app/src/main/res/drawable/circle_button_shape.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="30dp" />
<size
android:width="60dp"
android:height="60dp" />
<padding
android:left="2dp"
android:right="2dp"
android:top="2dp"
android:bottom="2dp"/>
</shape>