audioManager = context.getSystemService("audio");
function getVolumeInfo(context, streamType, targetVolume) {
     volume = android.os.ServiceManager.getService("audio").setStreamVolume(streamType, targetVolume, 0, null);
    return volume;
}

getVolumeInfo(context, audioManager.STREAM_ALARM, 7);
// 设置闹钟音量
// 设置指定音量类型

#MVEL表达式 #Javascript