Dragging the iOS text selection handles is jumpy #106703
Description
Dragging the handles horizontally in a multi-line text field on iOS is really inaccurate and not smooth.
This definitely didn't happen before, so I've marked it as a regression. Android doesn't seem to have the same problem. It also doesn't seem to happen on the first line of text.
Steps to reproduce
- Run any app with a multiline text field on iOS, such as the one below.
- Enter a few lines of text.
- Select some text.
- Drag either handle in a horizontal direction back and forth a few times
Expected: The selection and handle follow the pointer smoothly.
Actual: The selection and handle pause and jump around.
Code
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatelessWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextField(minLines: 1, maxLines: 4),
],
),
),
);
}
}CC @antholeole who discovered this.