[移动开发]【Android】【UI】AnimationDrawable

<ImageView
    android:id="@+id/img_flip_up"
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:src="@drawable/flip_up"
    android:contentDescription="flip_up" />

flip_up.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="@drawable/icon1" android:duration="150"></item>
    <item android:drawable="@drawable/icon2" android:duration="150"></item>
    <item android:drawable="@drawable/icon3" android:duration="150"></item>
    <item android:drawable="@drawable/icon4" android:duration="150"></item>
    <item android:drawable="@drawable/icon5" android:duration="150"></item>
    <item android:drawable="@drawable/icon6" android:duration="150"></item>
</animation-list>

val mLoadingAnimationDrawable = binding.forwardAndBackward.imgFlipUp.drawable as AnimationDrawable
mLoadingAnimationDrawable.start()