【发布时间】:2011-06-11 02:07:07
【问题描述】:
编辑:无论出于何种原因,它都可以在浏览器中运行,但在 IDE 中编译/调试时则无法运行。
我无法让我的外部 SWF 接收来自我的单例事件管理器 (EventDispatcher) 的调度。具体如下:
- 我使用 getDefinition 方法将外部 SWF 中的子项添加到我的主 SWF。
- 我正在使用一个单例 EventDispatcher,它负责侦听器和调度。
- 使用自定义事件类。
在这段代码中,我试图获得一个静音按钮来告诉主 SWF 已单击静音图标 (SoundClipEvent.MUTE_CLICK)。声音静音后,它应该调度事件 (SoundClipEvent.STATE) 并向 muteIcon 确认状态。目前,静音图标成功地调度了 MUTE_CLICK 事件并且主 SWF 文档类能够拾取它。 MuteIcon(子 SWF MC)从单身人士那里听不到任何声音。
非常感谢您对这个问题的帮助!
SoundClipManager.as:
import flash.events.Event;
import flash.events.EventDispatcher;
public dynamic class SoundClipManager extends EventDispatcher {
private static var isMuted:Boolean;
public function SoundClipManager(blocker:SingletonBlocker):void {
super();
//
if (blocker == null) {
throw new Error("Error: Instantiation failed; Use SoundClipManager.getInstance()");
}
}
public static function get muted():Boolean {
return SoundClipManager.isMuted;
}
public static function set muted(value:Boolean) {
SoundClipManager.isMuted = value;
//
SoundClipManager.getInstance().dispatchEvent(new SoundClipEvent(SoundClipEvent.STATE,SoundClipManager.muted));
}
public static function getInstance():SoundClipManager {
if (instance == null) {
instance = new SoundClipManager(new SingletonBlocker());
}
return instance;
}
public override function dispatchEvent(evt:Event):Boolean {
return super.dispatchEvent(evt);
}
private static function stateChanged(evt:*) {
trace('state changed!');
}
}
internal class SingletonBlocker {}
静音图标.as
import flash.display.MovieClip;
import flash.events.MouseEvent;
import flash.events.Event;
//
public dynamic class IconMute extends MovieClip {
public function IconMute() {
this.addEventListener(Event.ADDED_TO_STAGE,this.addedToStage);
//
SoundClipManager.getInstance().addEventListener(SoundClipEvent.STATE,this.soundClipManagerStateChanged);
}
//
// Methods, Private
//
//
// Events
//
private function muteClick(evt:MouseEvent) {
SoundClipManager.getInstance().dispatchEvent(new SoundClipEvent(SoundClipEvent.MUTE_CLICK));
}
//
private function addedToStage(evt:Event) {
this.addEventListener(MouseEvent.CLICK,this.muteClick);
}
//
private function soundClipManagerStateChanged(evt:*) {
trace("state changed!");
}
}
SoundClipEvent.as
package {
//
import flash.events.Event;
//
public class SoundClipEvent extends Event {
public static const MUTE_CLICK:String = "muteClick";
public static const STATE:String = "state";
//
public var muted:Boolean;
public function SoundClipEvent(type:String,muted:Boolean = false) {
if(muted) this.muted = muted;
//
super(type,true,false);
}
}
}
【问题讨论】:
标签: actionscript-3 events singleton