activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context="com.sababado.circularview.sample.MainActivity">

    <com.sababado.circularview.CircularView
        android:id="@+id/circular_view"
        android:background="#ccc"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        app:textSize="24sp"
        app:centerBackgroundColor="#33b5e5"
        app:text="Hello, MyView"
        app:centerDrawable="@drawable/center_bg"
        app:markerStartingPoint="bottom"
        app:editMode_markerCount="15"
        app:fitToCircle="true"
        android:layout_centerInParent="true"/>


</RelativeLayout>