<animation-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:drawable="@drawable/ic_progress_1"
        android:duration="150" />
    <item
        android:drawable="@drawable/ic_progress_2"
        android:duration="150" />
    <item
        android:drawable="@drawable/ic_progress_3"
        android:duration="150" />
    <item
        android:drawable="@drawable/ic_progress_4"
        android:duration="150" />
    <item
        android:drawable="@drawable/ic_progress_1"
        android:duration="150" />
</animation-list>