Question

我对systen事件的顺序感到困惑。根据本书的说法，在触发'childIntia的'PreInitialize'和'Initialize'事件之后，应该触发'childAdd'事件，而不是按照程序看出来的情况。请帮忙。

我在书中发现的内容如下：

\ Container ---------- Component

预初始化

------------------预初始化

------------------ Ininitialize

childAdd将

初始化

------------------ creationComplete

------------------ updateComplete

creationComplete

updateComplete

=============================================== ============================================

虽然我自己尝试的是如下。这些是在相应事件处理程序中打印的跟踪语句的o / p。

在申请中预先初始化

Application中的CreateChildren

---------------- MyContainer的构造函数

应用程序中的childAdd

---------------- PreInitialize MyContainer

---------------- CreateChildren MyContainer

--------------------------------构造函数ChildContainer

---------------- childAdd MyContainer

------------------------------- PreInitialize ChildContainer

------------------------------- CreateChildren ChildContainer

-------------------------------初始化ChildContainer

----------------初始化MyContainer

请找到以下代码：

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"  layout="vertical"
 xmlns:local= "*" childAdd="handleChildAddApp()" initialize="handleInitializeApp)"
 preinitialize="handlePreinitializeApp()"> 
     <local:MyClass id="MyContainer" preinitialize="handlePreinitializeOuter()" childAdd="handleChildAddOuter()" initialize="handleInitializeOuter()" title="Outer">
         <local:MyPanel id="ChildContainer" preinitialize="handlePreinitializeInner()" initialize="handleInitializeInner()" />
     </local:MyClass>
     <mx:Script>
    <![CDATA[

        public function handlePreinitializeApp():void {

            trace('Preinitialize in Application');

        }


        override protected function createChildren():void {

            trace( "CreateChildren in Application" );

            super.createChildren();

        }


        public function handleChildAddApp():void{

            trace('childAdd in Application');

        }


        public function handleInitializeApp():void{

            trace('Initialize Application');

        }


        public function handleCreationCompleteApp():void{

            trace('CreateChildren in Application');

        }

        public function handlePreinitializeOuter():void{

            trace('PreInitialize MyContainer');

        }


        public function handleChildAddOuter():void{

            trace('childAdd MyContainer');

        }

        public function handleInitializeOuter():void{

            trace('Initialize MyContainer');



        }

        public function handlePreinitializeInner():void{

            trace('PreInitialize ChildContainer');

        }


        public function handleInitializeInner():void{

            trace('Initialize ChildContainer');

        }


    ]]>

</mx:Script>

提前致谢。