<?xml version="1.0" encoding="utf-8"?>  

<rotate
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:duration="100"
    android:toDegrees="720">

    <shape
        android:shape="ring"
        android:innerRadiusRatio="3"
        android:thicknessRatio="15"
        android:useLevel="false">

        <size
            android:height="128dp"
            android:width="128dp" />

        <gradient
            android:endColor="#2266dd"
            android:startColor="@android:color/transparent"
            android:type="sweep"
            android:angle="0"
            android:useLevel="false" />
    </shape>

</rotate>
