app/src/main/res/drawable/tween_anim.xml

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
                android:oneshot="false">
    <item
        android:drawable="@mipmap/shuzi0"
        android:duration="1000" />
    <item
            android:drawable="@mipmap/shuzi1"
            android:duration="1000" />

    <item
            android:drawable="@mipmap/shuzi2"
            android:duration="1000" />
    <item
            android:drawable="@mipmap/shuzi3"
            android:duration="1000" />
</animation-list>