Scroll DateTime Picker

Welcome to the Scroll DateTime Picker – a versatile and highly customizable Flutter package that allows you to effortlessly pick dates, times, or both. Inspired by the CupertinoDatePicker, our package provides a wealth of features for your date and time selection needs.

🔬 Test The Package 🔬

• Access the example web page here
• The homepage features a straightforward example of the Scroll DateTime Picker.
• To create your own configuration, access the Customizer Page by clicking the Customize Here button.

Key Features

🗓️ Customize Date/Time Format
📅 Customize Date/Time Order
🌍 Customize Date/Time Locale
✏️ Customize Date/Time TextStyles
🎨 Customize Date/Time Decoration
🛞 Customize Scroll Wheel Appearance
📜 Choose Between Infinite/Finite Scroll
🧠 Smart Detection on Invalid Date & Leap Year Handling

Usage

Add to pubspec.yaml

dart pub add scroll_datetime_picker

Import the package

import 'package:scroll_datetime_picker/scroll_datetime_picker.dart';

Simple usage example

ScrollDateTimePicker(
  itemExtent: 54,
  infiniteScroll: true,
  dateOption: DateTimePickerOption(
    dateFormat: DateFormat('yyyyMMMdd'),
    minDate: DateTime(2000, 6),
    maxDate: DateTime(2024, 6),
    initialDate: time,
  ),
  onChange: (datetime) => setState(() {
    time = datetime;
  }),
),

Features Details

🗓️ Customize Date/Time Format

Tailor the date and time format to your specific requirements.

Easily modify the date and time format by adjusting the dateFormat property in DateTimePickerOption.

dateOption: DateTimePickerOption(
    dateFormat: DateFormat('EddMMMy'),
),

The pattern accepted is based on the intl package. See the DateFormat docs to find more about the pattern. DateFormat example patterns:

• EEEE, dd MMM yyyy → Monday, 01 Jan 2000
• hh:mm:ss a → 06:30:00 pm
• DateFormat.yMMMd() → 2020 Jan 01
• DateFormat.jms() → 18:30:00

---

📅 Customize Date/Time Order

Arrange date and time elements in your preferred order.

To customize Date/Time order to show on the picker, simply modify the pattern that is passed to the dateFormat param on DateTimePickerOption. Example:

• To show Year-Month-Day:

  dateOption: DateTimePickerOption(
      dateFormat: DateFormat('yMMMMdd'),
  ),
  

• To show Day-Month-Year:

  dateOption: DateTimePickerOption(
      dateFormat: DateFormat('ddMMMMy'),
  ),
  

---

🌍 Customize Date/Time Locale

Set the locale for date and time, ensuring localization accuracy.

Tailor the date and time locale displayed in the picker by passing the locale to the dateFormat parameter in DateTimePickerOption. If no locale is specified, the package will use the default locale. Locale options are based on the intl package. See the Locale docs to find more about the locale. Here's how to use it:

• English Locale:

  dateOption: DateTimePickerOption(
      dateFormat: DateFormat('yMMMMdd', 'en'),
  ),
  

• French Locale:

  dateOption: DateTimePickerOption(
      dateFormat: DateFormat('yMMMMdd', 'fr'),
  ),
  

• Default Locale:

  dateOption: DateTimePickerOption(
      dateFormat: DateFormat('ddMMMMy'),
  ),
  

---

✏️ Customize Date/Time TextStyles

Craft your own text styles for a personalized appearance.

Personalize the appearance of the date and time text using the DateTimePickerStyle class. Adjust the TextStyle properties for:

• ActiveStyle: Style for text in the center area of the picker
• InactiveStyle: Style for text outside the center area.
• DisabledStyle: Style for invalid date/time text. Invalid date will be explained in Invalid Date section

Here's an example:

style: DateTimePickerStyle(
  activeStyle: TextStyle(
    fontSize: 24,
    letterSpacing: -0.5,
    color: Theme.of(context).primaryColor,
  ),
  inactiveStyle: TextStyle(
    fontSize: 20,
    color: Theme.of(context).primaryColor.withOpacity(0.7),
  ),
  disabledStyle: TextStyle(
    fontSize: 20,
    color: Theme.of(context).disabledColor,
  ),
),

---

🎨 Customize Date/Time Decoration (Color, Border, BorderRadius, etc)

Customize the visual aspects such as Color, Border, BorderRadius, etc by specifying your own BoxDecoration.

To customize BoxDecoration, use DateTimePickerStyle class and pass the BoxDecoration params. The modifiable styles are:

• ActiveDecoration: Style for widget in the center area of the picker
• InactiveDecoration: Style for widget outside center area of the picker
• CenterDecoration: Style that will be applied to the center area of the picker.

Here's an example:

style: DateTimePickerStyle(
   centerDecoration: BoxDecoration(
      color: AppColor.secondary,
      borderRadius: BorderRadius.circular(50),
      border: Border.all(width: 3),
    ),
),

---

🛞 Customize Scroll Wheel Appearance

Define the wheel's appearance, from flat to rounded.

Set custom appearance for the picker wheel. The parameters here are based on flutter's ListWheelScrollView. You can make the picker looks flat or rounded like a wheel. Usage example:

wheelOption = const DateTimePickerWheelOption(
  perspective: 0.01,
  diameterRatio: 1.5,
  squeeze: 1.1,
  offAxisFraction: 1.5,
  physics: BouncingScrollPhysics(),
);

---

📜 Choose Between Infinite/Finite Scroll

Opt for either finite or infinite scrolling, depending on your needs.

Choose between finite and infinite scrolling based on your requirements:

• Finite Scroll: The picker stops at the end of the scroll items.

  ScrollDateTimePicker(
    itemExtent: 54,
    infiniteScroll: false // Finite scroll
    onChange: (_){}
    dateOption: DateTimePickerOption(
      dateFormat: DateFormat('EddMMMy'),
      minDate: DateTime(2000, 6),
      maxDate: DateTime(2024, 6),
    ),
  ),
  

• Infinite Scroll: The picker is infinitely scrollable, with values repeating when reaching the end.

  ScrollDateTimePicker(
    itemExtent: 54,
    infiniteScroll: true // Infinite scroll
    onChange: (_){}
    dateOption: DateTimePickerOption(
      dateFormat: DateFormat('EddMMMy'),
      minDate: DateTime(2000, 6),
      maxDate: DateTime(2024, 6),
    ),
  ),
  

---

🧠 Smart Detection on Invalid Date and Leap Year Handling

Ensure a smooth experience with intelligent handling of invalid dates and leap years.

• If the picker wheel stops at a date before the minimum date or after the maximum date, it will automatically revert to the previous date.
• If the picker wheel stops at an invalid date (e.g. 31 Jun 2021), the picker will automatically adjust the date. In this case, the day will automatically scrolled to be 30 Jun 2021
• If the picker wheel stops at an invalid leap year date e.g. 30 Feb 2020, the picker will automatically fix the invalid value. In this case, the day will automatically scrolled to be 29 Feb 2020

😇 Contribute

We are always thrilled to welcome anyone who wishes to enhance this package. Your contributions are greatly appreciated! 🙇‍♂️

💡 Issue / Feature Requests

If you have specific features in mind, don't hesitate to let me know. Please open an issue to discuss your feature requests, and I'll be more than happy to consider them and collaborate towards making this package even better. 🙏