https://blog.wongcw.com/2018/12/05/%e9%ab%98%e9%80%9a%e7%b8%bd%e8%a3%81%ef%bc%9a2019%e5%b9%b4%e5%ba%95%e5%89%8d%e5%a4%a7%e9%83%a8%e5%88%86android%e6%97%97%e8%89%a6%e6%94%af%e6%8c%81%e7%be%8e%e5%9c%8b%e9%81%8b%e7%87%9f%e5%95%86%e7%9a%84/