Android Infinite rotation animation

fadeout.xml

<?xml version="1.0" encoding="UTF-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">

    <rotate
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:fromDegrees="0"
            android:toDegrees="360"
            android:pivotX="50%"
            android:pivotY="50%"
            android:duration="2000"
            android:repeatMode="reverse"
            android:repeatCount="infinite"
            android:startOffset="0"
            />
</set>