smart_select

Smart select allows you to easily convert your usual form selects to dynamic pages with grouped radio or checkbox inputs. This widget is inspired by Smart Select component from Framework7.

Features

  • Select single or multiple choice
  • Open options in page, bottom sheet, or popup dialog
  • Grouping options with sticky header
  • Customizable trigger widget
  • Customizable options item widget
  • Customizable label, value, and group field
  • Filterable option item

TODO

  • Use chip as option item
  • Support dark mode

Usage

For a complete usage, please see the example.

To read more about classes and other references used by smart_select, see the documentation.

Single Choice

String value = 'flutter';
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(options),
    onChange: (val) => setState(() => value = val),
  );
}

Multiple Choice

List value = ['flutter'];
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(
      options,
      isMultiChoice: true,
    ),
    onChange: (val) => setState(() => value = val),
  );
}

Open in Page

By default SmartSelect open options in page.

String value = 'flutter';
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(options),
    target: SmartSelectTarget.page,
    onChange: (val) => setState(() => value = val),
  );
}

Open in Bottom Sheet

String value = 'flutter';
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect.sheet(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(options),
    onChange: (val) => setState(() => value = val),
  );
}

Open in Popup Dialog

String value = 'flutter';
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect.popup(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(options),
    onChange: (val) => setState(() => value = val),
  );
}

Custom Trigger Widget

String value = 'flutter';
List options = [
  { 'value': 'ionic', 'label': 'Ionic' },
  { 'value': 'flutter', 'label': 'Flutter' },
  { 'value': 'react', 'label': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect.popup(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(options),
    builder: (context, state) {
      return ListTile(
        title: Text(state.title),
        subtitle: Text(
          state.valueDisplay,
          style: TextStyle(color: Colors.grey),
          overflow: TextOverflow.ellipsis,
          maxLines: 1,
        ),
        leading: CircleAvatar(
          backgroundColor: Colors.blue,
          child: Text(
            '${state.valueDisplay[0]}',
            style: TextStyle(color: Colors.white)
          ),
        ),
        trailing: Icon(Icons.keyboard_arrow_right, color: Colors.grey),
        onTap: () => state.showOptions(context),
      );
    },
    onChange: (val) => setState(() => value = val),
  );
}

Custom Key Label and Value

String value = 'flutter';
List options = [
  { 'id': 'ionic', 'text': 'Ionic' },
  { 'id': 'flutter', 'text': 'Flutter' },
  { 'id': 'react', 'text': 'React Native' },
];

@override
Widget build(BuildContext context) {
  return SmartSelect.popup(
    title: 'Frameworks',
    value: value,
    option: SmartSelectOption(
      options,
      label: 'id',
      value: 'text',
    ),
    onChange: (val) => setState(() => value = val),
  );
}

Thanks

License

Copyright (c) 2019 Irfan Vigma Taufik

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Libraries

smart_select

Dart

VM

dart:ffi
Foreign Function Interface for interoperability with the C programming language. [...]

Web

dart:html
HTML elements and other resources for web-based applications that need to interact with the browser and the DOM (Document Object Model). [...]
dart:js
Low-level support for interoperating with JavaScript. [...]
dart:js_util
Utility methods to efficiently manipulate typed JSInterop objects in cases where the name to call is not known at runtime. You should only use these methods when the same effect cannot be achieved with @JS annotations. These methods would be extension methods on JSObject if Dart supported extension methods.