mutant0113

import 'dart:async';
import 'dart:isolate';

void main() async {
  final receivePort = ReceivePort();
  final newIsolate = await Isolate.spawn(createNewIsolate, receivePort.sendPort);
  final message = await receivePort.first; // Receive the result.
  print("Main Isolate: $message"); // Print "Main Isolate: Hello New Isolate"
}
void createNewIsolate(SendPort sendPort) {

mutant0113

import 'dart:async';
import 'dart:isolate';

void main() async {
  // 1. Create the main receive port.
  final mainReceivePort = ReceivePort();
  // 2. Spawn an isolate with the main send port.
  final newIsolate = await Isolate.spawn(createNewIsolate, mainReceivePort.sendPort);

  mainReceivePort.listen((message) {

mutant0113

💻 My Mac Setup

⚙️ System Settings

• Three finger drag
• Hide recent apps in dock
  • System Preferences -> Dock & Menu Bar -> Uncheck "Show recent applications in Dock"

---

🖥 Terminal Setup

mutant0113

{
  "average_frame_build_time_millis": 6.7094482758620675,
  "90th_percentile_frame_build_time_millis": 16.72,
  "99th_percentile_frame_build_time_millis": 32.135,
  "worst_frame_build_time_millis": 32.135,
  "missed_frame_build_budget_count": 4,
  "average_frame_rasterizer_time_millis": 3.961793103448275,
  "90th_percentile_frame_rasterizer_time_millis": 4.718,
  "99th_percentile_frame_rasterizer_time_millis": 7.026,
  "worst_frame_rasterizer_time_millis": 7.026,

mutant0113

// Record the performance of the app.
await binding.traceAction(
  () async {
    // Scroll until the item to be found appears.
    await tester.scrollUntilVisible(
      itemFinder,
      500.0,
      scrollable: listFinder,
    );
  },

mutant0113

import 'dart:math';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override

mutant0113

import 'dart:math';

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) => MaterialApp(

mutant0113

import 'dart:math';

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) => MaterialApp(

mutant0113

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {

mutant0113

class _PageAState extends State<PageA> {
  ...
  
  // A widget for page transition between the `pageA` and `pageB` after tapping the `FAB button`.
  Widget get _pageTransition {
    // Dismiss ripple widget if `_pageTransitionRect` is null.
    if (_pageTransitionRect == null) {
      return Container();
    }