//MARK: - Calendar//按照苹果的习惯，周日放在第一位let weekdayForDisplay = ["周日","周一","周二","周三","周四","周五","周六"]//获取周 周日：1 － 周六：7func getWeekDay(year:Int,month:Int,day:Int) ->Int{let dateFormatter:NSDateFormatter = NSDateFormatter();dateFormatter.dateFormat = "yyyy/MM/dd";let date:NSDate? = dateFormatter.dateFromString(String(format:"%04d/%02d/%02d",year,month,day));if date != nil {let calendar:NSCalendar = NSCalendar.currentCalendar()let dateComp:NSDateComponents = calendar.components(NSCalendarUnit.NSWeekdayCalendarUnit, fromDate: date!)return dateComp.weekday;}return 0;}//这个月的最后一天//先获得下个月的第一天，然后在此基础上减去24小时//注意这里的时间Debug的时候是UTCfunc getLastDay(var year:Int,var month:Int) -> Int?{let dateFormatter:NSDateFormatter = NSDateFormatter();dateFormatter.dateFormat = "yyyy/MM/dd";if month == 12 {month = 0year++}let targetDate:NSDate? = dateFormatter.dateFromString(String(format:"%04d/%02d/01",year,month+1));if targetDate != nil {let orgDate = NSDate(timeInterval:(24*60*60)*(-1), sinceDate: targetDate!)let str:String = dateFormatter.stringFromDate(orgDate)return Int((str as NSString).componentsSeparatedByString("/").last!);}return nil;}

        let today = NSDate()let calendar = NSCalendar(identifier: NSGregorianCalendar)let comps:NSDateComponents = calendar!.components([NSCalendarUnit.Year,NSCalendarUnit.Month,NSCalendarUnit.Day], fromDate: today)

如何居中let paragraph = NSMutableParagraphStyle()paragraph.alignment = NSTextAlignment.Centerlet text  =  NSMutableAttributedString(string: weekdayForDisplay[i],attributes: [NSParagraphStyleAttributeName: paragraph])let CellRect = CGRect(x: leftside  , y:padding + mergin, width: WeekdayColumnWidth, height: RowHeight)text.drawInRect(CellRect)红字粗体text.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(),range:NSMakeRange(0,text.length))text.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(NSDefaultFontSize),range:NSMakeRange(0,text.length))

    //记录每天的格子的Rectvar DayRect = [Int:CGRect]()override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {let SignleTouch = touches.first!let Touchpoint = SignleTouch.locationInView(self)let pick = getDayByTouchPoint(Touchpoint)print("TouchPoint : X = \(Touchpoint.x) Y = \(Touchpoint.y)  Day: \(pick)")if pick != 0 {self.PickedDay = pick }}//根据触摸点获取日期func getDayByTouchPoint(touchpoint:CGPoint) -> Int {for day in DayRect{if day.1.contains(touchpoint){return day.0}}return 0}

//
//  CalendarView.swift
//  PlanAndTarget
//
//  Created by  scs on 15/10/13.
//  Copyright © 2015年  scs. All rights reserved.
//

import UIKit@IBDesignable
class CalendarView: UIView {//MARK: - Inspectable
    @IBInspectablevar CurrentYear : Int = 2015{didSet{if self.CurrentYear < 0 {self.CurrentYear = 2015}setNeedsDisplay()}}@IBInspectablevar CurrentMonth : Int = 10 {didSet{if self.CurrentMonth < 0 || self.CurrentMonth > 12 {self.CurrentMonth = 1}setNeedsDisplay()}}@IBInspectablevar padding : CGFloat = 4 {didSet{if (self.padding > 50 ) {self.padding = 50}setNeedsDisplay()}}@IBInspectablevar mergin : CGFloat = 4 {didSet{if (self.mergin > 50 ) {self.mergin = 50}setNeedsDisplay()}}@IBInspectablevar RowHeight : CGFloat = 20{didSet{if (self.RowHeight > 100 ) {self.RowHeight = 100}setNeedsDisplay()}}@IBInspectablevar PickedDay : Int = 1 {didSet{if (self.PickedDay < 0){self.PickedDay = 1}let lastDay = getLastDay( CurrentYear, month: CurrentMonth)if (self.PickedDay > lastDay!){self.PickedDay = lastDay!}setNeedsDisplay()}}//MARK: - Calendar//按照苹果的习惯，周日放在第一位let weekdayForDisplay = ["周日","周一","周二","周三","周四","周五","周六"]//获取周 周日：1 － 周六：7func getWeekDay(year:Int,month:Int,day:Int) ->Int{let dateFormatter:NSDateFormatter = NSDateFormatter();dateFormatter.dateFormat = "yyyy/MM/dd";let date:NSDate? = dateFormatter.dateFromString(String(format:"%04d/%02d/%02d",year,month,day));if date != nil {let calendar:NSCalendar = NSCalendar.currentCalendar()let dateComp:NSDateComponents = calendar.components(NSCalendarUnit.NSWeekdayCalendarUnit, fromDate: date!)return dateComp.weekday;}return 0;}//这个月的最后一天//先获得下个月的第一天，然后在此基础上减去24小时//注意这里的时间Debug的时候是UTCfunc getLastDay(var year:Int,var month:Int) -> Int?{let dateFormatter:NSDateFormatter = NSDateFormatter();dateFormatter.dateFormat = "yyyy/MM/dd";if month == 12 {month = 0year++}let targetDate:NSDate? = dateFormatter.dateFromString(String(format:"%04d/%02d/01",year,month+1));if targetDate != nil {let orgDate = NSDate(timeInterval:(24*60*60)*(-1), sinceDate: targetDate!)let str:String = dateFormatter.stringFromDate(orgDate)return Int((str as NSString).componentsSeparatedByString("/").last!);}return nil;}//MARK: - Event//记录每天的格子的Rectvar DayRect = [Int:CGRect]()override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {let SignleTouch = touches.first!let Touchpoint = SignleTouch.locationInView(self)let pick = getDayByTouchPoint(Touchpoint)print("TouchPoint : X = \(Touchpoint.x) Y = \(Touchpoint.y)  Day: \(pick)")if pick != 0 {self.PickedDay = pick }}//根据触摸点获取日期func getDayByTouchPoint(touchpoint:CGPoint) -> Int {for day in DayRect{if day.1.contains(touchpoint){return day.0}}return 0}// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.override func drawRect(rect: CGRect) {let paragraph = NSMutableParagraphStyle()paragraph.alignment = NSTextAlignment.Center//查资料可知默认字体为12let NSDefaultFontSize : CGFloat = 12;//绘制表头let UseableWidth :CGFloat = rect.width - (padding + mergin) * 2;let WeekdayColumnWidth : CGFloat = UseableWidth / 7var leftside  : CGFloat = padding + merginfor i in 0...6{let text  =  NSMutableAttributedString(string: weekdayForDisplay[i],attributes: [NSParagraphStyleAttributeName: paragraph])let CellRect = CGRect(x: leftside  , y:padding + mergin, width: WeekdayColumnWidth, height: RowHeight)text.drawInRect(CellRect)leftside += WeekdayColumnWidth}//绘制当月每天var rowCount = 1;leftside  = padding + merginlet today = NSDate()let calendar = NSCalendar(identifier: NSGregorianCalendar)let comps:NSDateComponents = calendar!.components([NSCalendarUnit.Year,NSCalendarUnit.Month,NSCalendarUnit.Day], fromDate: today)//Clear
        DayRect.removeAll()for day in 1...getLastDay(CurrentYear,month:CurrentMonth)!{let weekday = getWeekDay(CurrentYear, month: CurrentMonth, day: day)let text  =  NSMutableAttributedString(string: String(day),  attributes: [NSParagraphStyleAttributeName: paragraph])let LeftTopX = leftside + CGFloat(weekday - 1) * WeekdayColumnWidthlet LeftTopY = padding + mergin + RowHeight * CGFloat(rowCount)let CellRect :CGRect = CGRect(x: LeftTopX, y: LeftTopY, width: WeekdayColumnWidth, height: RowHeight)if (PickedDay == day){//选中的日子，UI效果let PickRectPath = UIBezierPath(roundedRect: CellRect, cornerRadius: RowHeight/2)UIColor.blueColor().colorWithAlphaComponent(0.3).setFill()PickRectPath.fill()}if (comps.year == CurrentYear && comps.month == CurrentMonth && comps.day == day){text.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(),range:NSMakeRange(0,text.length))text.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(NSDefaultFontSize),range:NSMakeRange(0,text.length))}text.drawInRect(CellRect)DayRect[day] = CellRect//绘制了周日之后，需要新的一行if weekday == 7 { rowCount++ }}//绘制外框let path : UIBezierPath = UIBezierPath(rect: CGRect(x: padding, y: padding, width: rect.width - padding * 2 , height: padding + mergin + RowHeight * CGFloat(rowCount - 1) + 10 ))path.stroke()//path = UIBezierPath(rect: CGRect(x: padding + mergin, y: padding + mergin, width: rect.width - (padding + mergin) * 2 , height: rect.height - (padding + mergin) * 2))//path.stroke()
        print("LastDay Of 2015/10 : \(getLastDay(CurrentYear, month: CurrentMonth))" )print("2015/10/18 : \(weekdayForDisplay[getWeekDay(CurrentYear, month: CurrentMonth, day: 18) - 1]  )" )print("Calendar Size Height: \(rect.height)  Width: \(rect.width)" )}}