philip-soft/cupertino_calendar_picker

The package provides a sleek and stylish cupertino calendar widgets designed to mimic the aesthetics of iOS. With smooth animations and intuitive user interactions, it seamlessly integrates into your Flutter app to deliver a delightful user experience.

Cupertino Calendar Picker     Cupertino Time Picker

Features

• iOS Style: The cupertino calendar picker follows the design principles of iOS, ensuring consistency and familiarity for iOS users.
• Smooth Animations: Enjoy fluid animations that enhance the overall look and feel of the calendar, providing a polished user experience.
• Customizable: Easily customize the appearance of the calendar to match your app's theme and branding.
• Intuitive Interactions: Users can effortlessly navigate through years, months and interact with the calendar thanks to its intuitive design.

Getting started

In the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  cupertino_calendar_picker: ^2.2.6

Import it:

import 'package:cupertino_calendar_picker/cupertino_calendar_picker.dart';

In your CupertinoApp or MaterialApp add the localizationsDelegates

CupertinoApp(
  localizationsDelegates: const [
    GlobalMaterialLocalizations.delegate,
    GlobalWidgetsLocalizations.delegate,
    GlobalCupertinoLocalizations.delegate,
  ],
);

Widgets

This package offers three convenient widgets for integrating pickers directly into your app.

CupertinoCalendar Widget.

The CupertinoCalendar widget provides an inline calendar that can be displayed directly within your screen.

Cupertino Inline Calendar Light     Cupertino Inline Calendar Dark

Usage Example

SizedBox(
  width: 350,
  child: CupertinoCalendar(
    minimumDateTime: DateTime(2024, 7, 10),
    maximumDateTime: DateTime(2025, 7, 10),
    initialDateTime: DateTime(2024, 8, 15, 9, 41),
    currentDateTime: DateTime(2024, 8, 15),
    timeLabel: 'Ends',
    mode: CupertinoCalendarMode.dateTime,
  ),
),

CupertinoCalendarPickerButton Widget.

The CupertinoCalendarPickerButton widget allows users to open a cupertino calendar picker when the button is pressed.

Cupertino Time Picker Button Light     Cupertino Time Picker Button Dark

Usage Example

CupertinoCalendarPickerButton(
  minimumDateTime: DateTime(2024, 7, 10),
  maximumDateTime: DateTime(2025, 7, 10),
  initialDateTime: DateTime(2024, 8, 15, 9, 41),
  currentDateTime: DateTime(2024, 8, 15),
  mode: CupertinoCalendarMode.dateTime,
  timeLabel: 'Ends',
  onDateTimeChanged: (date) {},
),

CupertinoTimePickerButton Widget.

The CupertinoTimePickerButton widget lets users select a time via the calendar time picker that appears when the button is pressed.

Cupertino Time Picker Button Light     Cupertino Time Picker Button Dark

Usage Example

CupertinoTimePickerButton(
  initialTime: const TimeOfDay(hour: 9, minute: 41),
  onTimeChanged: (time) {},
),

Functions

This package also includes two functions for displaying pickers from your widgets.

showCupertinoCalendarPicker function.

The showCupertinoCalendarPicker function displays a calendar picker around your widget.

• From version 2.0.0, you can specify the CupertinoCalendarMode to allow selection of both date and time.

Usage Example

Future<DateTime?> onCalendarWidgetTap(BuildContext context) async {
  final RenderBox? renderBox = context.findRenderObject() as RenderBox?;
  final nowDate = DateTime.now();

  return showCupertinoCalendarPicker(
    context,
    widgetRenderBox: renderBox,
    minimumDateTime: nowDate.subtract(const Duration(days: 15)),
    initialDateTime: nowDate,
    maximumDateTime: nowDate.add(const Duration(days: 360)),
    mode: CupertinoCalendarMode.dateTime,
    timeLabel: 'Ends',
    onDateTimeChanged: (dateTime) {},
  );
}

Actions

You can add actions to the calendar picker by passing a list of CupertinoCalendarAction objects. The package provides two built-in actions: CancelCupertinoCalendarAction and ConfirmCupertinoCalendarAction.

Cupertino Calendar Picker With Actions Light     Cupertino Calendar Picker With Actions Dark

Usage Example

Future<DateTime?> onCalendarWidgetTap(BuildContext context) async {
  final RenderBox? renderBox = context.findRenderObject() as RenderBox?;
  final nowDate = DateTime.now();

  return showCupertinoCalendarPicker(
    context,
    widgetRenderBox: renderBox,
    minimumDateTime: nowDate.subtract(const Duration(days: 15)),
    initialDateTime: nowDate,
    maximumDateTime: nowDate.add(const Duration(days: 360)),
    timeLabel: 'Ends',
    actions: [
      CancelCupertinoCalendarAction(
        label: 'Cancel',
        onPressed: () {},
      ),
      ConfirmCupertinoCalendarAction(
        label: 'Done',
        isDefaultAction: true,
        onPressed: (dateTime) {},
      ),
    ],
  );
}

[!NOTE] Works only when the calendar is in the CupertinoCalendarType.compact mode.

showCupertinoTimePicker function.

The showCupertinoTimePicker function shows a time picker around your widget.

Usage Example

Future<TimeOfDay?> onTimeWidgetTap(BuildContext context) async {
  final RenderBox? renderBox = context.findRenderObject() as RenderBox?;

  return showCupertinoTimePicker(
    context,
    widgetRenderBox: renderBox,
    onTimeChanged: (time) {},
  );
}

Functions Usage Example

Call the showCupertinoCalendarPicker passing date constrains and widget's RenderBox of the widget above/below which you wish to display the calendar.

@override
Widget build(BuildContext context) {
  return CupertinoApp(
    localizationsDelegates: const [
      GlobalMaterialLocalizations.delegate,
      GlobalWidgetsLocalizations.delegate,
      GlobalCupertinoLocalizations.delegate,
    ],
    home: CupertinoPageScaffold(
      child: Builder(
        builder: (context) {
          /// Passing exactly this `BuildContext` is mandatory here to 
          /// get the `RenderBox` of the appropriate widget.
          return YourWidget(
            onTap: () => onTap(context),
          );
        },
      ),
    ),
  );
}

/// The `BuildContext` comes from the `Builder` above the widget tree.
Future<void> onTap(BuildContext context) {
  final renderBox = context.findRenderObject() as RenderBox?;
  final nowDate = DateTime.now();

  return showCupertinoCalendarPicker(
    context,
    widgetRenderBox: renderBox,
    minimumDate: nowDate.subtract(const Duration(days: 15)),
    initialDate: nowDate,
    maximumDate: nowDate.add(const Duration(days: 360)),
  );
}

How to get a RenderBox?

There are 3 simple ways of how you can get the widget's render box to pass it to the showCupertinoCalendarPicker or showCupertinoTimePicker function.

You can choose any of these.

1. Wrap your widget with Builder widget.

Builder(
  builder: (context) {
    return YourWidget(
      onTap: () => onTap(context),
    );
  },
);

Future<void> onTap(BuildContext context) {
  /// And here you can get the `RenderBox` of your widget 
  /// using the `Builder`s `BuildContext`
  final renderBox = context.findRenderObject() as RenderBox?;
  return showCupertinoCalendarPicker(...);
}

2. Use a GlobalKey.

final globalKey = GlobalKey();

@override
Widget build(BuildContext context) {
  return CupertinoApp(
    localizationsDelegates: const [
      GlobalMaterialLocalizations.delegate,
      GlobalWidgetsLocalizations.delegate,
      GlobalCupertinoLocalizations.delegate,
    ],
    home: CupertinoPageScaffold(
      child: YourWidget(
        key: globalKey,
        onTap: onTap,
      ),
    ),
  );
}

Future<void> onTap(BuildContext context) {
  /// And here you can get the `RenderBox` of your widget using the `GlobalKey`.
  final renderBox = globalKey.currentContext?.findRenderObject() as RenderBox?;
  return showCupertinoCalendarPicker(...);
}

3. Pass a BuildContext directly from your widget's build method.

class YourWidget extends StatelessWidget {
  const YourWidget({
    required this.onTap,
  });

  final void Function(BuildContext context) onTap;

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () => onTap(context),
      child: ...,
    );
  }
}

Future<void> onTap(BuildContext context) {
  /// And here you can get the `RenderBox` of your widget's `build` method.
  final renderBox = context.findRenderObject() as RenderBox?;
  return showCupertinoCalendarPicker(...);
}

Maintainers

Philip Dmitruk