flutter_form_validator

Description:

flutter form validator

flutter_form_validator #
This package contains code for flutter form validation widgets.
How to use #

TextFormField(
validator: ValidationBuilder().email().required().maxLength(50).build(),
decoration: InputDecoration(labelText: 'Email'),
),
SizedBox(height: 30),
TextFormField(
validator:
ValidationBuilder().minLength(5).maxLength(50).build(),
decoration: InputDecoration(
labelText: 'Name',
helperText: 'Min length: 5, max length: 50',
),
),
],
),
),
),

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class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
GlobalKey<FormState> _form = GlobalKey<FormState>();

void _validate() {
_form.currentState.validate();
}

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Example'),
),
body: Form(
key: _form,
child: SingleChildScrollView(
padding: const EdgeInsets.all(15),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextFormField(
validator: ValidationBuilder().email().required().maxLength(50).build(),
decoration: InputDecoration(labelText: 'Email'),
),
SizedBox(height: 30),
TextFormField(
validator:
ValidationBuilder().minLength(5).maxLength(50).build(),
decoration: InputDecoration(
labelText: 'Name',
helperText: 'Min length: 5, max length: 50',
),
),
],
),
),
),
floatingActionButton: FloatingActionButton(
onPressed: _validate,
tooltip: 'okay',
child: Icon(Icons.done),
),
);
}
}


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