Disable Flutter's "red screen of death"

You could override ErrorWidget.builder method.
I'm resolved this.

・Example code.

void main() {    ErrorWidget.builder = (FlutterErrorDetails details) => Container();    ...}

・Default code

static ErrorWidgetBuilder builder = _defaultErrorWidgetBuilder;

I hoped its your help.

2019 12 21 updated

Or Change ErrorWidget backgroundColor and textStyle.

・Example code

import 'dart:ui' as ui;void main() {    RenderErrorBox.backgroundColor = Colors.transparent;    RenderErrorBox.textStyle = ui.TextStyle(color: Colors.transparent);}

You can try to use Catcher which is a free flutter plugin which catches and handles errors in Flutter application. Catcher offers multiple report modes and handlers to cooperate with Flutter applications

just add catcher in your pubspec.yaml

catcher: ^0.1.2

For more info about catcher https://pub.dartlang.org/packages/catcher

A nice tutorial to get started with catcher https://medium.com/flutter-community/handling-flutter-errors-with-catcher-efce74397862

void main() { bool isDev = true;          ErrorWidget.builder = (FlutterErrorDetails errorDetails) {            return AppErrorWidget(              errorDetails: errorDetails,              isDev: isDev,            );          };}              class AppErrorWidget extends StatelessWidget {      final FlutterErrorDetails errorDetails;      final bool isDev;      const AppErrorWidget({        Key key,        @required this.errorDetails,        this.isDev = false,      }) : super(key: key);      @override      Widget build(BuildContext context) {        return Material(          child: SafeArea(            child: Container(              decoration: BoxDecoration(border: Border.all(color: Colors.red)),              child: ListView(                children: <Widget>[                  Container(                    height: 20,                  ),                  Text(isDev ? errorDetails.toString() : '')                ],              ),            ),          ),        );      }    }