package {

    import flash.display.Sprite;
    
    public class View extends Sprite {
        
        
        //彈出內容層次
        protected var popupLayer  :Sprite;
        //顯示效果層次
        protected var effectLayer :Sprite;
        //文本層次
        protected var textLayer   :Sprite;
        //主要內容層次
        protected var mainLayer   :Sprite;
        
        
        public function View () {
            init ();
        }
        
        
        protected function init ():void {
            
            //實體化
            popupLayer    = new Sprite ();
            effectLayer   = new Sprite ();
            textLayer     = new Sprite ();
            mainLayer     = new Sprite ();
            
            //順序加入
            addChild ( mainLayer );
            addChild ( textLayer );
            addChild ( effectLayer );
            addChild ( popupLayer );
        }
        
    }
}

package {

    import flash.display.Sprite;
    
    public class View extends Sprite {
        
        protected var mainLayer   :Sprite;
        protected var _main       :Sprite;
        
        public function View () {
            init ();
        }
        
        
        protected function init ():void {
        
            _main       = new Sprite ();
            mainLayer   = new Sprite ();
            mainLayer.addChild ( _main );
            
            addChild ( mainLayer );
            
        }
        
        
        public function removeAll ():void {
            if ( mainLayer.contains ( _main ) {
                mainLayer.removeChild ( _main );
            }
            _main = new Sprite ();
            mainLayer.addChild ( _main );
        }
        
    }
}