android rotation animation

rotation.xml

<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true"
    android:fillEnabled="true">

    <rotate
        android:duration="1600"
        android:fromDegrees="0"
        android:pivotX="50%"
        android:pivotY="50%"
        android:startOffset="10"
        android:toDegrees="359" />

</set>

<!-- programatically set interpolator of sync butto rotation animation as a linear one -->
<!-- this.sync_button_rotation.setInterpolator(new LinearInterpolator()); -->