flutter_fast_forms 2.0.0

Enhances the Flutter SDK with form field wrappers, adaptive form field widgets and validation states to speed up form development.

Flutter Fast Forms

Flutter Fast Forms is a Dart package for building Flutter forms fast.

It adds these missing pieces to the Flutter SDK to make Flutter form development a breeze:

• FormField<T> wrappers for all Material / Cupertino input widgets according to the already built-in TextFormField / DropdownButtonFormField
• adaptive and highly customizable FastFormControl<T> widgets with support of validation states.
• FastForm widget that provides current form field values onChanged
• common FormFieldValidator<T> functions

---

Getting Started

1. Add a FastForm to your widget tree:

class MyFormPage extends StatelessWidget {
  MyFormPage({Key? key, required this.title}) : super(key: key);

  final formKey = GlobalKey<FormState>();
  final String title;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(title),
      ),
      body: SafeArea(
        child: SingleChildScrollView(
          child: FastForm(
            formKey: formKey,
            children: [],
          ),
        ),
      ),
    );
  }
}

2. Add FastFormControl<T> children to build up your form:

child: FastForm(
  formKey: formKey,
  children: [
    FastTextField(
      id: 'field_destination',
      label: 'Destination',
      placeholder: 'Where are you going?',
    ),
    FastDateRangePicker(
      id: 'field_check_in_out',
      label: 'Check-in - Check-out',
      firstDate: DateTime.now(),
      lastDate: DateTime.now().add(const Duration(days: 365)),
    ),
    FastCheckbox(
      id: 'field_travel_purpose',
      label: 'Travel purpose',
      title: 'I am travelling for work',
    ),
  ],
)

3. Wrap children with FastFormSection for grouping and consistent padding:

child: FastForm(
  formKey: formKey,
  children: [
    FastFormSection(
      header: const Text('My Form'),
      padding: EdgeInsets.all(16.0),
      children: [
        FastTextField(
          id: 'field_destination',
          label: 'Destination',
          placeholder: 'Where are you going?',
        ),
        // ...
      ],
    ),
  ]
)

Widget Catalog

adaptive FastFormControl<T>	adopts Material	adopts Cupertino	requires Material Widget ancestor when adaptive: true
FastAutocomplete	Autocomplete	no	yes
FastCheckbox	CheckboxListTile	no	yes
FastChoiceChips	ChoiceChip	no	yes
FastCalendar	CalendarDatePicker	no	yes
FastDatePicker	showDatePicker	CupertinoDatePicker	no
FastDateRangePicker	showDateRangePicker	no	yes
FastDropdown	DropdownButtonFormField <String>	no	yes
FastRadioGroup	RadioListTile	no	yes
FastRangeSlider	RangeSlider	no	yes
FastSegmentedControl	no	SlidingSegmenteControl <String>	no
FastSlider	Slider.adaptive	CupertinoSlider	no
FastSwitch	SwitchListTile	CupertinoSwitch	no
FastTextField	TextFormField	CupertinoTextFormFieldRow	no
FastTimePicker	showTimePicker	no / use FastDatePicker with CupertinoDatePickerMode.time	yes