Fastis is a fully customisable UI component for picking dates and ranges created using the JTAppleCalendar library.

• Requirements
• Features
• Android implementation
• Installation
• Usage
  • Quick Start
  • Single and range modes
  • Configuration
  • Shortcuts
  • Customization
  • SwiftUI
• Credits
• License

• iOS 13.0+
• Xcode 11.0+
• Swift 5.0+

• Flexible customization
• Shortcuts for dates and ranges
• Single date and date range modes

• appmonkey8010/AMCalendar

CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:

$ gem install cocoapods

To integrate Fastis into your Xcode project using CocoaPods, specify it in your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '13.0'
use_frameworks!

target '<Your Target Name>' do
    pod 'Fastis', '~> 2.0'
end

Then, run the following command:

$ pod install

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler.

Once you have your Swift package set up, adding Fastis as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
    .package(url: "https://github.com/simla-tech/Fastis.git", .upToNextMajor(from: "2.0.0"))
]

Carthage isn't supported.

If you prefer not to use either of the dependency managers mentioned above, you can manually integrate Fastis into your project.

import Fastis

class MyViewController: UIViewController {

    func chooseDate() {
        let fastisController = FastisController(mode: .range)
        fastisController.title = "Choose range"
        fastisController.maximumDate = Date()
        fastisController.allowToChooseNilDate = true
        fastisController.shortcuts = [.today, .lastWeek]
        fastisController.dismissHandler = { [weak self] action in
            switch action {
            case .done(let newValue):
                ...
            case .cancel:
                ...
            }
        }
        fastisController.present(above: self)
    }

}

If you want to get a single date, you have to use the Date type:

let fastisController = FastisController(mode: .single)
fastisController.initialValue = Date()
fastisController.dismissHandler = { [weak self] action in
    switch action {
    case .done(let resultDate):
        print(resultDate) // resultDate is Date
    case .cancel:
        ...
    }
}

If you want to get a date range, you have to use the FastisRange type:

let fastisController = FastisController(mode: .range)
fastisController.initialValue = FastisRange(from: Date(), to: Date()) // or .from(Date(), to: Date())
fastisController.dismissHandler = { [weak self] action in
    switch action {
    case .done(let resultRange):
        print(resultRange) // resultRange is FastisRange
    case .cancel:
        ...
    }
}

FastisController has the following default configuration parameters:

var shortcuts: [FastisShortcut<Value>] = []
var allowsToChooseNilDate: Bool = false
var dismissHandler: ((DismissAction) -> Void)? = nil
var initialValue: Value? = nil
var minimumDate: Date? = nil
var maximumDate: Date? = nil
var selectMonthOnHeaderTap: Bool = true
var allowDateRangeChanges: Bool = true
var closeOnSelectionImmediately: Bool = false

• shortcuts- Shortcuts array. The default value is []. See Shortcuts section
• allowsToChooseNilDate- Allow to choose nil date. If you set true, the done button will always be enabled and you will be able to reset selection by you tapping on selected date again. The default value is false.
• dismissHandler- The block to execute after the dismissal finishes. The default value is nil. Return DismissAction.done(FastisValue?) after the "Done" button will be tapped or DismissAction.cancel when controller dismissed without tapped the "Done" button.
• initialValue- And initial value which will be selected by default. The default value is nil.
• minimumDate- Minimal selection date. Dates less than current will be marked as unavailable. The default value is nil.
• maximumDate- Maximum selection date. Dates more significant than current will be marked as unavailable. The default value is nil.
• selectMonthOnHeaderTap (Only for .range mode) - Set this variable to true if you want to allow select date ranges by tapping on months. The default value is true.
• allowDateRangeChanges (Only for .range mode) - Set this variable to false if you want to disable date range changes. Next tap after selecting a range will start a new range selection. The default value is true.
• closeOnSelectionImmediately (Only for .single mode) - Set this variable to true if you want to hide view of the selected date and close the controller right after the date is selected. The default value is false

Using shortcuts allows you to select set dates or date ranges quickly. By default .shortcuts is empty. The bottom container will be hidden if you don't provide any shortcuts.

In Fastis available some prepared shortcuts for each mode:

• For .single: .today, .tomorrow, .yesterday
• For .range: .today, .lastWeek, .lastMonth

Also, you can create your own shortcut:

var customShortcut = FastisShortcut(name: "Today") {
    let now = Date()
    return FastisRange(from: now.startOfDay(), to: now.endOfDay())
}
fastisController.shortcuts = [customShortcut, .lastWeek]

Fastis can be customised global or local. FastisConfig have some sections:

• calendar - Base calendar that used to render UI. Default value is .current
• controller - base view controller (cancelButtonTitle, doneButtonTitle, etc.)
• monthHeader - month titles
• dayCell - day cells (selection parameters, font, etc.)
• todayCell - today cell (selection parameters, font, circle view, etc.). If you set todayCell to nil, view will use dayCell instead
• weekView - top header view with weekday names
• currentValueView - current value view appearance (clear button, date format, etc.)
• shortcutContainerView - bottom view with shortcuts
• shortcutItemView - shortcut item in the bottom view

To customise all Fastis controllers in your app, use FastisConfig.default:

FastisConfig.default.monthHeader.labelColor = .red

To customise a special FastisController instance:

var customConfig = FastisConfig.default
customConfig.controller.dayCell.dateLabelColor = .blue
let fastisController = FastisController(mode: .range, config: customConfig)

To customise a special FastisController instance with custom calendar:

var customConfig: FastisConfig = .default
var calendar = Calendar(identifier: .islamicUmmAlQura)
calendar.locale = .autoupdatingCurrent
customConfig.calendar = calendar
let fastisController = FastisController(mode: .range, config: customConfig)
fastisController.minimumDate = calendar.date(byAdding: .month, value: -2, to: Date())
fastisController.maximumDate = calendar.date(byAdding: .month, value: 3, to: Date())

To customise a today cell:

let config = FastisConfig.withCurrentDate
config.todayCell.dateLabelColor = .red
config.todayCell.onRangeLabelColor = .red
config.todayCell.circleSize = 4
config.todayCell.circleViewColor = .red

If you don't want to customzie today date cell, just set config.todayCell = nil and today cell will use dayCell config.

The library also contains a SwiftUI wrapper

If you want to get a date range:

FastisView(mode: .single, dismissHandler: { action in
    switch action {
    case .done(let resultDate):
        print(resultDate) // resultDate is Date
    case .cancel:
        ...
    }
})
.title("Choose range")
.initialValue(self.currentValue as? FastisRange)
.minimumDate(Calendar.current.date(byAdding: .month, value: -2, to: Date()))
.maximumDate(Calendar.current.date(byAdding: .month, value: 3, to: Date()))
.allowToChooseNilDate(true)
.allowDateRangeChanges(false)
.shortcuts([.lastWeek, .lastMonth])
.selectMonthOnHeaderTap(true)

If you want to get a single date:

FastisView(mode: .range, dismissHandler: { action in
    switch action {
    case .done(let resultRange):
        print(resultRange) // resultRange is FastisRange
    case .cancel:
        ...
    }
})
.title("Choose date")
.initialValue(self.currentValue as? Date)
.minimumDate(Calendar.current.date(byAdding: .month, value: -2, to: Date()))
.maximumDate(Date())
.allowToChooseNilDate(true)
.allowDateRangeChanges(false)
.shortcuts([.yesterday, .today, .tomorrow])
.closeOnSelectionImmediately(true)

• Ilya Kharlamov (@ilia3546)
• Uriy Devyataev (@UriyDevyataev)

Fastis is released under the MIT license. See LICENSE for details.