AutoCompleteTextView in Android

 In this blog i want tell you how we can create AutoCompleteTextView in android 

activity_main.xml

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

<LinearLayout android:layout_width="match_parent"

    android:layout_height="match_parent"

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

    android:orientation="vertical">

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="city name "

        android:textSize="20sp"

        android:layout_gravity="center"

        android:layout_marginTop="20dp"

        />

    <AutoCompleteTextView

        android:id="@+id/my_autocomplte_textview"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:padding="20dp"

        android:hint="search you city name here "

    />

</LinearLayout>

MainActivity.java

package com.example.myfirstapp;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

import android.widget.Toast;

import androidx.annotation.Nullable;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private AutoCompleteTextView autoCompleteTextView;

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.auto_complete_textview);

        autoCompleteTextView=findViewById(R.id.my_autocomplte_textview);

        String[] cityName=getResources().getStringArray(R.array.city_name);

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

        autoCompleteTextView.setAdapter(adapter);

        autoCompleteTextView.setThreshold(1);

    }

}

String.xml

<resources>

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

   <string-array name="city_name">

       <item>Ghaziabad</item>

       <item>Delhi</item>

       <item>Rajnagar</item>

       <item>sultanpur</item>

       <item>Lucknow</item>

   </string-array>

</resources>

Output