AnimatedStateListDrawable介绍

属性

<animated-selector>根元素额
<item>android:id,android:drawable,android:state_***=[true|false]
<transiton> 设置状态切换时的动画，帧动画或向量动画

例子

<animated-selector
        xmlns:android="......">
<item android:id="@+id/checked" android:drawable="@drawable/rect0"
            android:state_checked="true"/>
<item android:id ="@+id/unchecked" android:drawable="@drawable/rect1"
            android:state_unchecked="false"/>
<transition android:fromId="@id/unchecked"
                    android:toId="@id/checked">
        <animation-list>
            <item android:duration="100" android:drawable="@drawable/rect45/>
            ......
        </animation-list>
</transition>
</animated-selector>

<checkBox
        android:background="@drawable/animstatedrawable"
/>