https://qooah.com/2013/07/01/android-%e7%89%88-facebook-%e8%a2%ab%e7%88%86%e6%94%b6%e9%9b%86%e7%94%a8%e6%88%b6%e6%89%8b%e6%a9%9f%e8%99%9f%e7%a2%bc%ef%bc%81/