Android AutoCompleteTextView

AutoCompleteTextView:

AutoCompleteTextView is a kind of EditText where, while the user types, suggestions appear as a drop-down list.

It is commonly employed when typing messages or texts and it hastens completion of the typed text due to its ability to predict typed data.

Example:

                                    
                                            <?xml version="1.0" encoding="utf-8"?>
<LinearLayout
        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=".AutoCompleteTextViewExample"
        android:orientation="vertical"
        android:padding="16dp">
   
       <TextView
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:text="These text check in input your text: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten"
           android:textSize="16sp"
           android:layout_marginBottom="20dp"/>
   
       <AutoCompleteTextView
           android:id="@+id/auto_com_tv"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:completionThreshold="1"
           android:maxLines="1"
           />
   
</LinearLayout>

                                    
                                            package com.example.widgets;
    
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
    
import java.util.ArrayList;
    
public class AutoCompleteTextViewExample extends AppCompatActivity {
   
    AutoCompleteTextView autoCompleteTextView;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_auto_complete_text_view_example);
   
        autoCompleteTextView=(AutoCompleteTextView) findViewById(R.id.auto_com_tv);
   
        final ArrayList arrayList=new ArrayList<>();
        arrayList.add("One");
        arrayList.add("Two");
        arrayList.add("Three");
        arrayList.add("Four");
        arrayList.add("Five");
        arrayList.add("Six");
        arrayList.add("Seven");
        arrayList.add("Eight");
        arrayList.add("Nine");
        arrayList.add("Ten");
   
        ArrayAdapter arrayAdapter=new ArrayAdapter(getApplicationContext(),
                R.layout.support_simple_spinner_dropdown_item,arrayList);
            autoCompleteTextView.setAdapter(arrayAdapter);
   
    }
}

                                    
                                        package com.example.widgets

import android.os.Bundle
import android.widget.ArrayAdapter
import android.widget.AutoCompleteTextView
import androidx.appcompat.app.AppCompatActivity

class AutoCompleteTextViewExample : AppCompatActivity() {

    private lateinit var autoCompleteTextView: AutoCompleteTextView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_auto_complete_text_view_example)

        autoCompleteTextView = findViewById(R.id.auto_com_tv)

        val arrayList = arrayListOf(
            "One", "Two", "Three", "Four", "Five",
            "Six", "Seven", "Eight", "Nine", "Ten"
        )

        val arrayAdapter = ArrayAdapter(
            applicationContext,
            R.layout.support_simple_spinner_dropdown_item,
            arrayList
        )

        autoCompleteTextView.setAdapter(arrayAdapter)
    }
}

Output