Spinner

Spinners provide a quick way to select one value from a set. In the default state, a spinner shows its currently selected value. Touching the spinner displays a dropdown menu with all other available values, from which the user can select a new one.

Same List view example you can use here just changing Listview to gridview.

Activity_main.xml

<?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:layout_height="match_parent" >

    <Spinner
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/spin"
        />
</LinearLayout>

Custom.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

</TextView>

MainActivity.java

package androiindians.spinner;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

 Spinner spinner;
 ArrayAdapter adp;
 String[] Courses={"Android","CoreJava","Adv Java"};
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  spinner= (Spinner) findViewById(R.id.spin);

  adp=new ArrayAdapter(MainActivity.this,
          R.layout.custom,Courses);
  spinner.setAdapter(adp);

  /*spinner.setOnItemClickListener(
          new AdapterView.OnItemClickListener() {
           @Override
           public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Toast.makeText(MainActivity.this,
                    "position="+position+" "+"id"+id, Toast.LENGTH_LONG).show();
           }


          });*/

 }
}