A Powerful NSDate replacement【一个强力的NSDate代替者】 GrandTime is a simple ,user-friendly and powerful Datetime tool. as you know, the original iOS date API is awful,very difficult to use. So a develop this DateTime to replace the NSDate API. trust me. it worth you try it
- Very user-friend API【非常友好的API设计】
- Use TimeSpan to describe time interval【使用专门的类TimeSpan来表示时间间隔】
- override operator, you can use operator manipulate DateTime very simple【重载了操作符,可以使用操作符来极为简单地操作DateTime】
- GramdTimer is a weak timer when the VIewController pop to the navigationController, it can deinit correctly【GrandTimer是一个weak 计时器。当ViewController被弹出时,他会自动停止调用并销毁】
Xcode 7.3 and iOS 8.0 the last Swift version 【Xcode 7.3 and iOS 8.0 最新的Swift法版本】
##Installation【安装】