Question

在下面的代码中，如果单击“按钮”，将调用所有三个函数。但在所有其他情况下，只会触发舞台事件。为什么“精灵”事件没有被解雇？

public class EventFlowTest extends Sprite
{
    private var button:Sprite;

    public function EventFlowTest()
    {
        addEventListener(Event.ADDED_TO_STAGE, init);

    }
    private function init(e:Event = null):void
    {
        stage.addEventListener(MouseEvent.MOUSE_DOWN,stageMouseDown,false);


        graphics.beginFill(0x11);
        graphics.drawCircle(100,100,100);
        addEventListener(MouseEvent.MOUSE_DOWN,spriteMouseDown,false);          


        button=new Sprite();
        addChild(button);

        button.graphics.beginFill(0xF1);
        button.graphics.drawCircle(100,100,10);
        button.addEventListener(MouseEvent.MOUSE_DOWN,buttonMouseDown,false);
    }

    private function spriteMouseDown(e:MouseEvent):void
    {
        trace("sprite");
    }

    private function stageMouseDown(e:MouseEvent):void
    {
        trace("stage");
    }

    private function buttonMouseDown(e:MouseEvent):void
    {
        trace("button");
    }

}

Answer 1

解释是“在主类实例中忽略了矢量图形”（鼠标交互） http://books.google.ru/books?id=gUHX2fcLKxYC&lpg=PA533&ots=cvPZ0qbQv8&dq=Vector%20graphics%20ignored%20in%20main-class%20instance&pg=PA533#v=onepage&q=Vector%20graphics%20ignored%20in%20main-class%20instance&f=false

Answer 2

这很奇怪...当您的测试类是文档类时会发生此行为。如果您将测试嵌入到文档类中，则每个项目都按预期运行。我对这种行为没有解释。

package {
    import flash.display.Sprite;

    public class Main extends Sprite {
        public function Main() {
            var test : EventFlowTest = new EventFlowTest();
            addChild(test);
        }
    }
}

事件侦听器/事件流的奇怪行为

2 个答案: