Log.e("getItems()", e.getMessage());
        }
        return ls_Items;
    }

}

Run the application.