<selector />———StateListDrawable
<level-list />———LevelListDrawable
<layer-list />———LayerDrawable
<transition />———TransitionDrawable
<color />———ColorDrawable
<shape />———GradientDrawable
<scale />———ScaleDrawable
<clip />———ClipDrawable
<rotate/>———RotateDrawable
<animation-list />———AnimationDrawable
<inset />———InsetDrawable
<bitmap/>———BitmapDrawable
<nine-patch />———NinePatchDrawable
<stupid-tag />———Resources.NotFoundException