内容简介:本节主要介绍了如何将FlexViewer里面的事件分发及监听事件机制剥离出来在其他项目中使用,需要的朋友可以参考下
将FlexViewer里面的事件分发及监听事件机制剥离出来在其他项目中使用
AppEvent.as
package com { import flash.events.Event; /** * @author SamSung * 创建时间:2014-7-24 下午1:21:05 * */ public class AppEvent extends Event { //-------------------------------------------------------------------------- // // Properties // //-------------------------------------------------------------------------- private var _data:Object; private var _callback:Function; public function AppEvent(type:String, data:Object = null, callback:Function = null) { super(type); _data = data; _callback = callback; } /** * The data will be passed via the event. It allows the event dispatcher to publish * data to event listener(s). */ public function get data():Object { return _data; } /** * @private */ public function set data(value:Object):void { _data = value; } /** * The callback function associated with this event. */ public function get callback():Function { return _callback; } /** * @private */ public function set callback(value:Function):void { _callback = value; } /** * Override clone */ public override function clone():Event { return new AppEvent(this.type, this.data, this.callback); } /** * Dispatch this event. */ public function dispatch():Boolean { return EventBus.instance.dispatchEvent(this); } /** * Dispatch an AppEvent for specified type and with optional data and callback reference. */ public static function dispatch(type:String, data:Object = null, callback:Function = null):Boolean { return EventBus.instance.dispatchEvent(new AppEvent(type, data, callback)); } public static function addListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void { EventBus.instance.addEventListener(type, listener, useCapture, priority, useWeakReference); } public static function removeListener(type:String, listener:Function, useCapture:Boolean = false):void { EventBus.instance.removeEventListener(type, listener, useCapture); } } }
EventBus.as
package com { import flash.events.Event; import flash.events.EventDispatcher; /** * The EventBus allows centrallized communication among modules without * point-to-point messaging. It uses the singleton design pattern * to make sure one event bus is available globally. The bus itself * is only available to the container. Modules use the container's * static method to communicate with the event bus. */ public class EventBus extends EventDispatcher { /** Application event bus instance */ public static const instance:EventBus = new EventBus(); /** * Normally the EventBus is not instantiated via the <b>new</b> method directly. * The constructor helps enforce only one EvenBus availiable for the application * (singeton) so that it asures the communication only via a sigle event bus. */ public function EventBus() { } /** * The factory method is used to create a instance of the EventBus. It returns * the only instanace of EventBus and makes sure no another instance is created. */ [Deprecated(replacement="instance")] public static function getInstance():EventBus { return instance; } /** * Basic dispatch function, dispatches simple named events. In the case * that the event is only significant by the event token (type string), * this new dispatch method simplify the code. */ [Deprecated(replacement="AppEvent.dispatch")] public function dispatch(type:String):Boolean { return dispatchEvent(new Event(type)); } } }
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Spring in Action
Craig Walls / Manning Publications / 2011-6-29 / USD 49.99
Spring in Action, Third Edition has been completely revised to reflect the latest features, tools, practices Spring offers to java developers. It begins by introducing the core concepts of Spring and......一起来看看 《Spring in Action》 这本书的介绍吧!