代号一个声音媒体。play（）内存泄漏？

Question

我的应用程序使用一些简短的声音来获得用户反馈。我使用以下代码：

private void playSound(String fileName) {
    try {
        FileSystemStorage fss = FileSystemStorage.getInstance();
        String sep = fss.getFileSystemSeparator() + "";
        String soundDir; // sounds must be in a directory
        if (fss.getAppHomePath().endsWith(sep)) {
            soundDir = fss.getAppHomePath() + "sounds"; // device
        } else {
            soundDir = fss.getAppHomePath() + sep + "sounds"; // simulator/windows
        }
        if (!fss.exists(soundDir)) {
            // first time a sound is played: create directory
            fss.mkdir(soundDir);
        }
        String filePath = soundDir + sep + fileName;
        if (!fss.exists(filePath)) {
            // first time this sound is played: copy from resources (place file in <project>/src)
            InputStream  is = Display.getInstance().getResourceAsStream(getClass(), "/" + fileName);
            OutputStream os = fss.openOutputStream(filePath);
            com.codename1.io.Util.copy(is, os);
        }
        Media media = MediaManager.createMedia(filePath, false);
        //media.setVolume(100);
        media.play();
    } catch (IOException ex) {
        log("Error playing " + fileName + " " + ex.getMessage());
    }
}

示例调用：

playSound("error.mp3");

Answer 1

我们通常建议为这种用例保留媒体实例。但是如果你不能确保在完成后调用清理：

MediaManager.addCompletionHandler(media, () -> media.cleanup());
media.play();