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Autocompletetextview android


AutocompleteTextView provides auto-completion suggestions while a user is typing text. Users can choose from a list of suggestions displayed in a dropdown menu to replace the content of the edit box with one of these items.


Listed below are the contents of the modified main activity file

MainActivity.java


package com.example.androidaura;

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

public class MainActivity extends AppCompatActivity {

    AutoCompleteTextView autocomplete;

    String[] array = { "Blue", "Black", "Brown", "Green", "Red"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        autocomplete = findViewById(R.id.autoCompleteTextView);

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

        autocomplete.setThreshold(2);
        autocomplete.setAdapter(adapter);

    }
}

In order to use you need to create an AutoCompleteTextView Field in your XML.

activity_main.xml


<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.LinearLayoutCompat 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"
    android:orientation="vertical">

    <AutoCompleteTextView
        android:id="@+id/autoCompleteTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="50dp"
        android:ems="10" />

</androidx.appcompat.widget.LinearLayoutCompat>

Output
rating-bar-1

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