AutoCompleteTextView Demo

This demonstrates the AutoCompleteTextView feature in Android. Here the 'main.xml' layout resource is used and it has an AutoCompleteTextView and a TextView. Here the 'COUNTRIES' array is populated in the code but, you can populate it from a Content Provider. This program will show the available suggestions from the 'COUNTRIES' array when you start typing in the text field.

Activity Class

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.TextView;

public class HelloAutoComplete extends Activity {
    /** Called when the activity is first created. */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        AutoCompleteTextView autoTextView = (AutoCompleteTextView) findViewById(R.id.autocomplete_country);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, COUNTRIES);
        autoTextView.setAdapter(adapter);
        autoTextView.setThreshold(1);    //threshold to show auto complete
       
        TextView out=(TextView)findViewById(R.id.textView1);
        out.setText(textView.getText());
    }
    static final String[] COUNTRIES = new String[] {    //search domain array
          "Afghanistan", "Albania", "Algeria", "American Samoa", "Andorra",
          "Angola", "Anguilla", "Antarctica", "Antigua and Barbuda", "Argentina",
          "Armenia", "Aruba", "Australia", "Austria", "Azerbaijan", "Zimbabwe"
        };
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="tutorial.autocomplete"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".HelloAutoComplete"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
    <uses-sdk android:minSdkVersion="8" />

</manifest>

main.xml   

//The main layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:padding="5dp" android:orientation="vertical">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:text="Country" />
    <AutoCompleteTextView android:id="@+id/autocomplete_country"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:layout_marginLeft="5dp" />
    <TextView android:text="TextView" android:id="@+id/textView1"
        android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView>
</LinearLayout>

list_item.xml

//Auto complete layout
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dp"
    android:textSize="16sp"
    android:textColor="#000">
</TextView>