2020 Jul. 24. 2020 Jul. 03. 2020 Jun. 28. 参考元 https://androidmonks.com/foreground-service-in-android/ https://qiita.com/naoi/items/03e76d10948fe0d45597 http://www.gigas-jp.com/appnews/archives/6228 https://akira-watson.com/android/servi…