.package(name: “SwiftUICalendar”, url: “https://github.com/GGJJack/SwiftUICalendar”, from: “0.1.14”)

pod ‘SwiftUICalendar’

import SwiftUICalendar

CalendarView() { date in
Text(“\(date.day)”)
}

CalendarView(controller) { date in
….
}
.onChange(of: controller.yearMonth) { yearMonth in
print(yearMonth)
}

public struct CalendarView<CalendarCell: View, HeaderCell: View>: View {
public init(
_ controller: CalendarController = CalendarController(),
startWithMonday: Bool = false,
@ViewBuilder component: @escaping (YearMonthDay) -> CalendarCell
) {
…
}
public init(
_ controller: CalendarController = CalendarController(),
startWithMonday: Bool = false,
headerSize: HeaderSize = .fixHeight(40),
@ViewBuilder header: @escaping (Week) -> HeaderCell,
@ViewBuilder component: @escaping (YearMonthDay) -> CalendarCell
) {
…
}

…
}

public enum HeaderSize {
case zero
case ratio
case fixHeight(CGFloat)
}

public class CalendarController: ObservableObject {
public init(
_ yearMonth: YearMonth = .current,
orientation: Orientation = .horizontal,
isLocked: Bool = false
)

…
}

var verticalController = CalendarController(
YearMonth.current,
orientation: .vertical,
isLocked: true
)

var controller = CalendarController()

// Scroll with animate
controller.scrollTo(year: 1991, month: 2, isAnimate: true)

// Scroll without animate
controller.scrollTo(YearMonth.current, isAnimate: false)

// Lock Pager
controller.isLocked = true

public struct YearMonth: Equatable {
public let year: Int
public let month: Int

public init(year: Int, month: Int) { … }

…
}

let date = YearMonth(year: 2021, month: 10)
let now = YearMonth.current // Now

print(date.monthShortString) // Oct // Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

let nextMonth = date.addMonth(value: 1) // {year: 2021, month: 11}

let diff = nextMonth.diffMonth(value: date) // 2021/11 – 2021/10 = 1

let components: DateComponents = nextMonth.toDateComponents()

public struct YearMonthDay: Equatable {
public let year: Int
public let month: Int
public let day: Int
public let isFocusYearMonth: Bool?

public init(year: Int, month: Int, day: Int) { … }

public init(year: Int, month: Int, day: Int, isFocusYearMonth: Bool) { … }

…
}

let date = YearMonthDay(year: 2021, month: 10, day: 26)
let now = YearMonthDay.current

let isToday = now.isToday // true

let dayOfWeek: Week = date.dayOfWeek // Tue // Sun, Mon, Tue, Wed, Thu, Fri, Sat

let toDate = date.date! // { 2021/10/26 }

let components: DateComponents = date.toDateComponents()

let tomorrow = date.addDay(value: 1) // {year: 2021, month: 10, day: 27}

let diff = tomorrow.diffDay(value: date) // 2021/10/27 – 2021/10/26 = 1

public enum Week: Int, CaseIterable {
case sun = 0
case mon = 1
case tue = 2
case wed = 3
case thu = 4
case fri = 5
case sat = 6

public var shortString: String // Sun, Mon, Tue, Wed, Thu, Fri, Sat
}