https://blog.wongcw.com/2020/07/09/android-11%e6%96%b0%e5%8a%9f%e8%83%bdauto-connect%ef%bc%9a%e7%84%a1%e9%9c%80%e5%86%8d%e7%82%ba%e8%87%aa%e5%8b%95%e9%80%a3%e6%8e%a5wi-fi%e7%85%a9%e6%83%b1/