<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
        android:pivotX="50%" android:pivotY="50%"
        android:fromDegrees="0" android:toDegrees="360">
    <shape
        android:shape="ring"
        android:innerRadiusRatio="3"
        android:thicknessRatio="8"
        android:useLevel="false">
    <gradient
                android:type="sweep"
                android:useLevel="false"
                android:startColor="#ffffffff"
                android:centerColor="#ff808080"   
                android:centerY="0.45"
                android:endColor="#ff000000"/>
    </shape>
</rotate>