Question

[Embed('sounds/music1.mp3')]
public var Music1:Class;

[Embed('sounds/music2.mp3')]
public var Music2:Class;

[Embed('sounds/music3.mp3')]
public var Music3:Class;

public var music:Array;
public var currentSongIndex:int;

    public function complete():void {

        stage.scaleMode = StageScaleMode.SHOW_ALL;
        stage.frameRate = 32;
        music = new Array();
        music.push(new Music1());
        music.push(new Music2());
        music.push(new Music3());

        currentSongIndex = Math.floor( Math.random() * music.length );
        var playFirst:SoundAsset = music[currentSongIndex] as SoundAsset;
        playFirst.addEventListener(Event.COMPLETE, songFinished);
        playFirst.play();
    }

    public function PlaySongFromIndex(songIndex:int){
        var playFirst:SoundAsset = music[currentSongIndex] as SoundAsset;
        playFirst.addEventListener(Event.COMPLETE, songFinished);
        playFirst.play();
    }

    public function songFinished(e:Event){
        if(currentSongIndex < music.Length){
            currentSongIndex++;
            PlaySongFromIndex(currentSongIndex);
        } else {
            currentSongIndex=0;
        }
    }

我正在尝试循环播放嵌入音乐，但只播放了第一首随机歌曲，然后只是沉默...无法理解为什么下一首歌不播放，谁能告诉我？

Answer 1

在你的complete处理程序的条件中，你正在测试music.Length（注意大写的L），它会在执行时立即抛出错误。您还需要修复当前允许索引增加超出数组范围的测试（请记住，数组元素是0索引的）。

此外，由于您未从PlaySongFromIndex条件调用else方法，因此程序将不会每三次播放第一首歌曲一次。

尝试使用以下代码更新代码：

public function songFinished(e:Event){
    if(currentSongIndex < music.length - 1){
        currentSongIndex++;
    } else {
        currentSongIndex=0;
    }
    PlaySongFromIndex(currentSongIndex);
}

无法在flex中循环嵌入声音

1 个答案: