https://blog.faceutil.com/2017/03/27/apk-%ec%bb%b4%ed%8c%8c%ec%9d%bc%ea%b3%bc-%eb%94%94%ec%bb%b4%ed%8c%8c%ec%9d%bc-%eb%b0%a9%eb%b2%95-apk-manager-5-1-%e3%8e%8d/