图片选择器photopicker

http://blog.csdn.net/u010046908/article/details/50767904

http://blog.csdn.net/a2978157/article/details/74644414

http://www.jb51.net/article/80371.htm

//日夜间模式切换

https://blog.csdn.net/qq_38016656/article/details/77855751