All visible ui elements on the devices, include three types: Hud UI, Holder(Panel), and Components which must belong to a Holder.

• Holder（Combined with lots of components）
  • Component
    • Nonaction
    1. UITxt
    2. UIProg
    3. UISonItem
    4. UISonGeneral
    5. UIScrollFixed
    6. UILocker
    7. UILst
    8. UILst_Mid
    9. UILst_Irreg
    • Action
    1. UIButton
    2. UIGroup
    3. UIIpt
    4. UISlider
    5. UITogl
    6. UIRImg
    7. UILoopRoll
• Hud