ActionScript 3开始和停止拖动

Posted 2021-02-27

simple example of startDrag and stopDrag using AS3

package {
	import flash.display.Sprite;
	import flash.display.Shape;
	import flash.events.MouseEvent;
 
 
	public class DisplayList extends Sprite{
 
		private var _rectangle:Sprite;
 
		public function DisplayList(){
			_rectangle = new Sprite();
			_rectangle.graphics.lineStyle(0, 0xFFFFFF, 1);
			_rectangle.graphics.beginFill(0xFFFFFF, 1);
			_rectangle.graphics.drawRect(0, 0, 100, 50);
			addChild(_rectangle);
			_rectangle.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			_rectangle.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
 
 
		}
		private function onMouseDown(event:MouseEvent):void{
			_rectangle.startDrag();
		}
 
		private function onMouseUp(event:MouseEvent):void{
			_rectangle.stopDrag();
		}
 
	}
}