activity_demo.xml

<?xml version="1.0" encoding="utf-8"?>
<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:id="@+id/activity_demo"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.orzangleli.radarview.DemoActivity">

    <com.orzangleli.radar.XRadarView
        android:id="@+id/radarView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:count="7"
        app:enabledBorder="true"
        app:borderColor="#ff0000"
        app:boundaryWidth="2dp"
        app:radiusColor="#88D3D8"
        app:enabledShowPoint="false"
        app:layerCount="4"
        app:startColor="#278892"
        app:endColor="#D4F0F2"
        />

</RelativeLayout>