ListView in Android (Basic)

ListView: ListView is a view group that displays a list of scrollable items. The list items are automatically inserted to the list using an Adapter that pulls content from a source such as an array and converts each item result into a view that's placed into the list.

This tutorial describes how to use ListView and ListActivity in Android.

okay! so let's try this small app

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App Name: ListViewBasic
Package Name: com.sunil
Android SDK: Android SDK 2.3.3 / API 10
Default ListActivity Name: ActivityListView
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ActivityListView.java

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package com.sunil;         import android.app.ListActivity;      import android.os.Bundle;      import android.view.View;      import android.widget.ArrayAdapter;      import android.widget.ListView;      import android.widget.Toast;        public class ActivityListView extends ListActivity {        public void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       // Create an array of Strings, that will be put to our ListActivity       String[] namesArray = new String[] { "Linux", "Windows7", "Eclipse",          "Suse", "Ubuntu", "Solaris", "Android", "iPhone" };             /* Create an ArrayAdapter, that will actually make the Strings above       appear in the ListView */         this.setListAdapter(new ArrayAdapter<String>(this,         android.R.layout.simple_list_item_1, namesArray));       }        @Override        protected void onListItemClick(ListView l, View v,         int position, long id) {       super.onListItemClick(l, v, position, id);                // Get the item that was clicked         Object o = this.getListAdapter().getItem(position);       String keyword = o.toString();       Toast.makeText(this, "You selected: " + keyword,          Toast.LENGTH_SHORT).show();       }      }

main.xml

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<?xml version="1.0" encoding="utf-8"?>        <LinearLayout         xmlns:android="http://schemas.android.com/apk/res/android"         android:orientation="vertical"         android:layout_width="fill_parent"         android:layout_height="fill_parent">         <TextView          android:layout_width="fill_parent"          android:layout_height="wrap_content"          android:text="@string/hello" />        </LinearLayout>

AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>        <manifest         xmlns:android="http://schemas.android.com/apk/res/android"         package="com.sunil"         android:versionCode="1"         android:versionName="1.0">         <uses-sdk android:minSdkVersion="10" />                   <application          android:icon="@drawable/icon"          android:label="@string/app_name">          <activity           android:name=".ActivityListView"           android:label="@string/app_name">           <intent-filter>           <action android:name="android.intent.action.MAIN" />           <category android:name="android.intent.category.LAUNCHER" />           </intent-filter>          </activity>                   </application>        </manifest>

   
   
The output Screen will be like this..

You can download the complete source code zip file here : ListViewBasic