How to hide the keyboard with onTap the screen? - flutter

Question

While using the text fields in flutter,
how we can able to hide the keyboard after its use just by tapping on the screen.

Answer 1

We can use FocusNode
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
FocusScope.of(context).requestFocus(new FocusNode());
},
child: MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
),
);
}
}

Answer 2

We can make use of FocusScope.of(context).unfocus(); to hide the keyboard. Wrap entire Scaffold with Gesture detector and on tap make use of FocusScope.of(context).unfocus(); to hide the keyboard on tap of any part of the screen.
Please refer below working code.
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
TextEditingController _controller = new TextEditingController();
#override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
FocusScope.of(context).unfocus(); // To hide the keyboard
},
child: Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: TextFormField(
controller: _controller,
decoration: new InputDecoration(labelText: 'Example Text'),
),
),
);
}
}