Question

我有一个方法，需要一些参数，并动态地将三个图像添加到舞台，它还为三个图像添加背景图像。

我想弄清楚以下内容：如何在背景动画片段和三个动态movieClip中的完整补间中进行补间？我可以在共享相同变量的函数中使用函数吗？

如下所示：

public function addImages(BackGround:String,Image1:String,Image2:String,Image3:String):void
        {


           var symbol_class:Class = getDefinitionByName(BackGround);
           var image1_class:Class = getDefinitionByName(Image1);
           var image2_class:Class = getDefinitionByName(Image2);
           var image3_class:Class = getDefinitionByName(Image3);

                  var main_bg = new symbol_class();
                  var image_1 = new image1_class();
                  var image_2 = new image2_class();
                  var image_3 = new image3_class();

          main_box.addChild(main_bg);

                  var BGTween:Tween = new Tween(my_thumb, "alpha", Strong.easeIn, 0,1,0.5, true);
                  BGTween.addEventListener(TweenEvent.MOTION_FINISH, onFinish);

                   //WHEN BACKGROUND TWEEN IS COMPLETE NOW ADD THE OTHER IMAGES AND FADE THEM IN.
                  function onFinish(e:TweenEvent):void {
                    BGTween.removeEventListener(TweenEvent.MOTION_FINISH, onFinish);

               main_box.addChild(image_1);
                     var image_1_tween:Tween = new Tween(image_1, "alpha", Strong.easeIn, 0,1,0.5, true);

                main_box.addChild(image_2);
                   var image_2_tween:Tween = new Tween(image_2, "alpha", Strong.easeIn, 0,1,0.5, true);

                main_box.addChild(image_3);
                    var image_3_tween:Tween = new Tween(image_3, "alpha", Strong.easeIn, 0,1,0.5, true);

                    }

        }

Answer 1

你在那附近，你不能在函数中定义一个非常类似的函数，但是你可以做到以下几点：

       public function addImages(BackGround:String,Image1:String,Image2:String,Image3:String):void
       {


              var symbol_class:Class = getDefinitionByName(BackGround);
              var image1_class:Class = getDefinitionByName(Image1);
              var image2_class:Class = getDefinitionByName(Image2);
              var image3_class:Class = getDefinitionByName(Image3);

              var main_bg = new symbol_class();
              var image_1 = new image1_class();
              var image_2 = new image2_class();
              var image_3 = new image3_class();

              main_box.addChild(main_bg);

              var BGTween:Tween = new Tween(my_thumb, "alpha", Strong.easeIn, 0,1,0.5, true);
              BGTween.addEventListener(TweenEvent.MOTION_FINISH, function(e:TweenEvent) {
                    //WHEN BACKGROUND TWEEN IS COMPLETE NOW ADD THE OTHER IMAGES AND FADE THEM IN.
                    (e.target as EventDispatcher).removeEventListener(e.type, arguments.callee);

                    main_box.addChild(image_1);
                     var image_1_tween:Tween = new Tween(image_1, "alpha", Strong.easeIn, 0,1,0.5, true);

                    main_box.addChild(image_2);
                   var image_2_tween:Tween = new Tween(image_2, "alpha", Strong.easeIn, 0,1,0.5, true);

                    main_box.addChild(image_3);
                    var image_3_tween:Tween = new Tween(image_3, "alpha", Strong.easeIn, 0,1,0.5, true);
              });
      }

这称为闭包，因为它是匿名函数，它引用其直接范围之外的值。您可以在Wikipedia上详细了解它们。还要注意 removeEventListener 是如何更改的，这是删除匿名函数的方法，因为它不存在名称引用。

Answer 2

使用TweenLite？ http://www.greensock.com/tweenlite

用法：

TweenLite.to(bgObject, timeToFade,{alpha:0, onComplete:addThreeImages});

public function addThreeImages():void
{
//here you can add your images
}

补间背景然后动态图像 - AS3 Flash

2 个答案: