RecurveBowSight/res/drawable-hdpi/gradient_view.xml

<?xml version="1.0" encoding="utf-8"?>
<shape
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:shape="rectangle">
	<gradient
		android:startColor="#20000000"
		android:centerColor="@color/black"
		android:endColor="#20000000"
		android:angle="0" />
</shape>