https://qooah.com/2013/01/31/%e4%b8%8d%e8%83%bd%e8%aa%aa%e7%9a%84%e5%92%aa%e5%92%aa-nokia-%e7%9c%9f%e7%9a%84%e5%9c%a8%e5%81%9a-android-%e6%a9%9f/