How to make a circular ripple on a button when it's being clicked?

Question

Background

On the dialer app of Android, when you start searching for something, and you click the arrow button on the left of the EditText, you get a circular ripple effect on it :

The problem

I've tried to have it too, but I got a rectangular one:

    <ImageButton
        android:id="@+id/navButton"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="8dp"
        android:background="?android:attr/selectableItemBackground"
        android:src="@drawable/search_ic_back_arrow"/>

The question

How do I make the button have a circular ripple effect when being clicked? Do I have to create a new drawable, or is there a built in way for that?

Answer 1

If you are using AppCompat theme, then you could set the background of the view as:

android:background="?selectableItemBackgroundBorderless"

This will add circular ripple on 21 and above and square background on below 21.