结束时如何在 Flash AS3 中循环播放声音? [英] How do you loop a sound in flash AS3 when it ends?

问题描述

使用 AS3 循环播放声音的 AS3 代码是什么?

What AS3 code is used to loop a sound using AS3?

推荐答案

这不会为您提供完美、无间隙的播放，但会导致声音循环.

This won't give you perfect, gapless playback but it will cause the sound to loop.

var sound:Sound = new Sound();
var soundChannel:SoundChannel;

sound.addEventListener(Event.COMPLETE, onSoundLoadComplete);

sound.load("yourmp3.mp3");


// we wait until the sound finishes loading and then play it, storing the
// soundchannel so that we can hear when it "completes".
function onSoundLoadComplete(e:Event):void{
    sound.removeEventListener(Event.COMPLETE, onSoundLoadComplete);
    soundChannel = sound.play();
    soundChannel.addEventListener(Event.SOUND_COMPLETE, onSoundChannelSoundComplete);
}

//  this is called when the sound channel completes.
function onSoundChannelSoundComplete(e:Event):void{
    e.currentTarget.removeEventListener(Event.SOUND_COMPLETE, onSoundChannelSoundComplete);
    soundChannel = sound.play();
}

如果您希望声音以完美、无间隙的播放方式循环多次，您可以调用

If you want the sound to loop many times with a flawless, gapless playback, you can call

sound.play(0, 9999); // 9999 means to loop 9999 times

但是如果您想在第 9999 次播放后无限播放，您仍然需要设置一个 soundcomplete 侦听器.这种做事方式的问题在于您是否必须暂停/重新启动声音.这将创建一个持续时间比实际声音文件持续时间长 9999 倍的 soundChannel，当持续时间长于声音长度时调用 play(duration) 会导致可怕的崩溃.

But you still would need to set up a soundcomplete listener if you want infinite playback after the 9999th play. The problem with this way of doing things is if you have to pause/restart the sound. This will create a soundChannel whose duration is 9999 times longer than the actual sound file's duration, and calling play(duration) when duration is longer than the sound's length causes a horrible crash.

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