https://blog.wongcw.com/2020/08/05/android%e5%8d%b3%e5%b0%87%e7%8d%b2%e5%be%97%e9%a1%9eairdrop%e5%8a%9f%e8%83%bd%ef%bc%9a%e5%8f%af%e5%90%91%e9%99%84%e8%bf%91%e8%a8%ad%e5%82%99%e5%bf%ab%e9%80%9f%e5%88%86%e4%ba%ab%e6%96%87%e4%bb%b6/