Merge pull request #3 from foxcode7/master

拉取最新代码
Merge pull request #4 from foxcode7/master

pull 最新代码
添加热门搜索横向list展示图书，修改二维码扫描闪光灯按钮
Merge pull request #11 from xuezhangbin/master

添加热门搜索横向list展示图书，修改二维码扫描闪光灯按钮