dhk_counter 0.0.1 dhk_counter: ^0.0.1 copied to clipboard
A package that allows to add a counter to the application
dhk_counter #
A package that allows to add a counter to the application
Getting Started #
To use this plugin, add 'dhk_counter' as a dependency in your pubspec.yaml file.
###Example
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: HomeScreen(),
);
}
}
class HomeScreen extends StatefulWidget {
@override
HomeScreenState createState() => HomeScreenState();
}
class HomeScreenState extends State<HomeScreen> {
String _name;
int _age;
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Form(
key: _formKey,
child: Padding(
padding: EdgeInsets.all(15.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text("Please enter you name and age"),
TextFormField(
autovalidate: false,
onSaved: (value) => this._name = value,
validator: (value) {
if (value.length < 3)
return 'A minimum of 3 characters required';
},
),
CounterFormField(
autoValidate: false,
onSaved: (value) => this._age = value,
validator: (value) {
if (value < 0) return 'value cannot be negative';
},
),
RaisedButton(
child: Text("Submit"),
onPressed: () {
if (this._formKey.currentState.validate()) {
setState(() {
this._formKey.currentState.save();
});
}
},
),
SizedBox(
height: 50.0,
),
Text('${this._name} is ${this._age} years old'),
],
),
),
),
),
);
}
}