Android获取所有指定类型的子控件，这样就不需要逐个使用findViewByID来获取控件，来达到控制状态的目的了。

/**  * 获取所有指定类型的子控件  * @param T  * @return  */ private List
     
       getAllChildViews(Class
       T) {  View view = this.getWindow().getDecorView();  return getAllChildViews(view, T); }
     

private List
     
       getAllChildViews(View parent, Class
       T) {  List
      
        allchildren = new ArrayList
       
        ();  if (parent instanceof ViewGroup) {   ViewGroup vp = (ViewGroup) parent;   for (int i = 0; i < vp.getChildCount(); i++) {    View viewchild = vp.getChildAt(i);    if (viewchild.getClass().equals(T)) {     allchildren.add(viewchild);    }    allchildren.addAll(getAllChildViews(viewchild, T));   }  }  return allchildren; }