<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <rotate
        android:fromDegrees="0"
        android:toDegrees="-50"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="200"/>
    <rotate
        android:startOffset="200"
        android:fromDegrees="0"
        android:toDegrees="100"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="400"/>
    <rotate
        android:startOffset="600"
        android:fromDegrees="0"
        android:toDegrees="-100"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="400"/>
    <rotate
        android:startOffset="1000"
        android:fromDegrees="0"
        android:toDegrees="100"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="400"/>
    <rotate
        android:startOffset="1400"
        android:fromDegrees="0"
        android:toDegrees="-100"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="400"/>
    <rotate
        android:startOffset="1800"
        android:fromDegrees="0"
        android:toDegrees="50"
        android:pivotY="50%"
        android:pivotX="50%"
        android:duration="200" />

</set>