Flutter layout not updated when Large iOS custom keyboard is dismissed. #99951
Description
Steps to Reproduce
Keyboard dismiss is not handled properly for iOS custom keyboards. If you look at second video, it seems like the issue happens if the custom keyboard height is too large when dismissed.
Precondition: Download custom keyboards: Bitmoji, Slyder
- Copy paste main.dart to new project
- Follow steps
custom_keyboard_layout_issue.MP4 |
RPReplay_Final1646969495.MP4 |
Expected results: Lays out widgets properly when keyboard is dismissed
Actual results: It doesn't listen to keyboard dismiss when custom keyboard is too large.
Code sample
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
backgroundColor: Colors.white,
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Container(
color: Colors.blue.shade100,
child: Column(
children: [
const SizedBox(height: 48),
const Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Text(
'1. Change iOS keyboard to Bitmoji or Slyder keyboard.\n'
'2. Tap on the button below.\n'
'3. Navigate back to previous route.\n'
'4. Check that shaded blue(Scaffold.body) not covering entire screen.\n'
'5. Compare the behavior with OS keyboard',
style: TextStyle(fontSize: 20),
),
),
const TextField(autofocus: true),
const Spacer(),
ElevatedButton(
onPressed: () {
FocusScope.of(context).unfocus();
Navigator.of(context).push(CupertinoPageRoute(
builder: (context) {
return const MyHomePage(title: 'Another Page');
},
));
},
child: const Text('Hello', style: TextStyle(fontSize: 30)),
)
],
),
),
bottomNavigationBar: BottomNavigationBar(
items: [Icons.abc, Icons.train]
.map((e) => BottomNavigationBarItem(icon: Icon(e), label: 'hi'))
.toList(),
),
);
}
}
Logs