Autocomplete Textview in Android

AutoCompleteTextView is used to show list of suggestion and select one of them . Basically it looks like as EditText before type . It's a sub class of EditText. Lets see how we can easily implement the AutoCompleteTextView in android .

Step 1: Create Project 

          a) Open Android Studio

          b) Go to File >New> New Project  > Project Name  > Next > Next > Next > Finish 

Step 2 : Layout Design 

open activity_main.xml file and add the bellow code 

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="#ff33b5e5">

    <AutoCompleteTextView

        android:id="@+id/auto"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:hint="Search Language..."

        android:layout_marginTop="20dp"

       />

</RelativeLayout>

Step 3 : Code

open MainActivity class and add the bellow code 

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

/**

 * Created by anupam on 30/9/16.

 */

public class MainActivity extends Activity {

  

    Context context;

    AutoCompleteTextView auto;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        context=this;

      

        String[] Language = { "C", "C++","C#","Java","Objective C",

                "Swift","Php","Python","ASP","ASP.Net","VB.Net"};

        auto=(AutoCompleteTextView)findViewById(R.id.auto);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>

                (this,android.R.layout.select_dialog_item,Language);

        auto.setThreshold(1);//search will start from first character

        auto.setAdapter(adapter);//set the adapter

    }

}

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