AutoCompleteTextView in Android

Ashwani Yadav

2 December 2020

AutoCompleteTextView

AutoComplete TextView completes Text which is available or already reserved.when We enter character then it matches from reserved words and shows us.It shows suggestion in drop down.

AutoCompleteTextView Example

In this Example we create a AutoCompleteTextView .We use an ArrayAdapter for displaying content.

activity_main

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    

    <AutoCompleteTextView
        android:layout_width="match_parent"
        android:layout_marginTop="100dp"
        android:layout_height="wrap_content"
        android:hint="Enter your country"
        android:id="@+id/autoComplete_tv"/>

</LinearLayout>

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

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

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

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:orientation="vertical"

android:layout_height="match_parent"

tools:context=".MainActivity">

<AutoCompleteTextView

android:layout_width="match_parent"

android:layout_marginTop="100dp"

android:layout_height="wrap_content"

android:hint="Enter your country"

android:id="@+id/autoComplete_tv"/>

</LinearLayout>

In MainActivity we declare array type variable ‘country’ and store some values.

And use ArrayAdapter class and set this adapter to AutoCompleteTextView .

MainActivity

public class MainActivity extends AppCompatActivity {

    String country[]={"India","USA","UK","Brazil"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ArrayAdapter<String > adapter=new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,country);
        AutoCompleteTextView textView=findViewById(R.id.autoComplete_tv);
        textView.setThreshold(1);
        textView.setAdapter(adapter);

    }

public class MainActivity extends AppCompatActivity {

String country[]={"India","USA","UK","Brazil"};

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ArrayAdapter<String > adapter=new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,country);

AutoCompleteTextView textView=findViewById(R.id.autoComplete_tv);

textView.setThreshold(1);

textView.setAdapter(adapter);

}