add border on round button press android studio code example

Example 1: how to add corner radius in android button

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/primary" />
    <corners android:radius="5dp" />
</shape>

Example 2: how to create round button in android studio

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="..." android:shape="rectangle">    <solid android:color="#47D476"/>    <corners android:radius="8dp"/></shape>