audioManager = context.getSystemService("audio");
audio =android.os.ServiceManager.getService("audio");
function getVolumeInfo(context, streamType, targetVolume) {
    currentVolume = audio.getStreamVolume(streamType);
    maxVolume = audio.getStreamMaxVolume(streamType);
    return maxVolume;
}

getVolumeInfo(context, audioManager.STREAM_ALARM);
// 获取指定音量类型的上限

#MVEL表达式 #Javascript
 
 
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