类扩展 Date+Extension
import UIKit
extension Date {
//MARK: - 获取日期各种值
//MARK: 年
func year() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,.month,.day],from: self)
return com.year!
}
//MARK: 月
func month() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: self)
return com.month!
}
//MARK: 日
func day() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: self)
return com.day!
}
//MARK: 星期几
func weekDay()->Int{
let interval = Int(self.timeIntervalSince1970)
let days = Int(interval/86400) // 24*60*60
let weekday = ((days + 4)%7+7)%7
return weekday == 0 ? 7 : weekday
}
//MARK: 当月天数
func countOfDaysInMonth() ->Int {
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let range = (calendar as NSCalendar?)?.range(of: NSCalendar.Unit.day,in: NSCalendar.Unit.month,for: self)
return (range?.length)!
}
//MARK: 当月第一天是星期几
func firstWeekDay() ->Int {
//1.Sun. 2.Mon. 3.Thes. 4.Wed. 5.Thur. 6.Fri. 7.Sat.
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let firstWeekDay = (calendar as NSCalendar?)?.ordinality(of: NSCalendar.Unit.weekday,in: NSCalendar.Unit.weekOfMonth,for: self)
return firstWeekDay! - 1
}
//MARK: - 日期的一些比较
//是否是今天
func isToday()->Bool {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: self)
let comNow = calendar.dateComponents([.year,from: Date())
return com.year == comNow.year && com.month == comNow.month && com.day == comNow.day
}
//是否是这个月
func isThisMonth()->Bool {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: Date())
return com.year == comNow.year && com.month == comNow.month
}
}
DateClass
import UIKit
class DateClass {
//MARK: - 当前时间相关
//MARK: 今年
static func currentYear() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: Date())
return com.year!
}
//MARK: 今月
static func currentMonth() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: Date())
return com.month!
}
//MARK: 今日
static func currentDay() ->Int {
let calendar = NSCalendar.current
let com = calendar.dateComponents([.year,from: Date())
return com.day!
}
//MARK: 今天星期几
static func currentWeekDay()->Int{
let interval = Int(Date().timeIntervalSince1970)
let days = Int(interval/86400) // 24*60*60
let weekday = ((days + 4)%7+7)%7
return weekday == 0 ? 7 : weekday
}
//MARK: 本月天数
static func countOfDaysInCurrentMonth() ->Int {
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let range = (calendar as NSCalendar?)?.range(of: NSCalendar.Unit.day,for: Date())
return (range?.length)!
}
//MARK: 当月第一天是星期几
static func firstWeekDayInCurrentMonth() ->Int {
//1.Sun. 2.Mon. 3.Thes. 4.Wed. 5.Thur. 6.Fri. 7.Sat.
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let firstWeekDay = (calendar as NSCalendar?)?.ordinality(of: NSCalendar.Unit.weekday,for: Date())
return firstWeekDay! - 1
}
//MARK: - 获取指定日期各种值
//根据年月得到某月天数
static func getCountOfDaysInMonth(year:Int,month:Int) ->Int{
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM"
let date
= dateFormatter.date(from: String(year)+"-"+String(month))
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let range = (calendar as NSCalendar?)?.range(of: NSCalendar.Unit.day,for: date!)
return (range?.length)!
}
//MARK: 根据年月得到某月第一天是周几
static func getfirstWeekDayInMonth(year:Int,month:Int) -> Int{
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM"
let date
= dateFormatter.date(from: String(year)+"-"+String(month))
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
let comps = (calendar as NSCalendar?)?.components(NSCalendar.Unit.weekday,from: date!)
let week = comps?.weekday
return week! - 1
}
//MARK: 获取指定年月的date
static func getMonthDate(year:Int,month:Int) ->Date {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM"
let date
= dateFormatter.date(from: String(year)+"-"+String(month))
let calendar = Calendar(identifier:Calendar.Identifier.gregorian)
var com = calendar.dateComponents([.year,from: date!)
com.month = month
com.day = 1
return calendar.date(from: com)!
}
//MARK: 比较时间先后
static func compareOneDay(oneDay:Date,withAnotherDay anotherDay:Date) -> Int {
let dateFormatter:DateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
let oneDayStr:String = dateFormatter.string(from: oneDay)
let anotherDayStr:String = dateFormatter.string(from: anotherDay)
let dateA = dateFormatter.date(from: oneDayStr)
let dateB = dateFormatter.date(from: anotherDayStr)
let result:ComparisonResult = (dateA?.compare(dateB!))!
//Date1 is in the future
if(result == ComparisonResult.orderedDescending ) {
return 1
}
//Date1 is in the past
else if(result == ComparisonResult.orderedAscending) {
return 2
}
//Both dates are the same
else {
return 0
}
}
//MARK: 时间与时间戳之间的转化
//将时间转换为时间戳
static func stringToTimeStamp(_ stringTime:String)->String {
let dfmatter = DateFormatter()
dfmatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
dfmatter.locale = Locale.current
let date = dfmatter.date(from: stringTime)
let dateStamp:TimeInterval = date!.timeIntervalSince1970
let dateSt:Int = Int(dateStamp)
return String(dateSt)
}
//将时间戳转换为年月日
static func timeStampToString(_ timeStamp:String)->String {
let string = NSString(string: timeStamp)
let timeSta:TimeInterval = string.doubleValue
let dfmatter = DateFormatter()
dfmatter.dateFormat="yyyy年MM月dd日"
let date = Date(timeIntervalSince1970: timeSta)
return dfmatter.string(from: date)
}
//将时间戳转换为具体时间
static func timeStampToStringDetail(_ timeStamp:String)->String {
let string = NSString(string: timeStamp)
let timeSta:TimeInterval = string.doubleValue
let dfmatter = DateFormatter()
dfmatter.dateFormat="yyyy年MM月dd日HH:mm:ss"
let date = Date(timeIntervalSince1970: timeSta)
return dfmatter.string(from: date)
}
//将时间戳转换为时分秒
static func timeStampToHHMMSS(_ timeStamp:String)->String {
let string = NSString(string: timeStamp)
let timeSta:TimeInterval = string.doubleValue
let dfmatter = DateFormatter()
dfmatter.dateFormat="HH:mm:ss"
let date = Date(timeIntervalSince1970: timeSta)
return dfmatter.string(from: date)
}
//获取系统的当前时间戳
static func getStamp()->Int{
//获取当前时间戳
let date = Date()
let timeInterval:Int = Int(date.timeIntervalSince1970)
return timeInterval
}
//月份数字转汉字
static func numbertochina(monthNum:Int) -> String {
let ChinaArray = ["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"]
let ChinaStr:String = ChinaArray[monthNum - 1]
return ChinaStr
}
//MARK: 数字前补0
static func add0BeforeNumber(_ number:Int) -> String {
if number >= 10 {
return String(number)
}else{
return "0" + String(number)
}
}
}
