##Use
picker = YKDatePickerView(frame: CGRect(x: 0, y: 150, width: self.view.width, height: 104))
picker.delegate = self
self.view.addSubview(picker)
##Delegate extension ViewController: YKDatePickerViewDelegate{ func selecteCalenderDate(cal: YKCalender) { CGLog("(cal.year)-(cal.month)-(cal.day)") } }