Lift Cycle , 元件生命週期與應用程式週期

§元件生命週期與應用程式週期

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 

  xmlns:s="library://ns.adobe.com/flex/spark" 

  xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"

  preinitialize="application1_preinitializeHandler(event)"

  initialize="application1_initializeHandler(event)"

  creationComplete="application1_creationCompleteHandler(event)"

  applicationComplete="application1_applicationCompleteHandler(event)"

  >

<s:layout>

<s:BasicLayout/>

</s:layout>

<fx:Script>

<![CDATA[

import mx.events.FlexEvent;

import mx.managers.SystemManager;

override protected function createChildren():void

{

　//用來將子物件貼附置容器中

　super.createChildren();

　trace("//---------------------------------------------------");

　trace("//createChildren");

　trace("//---------------------------------------------------");

　trace("");

}

override public function invalidateProperties():void

{

　trace("//---------------------------------------------------");

　trace("//invalidateProperties");

　trace("//---------------------------------------------------");

　trace("");

　super.invalidateProperties();

}

override protected function commitProperties():void

{

　trace("//---------------------------------------------------");

　trace("//commitProperties");

　trace("//---------------------------------------------------");

　trace("");

　super.commitProperties();

}

override public function invalidateSize():void

{

　trace("//---------------------------------------------------");

　trace("//invalidateSize");

　trace("//---------------------------------------------------");

　trace("");

　super.invalidateSize();

}

override protected function measure():void

{

　trace("//---------------------------------------------------");

　trace("//measure");

　trace("//---------------------------------------------------");

　trace("");

　super.measure();

}

override public function invalidateDisplayList():void

{

　trace("//---------------------------------------------------");

　trace("//invalidateDisplayList");

　trace("//---------------------------------------------------");

　trace("");

　super.invalidateDisplayList();

}

override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void

{

　trace("//---------------------------------------------------");

　trace("//updateDisplayList");

　trace("//---------------------------------------------------");

　trace("來源>"+this+",width="+this.width              +",height="+this.height);

　trace("來源>"+this+",width="+this.unscaledWidth+",height="+this.unscaledHeight);

　trace("");

　super.updateDisplayList(unscaledWidth, unscaledHeight);

}

protected function application1_preinitializeHandler(event:FlexEvent):void

{

　trace("//---------------------------------------------------");

　trace("//application1_preinitializeHandler");

　trace("//---------------------------------------------------");　

　trace("");

}

protected function application1_initializeHandler(event:FlexEvent):void

{

　trace("//---------------------------------------------------");

　trace("//application1_initializeHandler");

　trace("//---------------------------------------------------");　
　trace("");

}

protected function application1_creationCompleteHandler(event:FlexEvent):void

{

　trace("//---------------------------------------------------");

　trace("//application1_initializeHandler");
　trace("//application1_creationCompleteHandler");

　trace("//---------------------------------------------------");　
　trace("");

}

protected function application1_applicationCompleteHandler(event:FlexEvent):void

{

　trace("//---------------------------------------------------");

　trace("//application1_initializeHandler");
　trace("//application1_applicationCompleteHandler");

　trace("//---------------------------------------------------"); 　

　trace("");
　//以下這裡可以了解無效化對應有效化動作
　invalidateProperties();
　//invalidateSize();
　//invalidateDisplayList();
}

]]>

</fx:Script>

</s:Application>

/////輸出結果

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//invalidateProperties
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------
//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//invalidateProperties
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//application1_preinitializeHandler
//---------------------------------------------------

//---------------------------------------------------
//createChildren
//---------------------------------------------------

//---------------------------------------------------
//invalidateProperties
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//application1_initializeHandler
//---------------------------------------------------

//---------------------------------------------------
//commitProperties
//---------------------------------------------------

//---------------------------------------------------
//invalidateProperties
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//invalidateSize
//---------------------------------------------------

//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------

//---------------------------------------------------
//measure
//---------------------------------------------------
//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------
//---------------------------------------------------
//updateDisplayList
//---------------------------------------------------
來源>left_Cycle,width=1276,height=600
來源>left_Cycle,width=1276,height=600

//---------------------------------------------------
//application1_creationCompleteHandler
//---------------------------------------------------
//---------------------------------------------------
//application1_applicationCompleteHandler
//---------------------------------------------------
//---------------------------------------------------
//invalidateProperties
//---------------------------------------------------
//---------------------------------------------------
//commitProperties
//---------------------------------------------------
//---------------------------------------------------
//invalidateDisplayList
//---------------------------------------------------
//---------------------------------------------------
//updateDisplayList
//---------------------------------------------------
來源>left_Cycle,width=1276,height=600
來源>left_Cycle,width=1276,height=600