使用加载程序添加图像并使图像成为带有事件处理程序的按钮

Question

如何使用 AS3 的加载器类将图像加载到带有事件处理程序的按钮中？以下是我已经开始的。下面是我单击该消息时收到的错误。

AS：

//call function that starts loading my image
callButtons();


function callButtons():void {       
        var spanish_url = root_path + "spanish.png";
        var spanish_loader = new Loader();
        spanish_loader.load (new URLRequest(spanish_url));

//on load complete call the spanishLoaded function

        spanish_loader.contentLoaderInfo.addEventListener (Event.COMPLETE, spanishLoaded);  
}


//add loaded image to my main_container set x,y and turn it into a button. 

    function spanishLoaded (e:Event):void {
        var my_spanish:Loader = Loader(e.target.loader);    
        my_spanish.x = 1062;
        my_spanish.y = 620;
        main_container.addChild(my_spanish);
        my_spanish.addEventListener (MouseEvent.CLICK, playSpanish);
    }

function playSpanish (){

        trace("IN SPANISH");
}

当我单击舞台上的 spanish.png 时出现的错误是：ArgumentError: Error #1063: MyVideoPlayer_CS4_fla::MainTimeline/playSpanish() 上的参数计数不匹配。预期为 0，结果为 1。

我需要添加 evt:MouseEvent

Answer 1

在您的函数 spanishLoaded 中，您添加一个事件侦听器：

my_spanish.addEventListener (MouseEvent.CLICK, playSpanish);

playSpanish 函数将需要一个鼠标事件：

您有：

function playSpanish ()

这应该是：

function playSpanish (event:MouseEvent)