iterate the child drawable of StateListDrawable in android
<p>In my current project,I need to iterate each of the child drawable in StateListDrawable. </p>

<p>In the source code of the StateListDrawable.java, I find a method: </p>

<p>public Drawable getStateDrawable(int index)</p>

<p>but the annotation of this method is @hide, which means I can not use it.</p>

<p>So, is there any alternative way to achieve this?</p>
