Flex中调用嵌入声音效果的三种方法的例子

在Flex中如何利用mx.effects SoundEffect类和ProgressBar类的completeEffect样式在进度条（ProgressBar）最后完成时播放一个声音效果的例子中我们了解了如何使用mx.effects SoundEffect类来调用声音效果。接下来的例子演示了Flex中实现调用嵌入声音效果的三种方法。

让我们先来看一下Demo（可以右键View Source或点击这里察看源代码）：




下面是完整代码(或点击这里察看)：

①、使用<mx:SoundEffect />标签, @Embed, mouseDownEffect

Download: main.mxml

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> 
  
    <mx:Script> 
        <![CDATA[ 
            import mx.controls.Alert; 
  
            private var alert:Alert; 
  
            private function showAlert():void { 
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO); 
            } 
        ]]> 
    </mx:Script> 
  
    <mx:SoundEffect id="soundEffect" source="@Embed(source='assets/ding.mp3')" /> 
  
    <mx:Button label="Delete Internet?" click="showAlert();" mouseDownEffect="{soundEffect}" /> 
  
</mx:Application>

②、使用 [Embed], <mx:SoundEffect /> ，mouseDownEffect

Download: main.mxml
<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> 
  
    <mx:Script> 
        <![CDATA[ 
            import mx.controls.Alert; 
  
            [Bindable] 
            [Embed('assets/ding.mp3')] 
            private var ding_mp3:Class; 
  
            private var alert:Alert; 
  
            private function showAlert():void { 
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO); 
            } 
        ]]> 
    </mx:Script> 
  
    <mx:SoundEffect id="soundEffect" source="{ding_mp3}" /> 
  
    <mx:Button label="Delete Internet?" click="showAlert(); " mouseDownEffect="{soundEffect}" /> 
  
</mx:Application>

③、使用[Embed], SoundAsset类, SoundAsset.play()事件

Download: main.mxml

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> 
  
    <mx:Script> 
        <![CDATA[ 
            import mx.controls.Alert; 
            import mx.core.SoundAsset; 
  
            [Embed('assets/ding.mp3')] 
            private var ding_mp3:Class; 
  
            private var ding:SoundAsset = new ding_mp3() as SoundAsset; 
  
            private var alert:Alert; 
  
            private function showAlert():void { 
                alert = Alert.show("Are you sure you want to delete the internet?", "Confirm delete...", Alert.YES | Alert.NO); 
            } 
        ]]> 
    </mx:Script> 
  
    <mx:Button label="Delete Internet?" click="showAlert(); ding.play()" /> 
  
</mx:Application>

官方链接：
http://help.adobe.com/zh_CN/AS3LCR/Flex_4.0/mx/effects/SoundEffect.html
http://www.airia.cn/actionscript3api/livedocs/mx/effects/SoundEffect.html