·         Start a new project named AutoCompleteDemo.

·         Create a XML file named list_item.xml and insert the following code in the xml.

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



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



                android:layout_width="fill_parent" 



                android:layout_height="fill_parent" 



                android:padding="10dp" 



                android:textSize="16sp" 



                android:textColor="#000">



</TextView>

This file simple define a TextView that will be used for each item that appears in the list of suggestions.

·         Open the res/layout/main.xml and add an AutoCompleteTextView widget inside the linear layout.

<?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="Student Names"/>

        <AutoCompleteTextView  android:id="@+id/autocompletetextview"

                               android:layout_width="fill_parent"

                               android:layout_height="wrap_content"

                               android:layout_marginLeft="5dp" />

</LinearLayout>

Open res/values/strings.xml and the following resources:

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

<resources>

     <string name="hello">Hello World, AutoCompleteActivity!</string>

     <string name="app_name">AutoCompleteDemo</string>

     <string-array name="studentname_array">

         <item>Rohit</item>

         <item>Rahul</item>

         <item>Amit</item>

         <item>Arun</item>

         <item>Rati</item>

         <item>Aman</item>

         <item>Farhan</item>

         <item>Farhad</item>

         <item>Ritika</item>

     </string-array>

</resources>

·         Open the Activity (java) file and apply the following code:

import android.app.Activity;

import android.os.Bundle;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

  

public class AutoCompleteActivity  extends Activity {

    

     @Override

     public void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.main);

        

         AutoCompleteTextView txtview =(AutoCompleteTextView) 

                                             findViewById(R.id.autocompletetextview);

         String [] names=getResources().getStringArray(R.array.studentname_array);

         ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,   

                                                            R.layout.

                                                           R.layout.list_item,names);

         txtview.setAdapter(adapter);

    }

}

·         Run the application.

The output look something like below:

When the users press some keyword, it will display the related student names automatically from the resource file.