flutter_form_builder 4.0.0-alpha.1 
flutter_form_builder: ^4.0.0-alpha.1 copied to clipboard
Package to build Material Form with fields like TextField, DropDown, Switches etc. with ability to create custom FormFields and composability and reuse validation functions.
import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter_form_builder/flutter_form_builder.dart';
import 'package:intl/intl.dart';
import 'data.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter FormBuilder Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
inputDecorationTheme: InputDecorationTheme(
labelStyle: TextStyle(color: Colors.purple),
),
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
MyHomePageState createState() {
return MyHomePageState();
}
}
class MyHomePageState extends State<MyHomePage> {
var data;
bool autoValidate = true;
bool readOnly = false;
bool showSegmentedControl = true;
final GlobalKey<FormBuilderState> _fbKey = GlobalKey<FormBuilderState>();
final GlobalKey<FormFieldState> _specifyTextFieldKey =
GlobalKey<FormFieldState>();
ValueChanged _onChanged = (val) => print(val);
var genderOptions = ['Male', 'Female', 'Other'];
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("FormBuilder Example"),
),
body: Padding(
padding: EdgeInsets.all(10),
child: SingleChildScrollView(
child: Column(
children: <Widget>[
FormBuilder(
// context,
key: _fbKey,
autovalidate: false,
initialValue: {
'movie_rating': 5,
},
readOnly: false,
child: Column(
children: <Widget>[
FormBuilderFilterChip(
attribute: 'filter_chip',
decoration: InputDecoration(
labelText: 'Select many options',
),
options: [
FormBuilderFieldOption(
value: 'Test', child: Text('Test')),
FormBuilderFieldOption(
value: 'Test 1', child: Text('Test 1')),
FormBuilderFieldOption(
value: 'Test 2', child: Text('Test 2')),
FormBuilderFieldOption(
value: 'Test 3', child: Text('Test 3')),
FormBuilderFieldOption(
value: 'Test 4', child: Text('Test 4')),
],
),
FormBuilderChoiceChip(
attribute: 'choice_chip',
decoration: InputDecoration(
labelText: 'Select an option',
),
options: [
FormBuilderFieldOption(
value: 'Test', child: Text('Test')),
FormBuilderFieldOption(
value: 'Test 1', child: Text('Test 1')),
FormBuilderFieldOption(
value: 'Test 2', child: Text('Test 2')),
FormBuilderFieldOption(
value: 'Test 3', child: Text('Test 3')),
FormBuilderFieldOption(
value: 'Test 4', child: Text('Test 4')),
],
),
FormBuilderCustomField(
attribute: "name",
validators: [
FormBuilderValidators.required(),
],
initialValue: "Argentina",
formField: FormField(
enabled: true,
builder: (FormFieldState<dynamic> field) {
return InputDecorator(
decoration: InputDecoration(
labelText: "Select option",
contentPadding:
EdgeInsets.only(top: 10.0, bottom: 0.0),
border: InputBorder.none,
errorText: field.errorText,
),
child: Container(
height: 200,
child: CupertinoPicker(
itemExtent: 30,
children: allCountries.map((c) => Text(c)).toList(),
onSelectedItemChanged: (index) {
print(index);
field.didChange(allCountries[index]);
},
),
),
);
},
),
),
FormBuilderColorPickerField(
attribute: 'color_picker',
// initialValue: Colors.yellow,
colorPickerType: ColorPickerType.ColorPicker,
decoration: InputDecoration(labelText: "Pick Color"),
),
FormBuilderChipsInput(
decoration: InputDecoration(labelText: "Chips"),
attribute: 'chips_test',
onChanged: _onChanged,
initialValue: [
Contact('Andrew', 'stock@man.com',
'https://d2gg9evh47fn9z.cloudfront.net/800px_COLOURBOX4057996.jpg'),
],
maxChips: 5,
findSuggestions: (String query) {
if (query.length != 0) {
var lowercaseQuery = query.toLowerCase();
return contacts.where((profile) {
return profile.name
.toLowerCase()
.contains(query.toLowerCase()) ||
profile.email
.toLowerCase()
.contains(query.toLowerCase());
}).toList(growable: false)
..sort((a, b) => a.name
.toLowerCase()
.indexOf(lowercaseQuery)
.compareTo(b.name
.toLowerCase()
.indexOf(lowercaseQuery)));
} else {
return const <Contact>[];
}
},
chipBuilder: (context, state, profile) {
return InputChip(
key: ObjectKey(profile),
label: Text(profile.name),
avatar: CircleAvatar(
backgroundImage: NetworkImage(profile.imageUrl),
),
onDeleted: () => state.deleteChip(profile),
materialTapTargetSize:
MaterialTapTargetSize.shrinkWrap,
);
},
suggestionBuilder: (context, state, profile) {
return ListTile(
key: ObjectKey(profile),
leading: CircleAvatar(
backgroundImage: NetworkImage(profile.imageUrl),
),
title: Text(profile.name),
subtitle: Text(profile.email),
onTap: () => state.selectSuggestion(profile),
);
},
),
FormBuilderDateTimePicker(
attribute: "date",
// onChanged: _onChanged,
inputType: InputType.time,
decoration: InputDecoration(
labelText: "Appointment Time",
),
initialTime: TimeOfDay(hour: 8, minute: 0),
// initialValue: DateTime.now(),
// readonly: true,
),
FormBuilderDateRangePicker(
attribute: "date_range",
firstDate: DateTime(1970),
lastDate: DateTime(2030),
format: DateFormat("yyyy-MM-dd"),
onChanged: _onChanged,
decoration: InputDecoration(
labelText: "Date Range",
helperText: "Helper text",
hintText: "Hint text",
),
),
FormBuilderSlider(
attribute: "slider",
validators: [FormBuilderValidators.min(6)],
onChanged: _onChanged,
min: 0.0,
max: 10.0,
initialValue: 7.0,
divisions: 20,
activeColor: Colors.red,
inactiveColor: Colors.pink[100],
decoration: InputDecoration(
labelText: "Number of things",
),
),
FormBuilderRangeSlider(
attribute: "range_slider",
validators: [FormBuilderValidators.min(6)],
onChanged: _onChanged,
min: 0.0,
max: 100.0,
initialValue: RangeValues(4, 7),
divisions: 20,
activeColor: Colors.red,
inactiveColor: Colors.pink[100],
decoration: InputDecoration(
labelText: "Price Range",
),
),
FormBuilderCheckbox(
attribute: 'accept_terms',
initialValue: false,
onChanged: _onChanged,
leadingInput: true,
label: RichText(
text: TextSpan(
children: [
TextSpan(
text: 'I have read and agree to the ',
style: TextStyle(color: Colors.black),
),
TextSpan(
text: 'Terms and Conditions',
style: TextStyle(color: Colors.blue),
recognizer: TapGestureRecognizer()
..onTap = () {
print("launch url");
},
),
],
),
),
validators: [
FormBuilderValidators.requiredTrue(
errorText:
"You must accept terms and conditions to continue",
),
],
),
FormBuilderTextField(
attribute: "age",
decoration: InputDecoration(
labelText: "This value is passed along to the [Text.maxLines] attribute of the [Text] widget used to display the hint text.",
),
onChanged: _onChanged,
valueTransformer: (text) => num.tryParse(text),
validators: [
FormBuilderValidators.required(),
FormBuilderValidators.numeric(),
FormBuilderValidators.max(70),
],
keyboardType: TextInputType.number,
),
FormBuilderDropdown(
attribute: "gender",
decoration: InputDecoration(
labelText: "Gender",
),
// initialValue: 'Male',
allowClear: true,
hint: Text('Select Gender'),
validators: [FormBuilderValidators.required()],
items: genderOptions
.map((gender) => DropdownMenuItem(
value: gender,
child: Text('$gender'),
))
.toList(),
),
FormBuilderTypeAhead(
decoration: InputDecoration(
labelText: "Country",
),
attribute: 'country',
onChanged: _onChanged,
itemBuilder: (context, country) {
return ListTile(
title: Text(country),
);
},
controller: TextEditingController(text: ''),
initialValue: "Uganda",
suggestionsCallback: (query) {
if (query.length != 0) {
var lowercaseQuery = query.toLowerCase();
return allCountries.where((country) {
return country
.toLowerCase()
.contains(lowercaseQuery);
}).toList(growable: false)
..sort((a, b) => a
.toLowerCase()
.indexOf(lowercaseQuery)
.compareTo(
b.toLowerCase().indexOf(lowercaseQuery)));
} else {
return allCountries;
}
},
),
FormBuilderTypeAhead(
decoration: InputDecoration(
labelText: "Contact Person",
),
initialValue: contacts[0],
attribute: 'contact_person',
onChanged: _onChanged,
itemBuilder: (context, Contact contact) {
return ListTile(
title: Text(contact.name),
subtitle: Text(contact.email),
);
},
selectionToTextTransformer: (Contact c) => c.email,
suggestionsCallback: (query) {
if (query.length != 0) {
var lowercaseQuery = query.toLowerCase();
return contacts.where((contact) {
return contact.name
.toLowerCase()
.contains(lowercaseQuery);
}).toList(growable: false)
..sort((a, b) => a.name
.toLowerCase()
.indexOf(lowercaseQuery)
.compareTo(b.name
.toLowerCase()
.indexOf(lowercaseQuery)));
} else {
return contacts;
}
},
),
FormBuilderRadio(
decoration:
InputDecoration(labelText: 'My chosen language'),
attribute: "best_language",
leadingInput: true,
onChanged: _onChanged,
validators: [FormBuilderValidators.required()],
options:
["Dart", "Kotlin", "Java", "Swift", "Objective-C"]
.map((lang) => FormBuilderFieldOption(
value: lang,
child: Text('$lang'),
))
.toList(growable: false),
),
FormBuilderRadio(
decoration: InputDecoration(labelText: 'Pick a number'),
attribute: "number",
options: [
FormBuilderFieldOption(
value: 1,
child: Text('One'),
),
FormBuilderFieldOption(
value: 2,
child: Text('Two'),
),
FormBuilderFieldOption(
value: 3,
child: Text('Three'),
),
],
),
FormBuilderSegmentedControl(
decoration:
InputDecoration(labelText: "Movie Rating (Archer)"),
attribute: "movie_rating",
// textStyle: TextStyle(fontWeight: FontWeight.bold),
options: List.generate(5, (i) => i + 1)
.map((number) => FormBuilderFieldOption(
value: number,
child: Text(
"$number",
style: TextStyle(fontWeight: FontWeight.bold),
),
))
.toList(),
onChanged: _onChanged,
),
FormBuilderSwitch(
label: Text('I Accept the tems and conditions'),
attribute: "accept_terms_switch",
initialValue: true,
onChanged: _onChanged,
),
FormBuilderTouchSpin(
decoration: InputDecoration(labelText: "Stepper"),
attribute: "stepper",
initialValue: 10,
step: 1,
iconSize: 48.0,
addIcon: Icon(Icons.arrow_right),
subtractIcon: Icon(Icons.arrow_left),
),
FormBuilderRating(
decoration: InputDecoration(labelText: "Rate this form"),
attribute: "rate",
iconSize: 32.0,
initialValue: 1.0,
max: 5.0,
onChanged: _onChanged,
),
FormBuilderCheckboxList(
decoration: InputDecoration(
labelText: "The language of my people"),
attribute: "languages",
initialValue: ["Dart"],
leadingInput: true,
options: [
FormBuilderFieldOption(value: "Dart"),
FormBuilderFieldOption(value: "Kotlin"),
FormBuilderFieldOption(value: "Java"),
FormBuilderFieldOption(value: "Swift"),
FormBuilderFieldOption(value: "Objective-C"),
],
onChanged: _onChanged,
),
FormBuilderCustomField(
attribute: 'custom',
valueTransformer: (val) {
if (val == "Other")
return _specifyTextFieldKey.currentState.value;
return val;
},
formField: FormField(
builder: (FormFieldState<String> field) {
var languages = [
"English",
"Spanish",
"Somali",
"Other"
];
return InputDecorator(
decoration: InputDecoration(
labelText: "What's your preferred language?"),
child: Column(
children: languages
.map(
(lang) => Row(
children: <Widget>[
Radio<dynamic>(
value: lang,
groupValue: field.value,
onChanged: (dynamic value) {
field.didChange(lang);
},
),
lang != "Other"
? Text(lang)
: Expanded(
child: Row(
children: <Widget>[
Text(
lang,
),
SizedBox(width: 20),
Expanded(
child: TextFormField(
key:
_specifyTextFieldKey,
),
),
],
),
),
],
),
)
.toList(growable: false),
),
);
},
),
),
FormBuilderSignaturePad(
decoration: InputDecoration(labelText: "Signature"),
attribute: "signature",
// height: 250,
clearButtonText: "Start Over",
onChanged: _onChanged,
),
FormBuilderColorPickerField(
attribute: 'color',
// initialValue: Colors.red,
decoration: InputDecoration(
labelText: "Text",
),
onChanged: (val) {
print(val);
},
colorPickerType: ColorPickerType.ColorPicker,
validators: [
FormBuilderValidators.required(),
],
// readOnly: true,
),
FormBuilderField<String>(
attribute: 'form_builder_field',
// initialValue: 'One',
validators: [
FormBuilderValidators.required(),
],
builder: (FormFieldState<dynamic> field) {
return InputDecorator(
decoration: InputDecoration(
labelText: "Select option",
contentPadding:
EdgeInsets.only(top: 10.0, bottom: 0.0),
border: InputBorder.none,
errorText: field.errorText,
),
child: DropdownButton(
isExpanded: true,
items: ["One", "Two"].map((option) {
return DropdownMenuItem(
child: Text("$option"),
value: option,
);
}).toList(),
value: field.value,
onChanged: (value) {
field.didChange(value);
},
),
);
},
),
],
),
),
Row(
children: <Widget>[
Expanded(
child: MaterialButton(
color: Theme.of(context).accentColor,
child: Text(
"Submit",
style: TextStyle(color: Colors.white),
),
onPressed: () {
if (_fbKey.currentState.saveAndValidate()) {
print(_fbKey.currentState.value);
} else {
print(_fbKey.currentState.value);
print("validation failed");
}
},
),
),
SizedBox(
width: 20,
),
Expanded(
child: MaterialButton(
color: Theme.of(context).accentColor,
child: Text(
"Reset",
style: TextStyle(color: Colors.white),
),
onPressed: () {
_fbKey.currentState.reset();
},
),
),
],
),
],
),
),
),
);
}
}Metadata
2339
likes
0
pub points
99%
popularity
Publisher
flutterformbuilderecosystem.com
Metadata
Package to build Material Form with fields like TextField, DropDown, Switches etc. with ability to create custom FormFields and composability and reuse validation functions.
Repository (GitHub)
View/report issues
License
unknown (LICENSE)
Dependencies
date_range_picker, datetime_picker_formfield, flutter, flutter_chips_input, flutter_colorpicker, flutter_touch_spin, flutter_typeahead, image_picker, intl, rating_bar, validators
