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Simple customizable calendar component in Swift πŸ“†

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Koyomi

Koyomi is a simple calendar view framework for iOS, written in Swift πŸ“†

Content

Platform Carthage compatible License Awesome Swift pod GitHub stars

  • Simple Calendar View πŸ“†
  • Easily usable 😎
  • Customizable in any properties for appearance
  • Selectable calender
  • Complete README
  • Support @IBDesignable and @IBInspectable
  • Compatible with Carthage
  • Support Swift 2.3.
  • Support Swift 3.0

Open Example/Koyomi.xcworkspace and run Koyomi-Example to see a simple demonstration.

Koyomi is designed to be easy to use 😎

    let frame = CGRect(x: 10, y : 20, width: 250, height: 300)
    let koyomi = Koyomi(frame: frame, sectionSpace: 1.5, cellSpace: 0.5, inset: .zero, weekCellHeight: 25)
    view.addSubview(koyomi)

Koyomi is available in Interface Builder. Set custom class of UICollectionView to Koyomi

    @IBOutlet weak var koyomi: Koyomi!

πŸ“† Change displayed month

If you want to change displayed month, call display(in: MonthType). MonthType is defined by three types.

    public enum MonthType { case previous, current, next }
    
    // change month
    koyomi.display(in: .next)

Hide days of other months

If you want to hide days of other months, set isHiddenOtherMonth to true. Days of other months aren't displayed and user can't select.

    koyomi.isHiddenOtherMonth = true

Get current month string

    let currentDateString = koyomi.currentDateString()

NOTE

If you want to change dateFormat of currentDateString, set argument to format. currentDateString(withFormat: "MM/yyyy")

default dateFormat of currentDateString is M/yyyy

The selection state of date

You can configure SelectionMode with style.

SelectionMode has nested enumerations type: SequenceStyle, Style.

    public enum SelectionMode {
        case single(style: Style), multiple(style: Style), sequence(style: SequenceStyle), none
    
        
        public enum SequenceStyle { case background, circle, semicircleEdge, line }
        public enum Style { case background, circle, line }
   }
    
    // default selectionMode is single, circle style
    public var selectionMode: SelectionMode = .single(style: .circle)
    
    // call selectionStyle
    koyomi.selectionMode = .single(style: .circle)
single
SelectionMode .single(style: .background) .single(style: .circle) .single(style: .line)
multiple
SelectionMode .multiple(style: .background) .multiple(style: .circle) .multiple(style: .line)
sequence γ€€
SelectionMode .sequence(style: .background) .sequence(style: .circle) .sequence(style: .semicircleEdge) .sequence(style: .line)

You can configure lineView in the case of line style.

public struct LineView {
    public enum Position { case top, center, bottom }
    public var height: CGFloat = 1
    public var widthRate: CGFloat = 1 // default is 1.0 (0.0 ~ 1.0)
    public var position: Position = .center
}

koyomi.selectionMode = .single(style: .line)
koyomi.lineView.height = 3
koyomi.lineView.position = .bottom
koyomi.lineView.widthRate = 0.7

NOTE

If you don't want to allow user to select date by user interaction, set selectionMode to .none.

Select date in programmatically

You can select specific date .

    let today = Date()
    var components = DateComponents()
    components.day = 7
    let weekLaterDay = Calendar.current.date(byAdding: components, toDate: today)
    koyomi.select(date: today, to: weekLaterDay)
    
    // If want to select only one day. 
    koyomi.select(date: today)
    
    // If want to select multiple day.
    let dates: [Date] = [date1, date2, date3]
    koyomi.select(dates: dates)

You can also unselect available.

    koyomi.unselect(today, to: weekLaterDay) 
    // If want to unselect only one day.
    koyomi.unselect(today)
    // If want to unselect multiple day.
    let dates: [Date] = [date1, date2, date3]
    koyomi.unselect(dates: dates)
    
    // unselect all date
    koyomi.unselectAll()

You can configure style color and text state in selected state.

    @IBInspectable public var selectedStyleColor: UIColor
    
    public enum SelectedTextState { case change(UIColor), keeping }
    public var selectedDayTextState: SelectedTextState

selectedDayTextState

If you want to change day textColor when the user selects day in the Koyomi, set selectedDayTextState to SelectedTextState.change(UIColor).

Also, if you don't want to change day textColor when the user selects day, set selectedDayTextState to SelectedTextState.keeping.

// day text color change white when selected.
koyomi.selectedDayTextState = .change(.white)

// day text color doesn't change when selected.
koyomi.selectedDayTextState = .keeping

Highlight specific days

You can change dayColor and dayBackgroundColor in specific days.

    koyomi
        .setDayColor(.white, of: today, to: weekLaterDay)
        .setDayBackgrondColor(.black, of: today, to: weekLaterDay)
        
        // set day color only one day.
        // .setDayColor(.white, of: today)
        // .setDayBackgrondColor(.black, of: today)

If you want to use KoyomiDelegate, set calendarDelegate to target

    koyomi.calendarDelegate = self

Declaration

koyomi(_: didSelect: forItemAt)

    optional func koyomi(_ koyomi: Koyomi, didSelect date: Date, forItemAt indexPath: IndexPath) 

Tells the delegate that the date at the specified index path was selected. date: the date user selected, when tapped cell

koyomi(_: currentDateString:)

   optional func koyomi(_ koyomi: Koyomi, currentDateString dateString: String)
    
    // if you want to change string format, use `currentDateFormat`
    koyomi.currentDateFormat = "M/yyyy"

Tells the delegate that the displayed month is changed. currentDateString: the current month string, when changed month.

koyomi(_: shouldSelectDates: to: withPeriodLength)

    optional func koyomi(_ koyomi: Koyomi, shouldSelectDates date: Date?, to toDate: Date?, withPeriodLength length: Int) -> Bool
    
    //γ€€control date user selected.
    func koyomi(_ koyomi: Koyomi, shouldSelectDates date: Date?, to toDate: Date?, withPeriodLength length: Int) -> Bool {
    
        if invalidStartDate <= date && invalidEndDate >= toDate {
            print("Your select day is invalid.")
            return false
        }
    
        if length > 90 {
            print("More than 90 days are invalid period.")
            return false
        }
        
        return true
    }

koyomi calls this method before select days. return value: true if the item should be selected or false if it should not. to is always nil if selectionMode isn't sequence.

koyomi(_: selectionColorForItemAt: date:)

    optional func koyomi(_ koyomi: Koyomi, selectionColorForItemAt indexPath: IndexPath, date: Date) -> UIColor?
    
    func koyomi(_ koyomi: Koyomi, selectionColorForItemAt indexPath: IndexPath, date: Date) -> UIColor? {
        return today == date ? UIColor.black : nil
    }

koyomi calls this method before setting selectionColor for specific date. return value: UIColor instance for a different color then the default one or return nil to use the default color.

koyomi(_: fontForItemAt: date:)

    func koyomi(_ koyomi: Koyomi, fontForItemAt indexPath: IndexPath, date: Date) -> UIFont?
    
    func koyomi(_ koyomi: Koyomi, fontForItemAt indexPath: IndexPath, date: Date) -> UIFont? {
        return today == date ? UIFont(name:"FuturaStd-Bold", size:16) : nil
    }

koyomi calls this method before setting font for specific date. return value: UIFont instance for a different font then the default one or return nil to use the default font.

πŸ”§ Customize Koyomi

Customize layout properties

    // Support @IBInspectable properties
    @IBInspectable var sectionSpace: CGFloa
    @IBInspectable var cellSpace: CGFloat
    @IBInspectable var weekCellHeight: CGFloat
    // Public property
    public var inset: UIEdgeInsets

    koyomi.inset = UIEdgeInsets(top: 0.5, left: 0.5, bottom: 0.5, right: 0.5)

Set sectionSpace, cellSpace, weekCellHeight in initialization or Interface Builder.

Customize text postion

    public enum ContentPosition {
        case topLeft, topCenter, topRight
        case left, center, right
        case bottomLeft, bottomCenter, bottomRight
        case custom(x: CGFloat, y: CGFloat)
    }

You can configure text postion.

    // default is .center
    koyomi.dayPosition = .topRight
    koyomi.weekPosition = .center
    
    // custom case
    koyomi.dayPosition = .custom(x: 1.2, y: 2.3)

Customize text font

    // set Day and Week Label Font
    koyomi
        .setDayFont(size: 12) 
        .setWeekFont(size: 8)
        
    // if want to change font name, 
    setDayFont(fontName: ".SFUIText-Medium", size: 12)

Customize weeks text

   koyomi.weeks = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat")
   
   // configure with index
   koyomi.weeks.0 = "Sun"
   koyomi.weeks.1 = "Mon"
   koyomi.weeks.2 = "Tue"
   ...

Customize color properties

    // Support @IBInspectable properties
    @IBInspectable public var sectionSeparatorColor: UIColor
    @IBInspectable public var separatorColor: UIColor
    @IBInspectable public var weekColor: UIColor
    @IBInspectable public var weekdayColor: UIColor
    @IBInspectable public var holidayColor: UIColor
    @IBInspectable public var otherMonthColor: UIColor
    @IBInspectable public var dayBackgrondColor: UIColor
    @IBInspectable public var weekBackgrondColor: UIColor
    @IBInspectable public var selectedStyleColor: UIColor

You can configure the lots of color properties for appearance 😩

Don't worry 😝, you can easily configure appearance by using KoyomiStyle.

    koyomi.style = .tealBlue

KoyomiStyle is defined by 19 types + 1 custom. used iOS Human Interface Guidelines as reference

    enum KoyomiStyle {
        // basic color style
        case monotone, standard, red, orange, yellow, tealBlue, blue, purple, green, pink
        // deep color style
        case deepBlack, deepRed, deepOrange, deepYellow, deepTealBlue, deepBlue, deepPurple, deepGreen, deepPink
        
        case custom(customColor: CustomColorScheme)
    }

To use a custom color scheme, you need to define tuple with the necessarry values

    // This is a replica of the `.deepRed` style, you can unleash your creativity here:
    let customColorScheme = (dayBackgrond: UIColor.KoyomiColor.red,
                           weekBackgrond: UIColor.KoyomiColor.red,
                           week: .white,
                           weekday: .white,
                           holiday: (saturday: UIColor.white, sunday: UIColor.white),
                           otherMonth: UIColor.KoyomiColor.lightGray,
                           separator: UIColor.KoyomiColor.orange)
            
    koyomi.style = KoyomiStyle.custom(customColor: customColorScheme)
  • iOS 8.0+
  • Xcode 8.0+
  • Swift 3.0+

Installation of Swift 2.3

Please install version 0.1.6 or earlier.

pod 'Koyomi', '~> 0.1.6'

CocoaPods

Koyomi is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "Koyomi"

Carthage

Add the following line to your Cartfile:

github "shoheiyokoyama/Koyomi"

If you're using Koyomi in your app, please open a PR to add it to this list! 😊

See the CONTRIBUTING file

shoheiyokoyama, [email protected]

Koyomi is available under the MIT license. See the LICENSE file for more info.