Android AutoCompleteTextView düzenlenebilir bir metin alanıdır, kullanıcıların yalnızca bir öneri veya değer seçebileceği bir açılır menüde bir öneri listesi görüntüler.

Android AutoCompleteTextView, EditText sınıfının alt sınıfıdır. MultiAutoCompleteTextView, AutoCompleteTextView sınıfının alt sınıfıdır.

Bu örnekte, otomatik tamamlama metin görünümünde programlama dilleri görüntüleniyor. Tüm programlama dilleri dize dizininde saklanır. Dizinin içeriğini görüntülemek için ArrayAdapter sınıfını kullanıyoruz.

Android’de otomatik tamamlama metin görünümünün basit bir örneğini görelim.

AutoCompleteTextView ve TextView öğesini sürükleyin, şimdi activity_main.xml dosyası şu şekildedir:

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


    <AutoCompleteTextView
        android:id="@+id/autoCompleteTextView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="73dp"
        android:text="Ara..." />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="36dp"
        android:text="Lütfen Bir Programlama Dili Seçin!"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:textSize="25dp"
        android:text="Webinyo.COM" />
</RelativeLayout>

AutoCompleteTextView kodunu yazalım

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {
    String[] language ={"C","C++","Java",".NET","iPhone","Android","ASP.NET","PHP"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Creating the instance of ArrayAdapter containing list of language names
        ArrayAdapter<String> adapter = new ArrayAdapter<String>
                (this,android.R.layout.select_dialog_item,language);
        //Getting the instance of AutoCompleteTextView
        AutoCompleteTextView actv= (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
        actv.setThreshold(1);//will start working from first character
        actv.setAdapter(adapter);//setting the adapter data into the AutoCompleteTextView
        actv.setTextColor(Color.RED);

    }

}

[:en]Android AutoCompleteTextView completes the word based on the reserved words, so no need to write all the characters of the word.

Android AutoCompleteTextView is a editable text field, it displays a list of suggestions in a drop down menu from which user can select only one suggestion or value.

Android AutoCompleteTextView is the subclass of EditText class. The MultiAutoCompleteTextView is the subclass of AutoCompleteTextView class.

In this example, we are displaying the programming languages in the autocompletetextview. All the programming languages are stored in string array. We are using the ArrayAdapter class to display the array content.

Let’s see the simple example of autocompletetextview in android.

Drag the AutoCompleteTextView and TextView from the pallete, now the activity_main.xml file will like this:

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


    <AutoCompleteTextView
        android:id="@+id/autoCompleteTextView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="73dp"
        android:text="Ara..." />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="36dp"
        android:text="Lütfen Bir Programlama Dili Seçin!"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:textSize="25dp"
        android:text="Webinyo.COM" />
</RelativeLayout>

Let’s write the code of AutoCompleteTextView

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends Activity {
    String[] language ={"C","C++","Java",".NET","iPhone","Android","ASP.NET","PHP"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Creating the instance of ArrayAdapter containing list of language names
        ArrayAdapter<String> adapter = new ArrayAdapter<String>
                (this,android.R.layout.select_dialog_item,language);
        //Getting the instance of AutoCompleteTextView
        AutoCompleteTextView actv= (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
        actv.setThreshold(1);//will start working from first character
        actv.setAdapter(adapter);//setting the adapter data into the AutoCompleteTextView
        actv.setTextColor(Color.RED);

    }

}

[:]