flex4.6事件分派+组件+参数传递

<?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"
			   xmlns:hz="com.hz.*"
			   creationComplete="initHandler(event)">
	<fx:Script>
		<![CDATA[
			import Event.AddStuEvent;

			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			import mx.events.FlexEvent;

			protected function initHandler(event:FlexEvent):void
			{
				stuInfo.stuColl=new ArrayCollection();
				addEventListener(AddStuEvent.ADD_USER,addBtn);
			}

			protected function addBtn(event:AddStuEvent):void
			{

				if(stuMana.stuName.text!=""&&stuMana.stuAge.text!="")
				{
				stuInfo.stuColl.addItem(event.object);
				}
				else
				{
					Alert.show("两项都要填三！","温馨提示");
				}
			}

		]]>
	</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
	<s:layout>
		<s:HorizontalLayout gap="30" paddingBottom="30" paddingLeft="30" paddingRight="30" paddingTop="30"/>
	</s:layout>
	<hz:StuInfo id="stuInfo" width="50%" height="100%"/>
	<hz:StuManager id="stuMana" width="50%" height="100%"/>
</s:Application>

上面是主application文件：
<?xml version="1.0" encoding="utf-8"?>
<s:Panel xmlns:fx="http://ns.adobe.com/mxml/2009"
		 xmlns:s="library://ns.adobe.com/flex/spark"
		 xmlns:mx="library://ns.adobe.com/flex/mx"
		 title="添加学生"
		 creationComplete="initHandler(event)">
	<fx:Script>
		<![CDATA[
			import Event.AddStuEvent;

			import mx.events.FlexEvent;

			public function initHandler(event:FlexEvent):void
			{
				addBtn.addEventListener(MouseEvent.CLICK,addBtnHandler);
			}

			protected function addBtnHandler(event:MouseEvent):void
			{
				var object:Object=new Object();
				object={sName:stuName.text,sAge:stuAge.text};
				dispatchEvent(new AddStuEvent(AddStuEvent.ADD_USER,object))
			}

		]]>
	</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
		<s:Form width="100%" height="100%">
			<s:FormItem label="学生姓名:" required="true" width="100%">
				<s:TextInput id="stuName" width="100%"/>
			</s:FormItem>
			<s:FormItem label="学生年龄" required="true" width="100%">
				<s:TextInput id="stuAge" width="100%"/>
			</s:FormItem>
		</s:Form>
		<s:controlBarContent>
			<s:Button label="添加学生:" id="addBtn"/>
			<s:Button label="修改信息" id="updateBtn"/>
		</s:controlBarContent>
		<s:controlBarLayout>
			<s:HorizontalLayout horizontalAlign="center" gap="50" paddingTop="9" paddingBottom="9"/>
		</s:controlBarLayout>
</s:Panel>

下面是自定义事件：定义了一个常量和要传递的参数，event属性只设置了string，bubble默认为false。

package Event
{
	import flash.events.Event;

	public class AddStuEvent extends Event
	{
		public static const ADD_USER:String="addUser";
		private var _object:Object=null;
		public function AddStuEvent(type:String, object:Object)
		{
			super(type,true);
			_object=object;
		}

		public function get object():Object
		{
			return _object;
		}

		public function set object(value:Object):void
		{
			_object = value;
		}
		override public function clone():Event
		{
			return new AddStuEvent(type,object);
		}
	}
}

<?xml version="1.0" encoding="utf-8"?>
<s:Panel xmlns:fx="http://ns.adobe.com/mxml/2009"
		 xmlns:s="library://ns.adobe.com/flex/spark"
		 xmlns:mx="library://ns.adobe.com/flex/mx"
		 title="学生列表"
		 creationComplete="initHandler(event)">
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.events.FlexEvent;
			[Bindable]
			public var stuColl:ArrayCollection=null;
			protected function initHandler(event:FlexEvent):void
			{
				// TODO Auto-generated method stub

			}
			private function stuArr(item:Object):String
			{
				var str:String=item.sName+"哈哈"+item.sAge;
				return str;
			}
		]]>
	</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
		<s:List id="stuList" width="100%" height="100%" dataProvider="{stuColl}" labelFunction="stuArr">

		</s:List>
		<s:controlBarContent>
			<s:Button label="删除学生" id="deleteBtn"/>
		</s:controlBarContent>
</s:Panel>