Question

我有一个容器，其子项需要注册CLICK事件。容器是可拖动的，儿童不应干扰阻力或由其触发。

我很难绕过如何实现这一目标。任何帮助表示赞赏。

如果对象已被移动，通过删除任何单击处理程序，这是我最接近的。这看起来很麻烦

box.addEventListener(MouseEvent.MOUSE_DOWN, dragit);
box.circle.addEventListener(MouseEvent.CLICK, circleclick);


function dragit(e:MouseEvent) 
{
   box.startDrag();
   box.addEventListener(MouseEvent.MOUSE_UP, stopdrag);
}


function stopdrag(e:Event) 
{
if(box.x != 0)
    {
        box.circle.removeEventListener(MouseEvent.CLICK, circleclick);
    }
    box.stopDrag();
}

function circleclick(e:MouseEvent):void
{
trace('clicked');
}

Answer 1

以下内容对我来说很有用，你可以从包括孩子在内的任何地方拖动容器，我添加了一个抑制点击标记，以防止从你可能使用或不使用的孩子拖动容器时的点击，具体取决于你的应用程序

package 
{
    public class Main extends Sprite 
    {

        private var container:Sprite = new Sprite();
        private var suppressClick:Boolean = false;

        public function Main():void 
        {
            if (stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);
        }

        private function init(e:Event = null):void 
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            // entry point

            container.graphics.beginFill(0xff0000, 1);
            container.graphics.drawRect(0, 0, 500, 500);
            container.graphics.endFill();
            addChild(container);

            container.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);

            var child:Sprite = new Sprite();
            child.graphics.beginFill(0x00ff00, 1);
            child.graphics.drawRect(0, 0, 50, 50);
            child.graphics.endFill();
            child.addEventListener(MouseEvent.CLICK, onChildClick);
            child.x = 100;
            child.y = 100;
            container.addChild(child);


        }

        private function onMouseDown(e:MouseEvent):void 
        {
            suppressClick = false;
            stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
            stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
            container.startDrag();
        }

        private function onMouseMove(e:MouseEvent):void 
        {
            suppressClick = true;
        }

        private function onMouseUp(e:MouseEvent):void 
        {
            stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
            stage.removeEventListener(MouseEvent.MOUSE_UP, onMouseUp);
            container.stopDrag();
        }

        private function onChildClick(e:MouseEvent):void 
        {
            if(!suppressClick)
                trace("child clicked");
        }

    }

}

拖动带有可点击子项as3的容器

1 个答案: