How to check if phone is mute, vibrate or loud in android

This is my code to mute/unmute phone. But I would like to check if phone is alreay on mute and if is not then i will mute it. If is in vibrate then i will make it normal.

Can i check this states somehow?

public void changeRingerMode(Context context){

AudioManager audio = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);

    /**
    * To Enable silent mode.....
    */
    audio.setRingerMode(AudioManager.RINGER_MODE_SILENT);

    /**
    * To Enable Ringer mode.....
    */
    audio.setRingerMode(AudioManager.RINGER_MODE_NORMAL);

}