首页参考http://blog.csdn.net/u013933720/article/details/78191282 二维码扫描zxing参考https://github.com/heyl1989/Android-Zxing 仿IOS时间滚轮参考https://github.com/heyl1989/Android-PickerView 联系人选择https://github.com/heyl1989/WaveSideBar 日志管理https://github.com/orhanobut/logger 标签控件https://github.com/heyl1989/LabelsView