av

// ...
  
class _RootState extends State<RootWidget> {
  TenderApiProvider tenderApi = TenderApiProvider();
  AppState state = AppState();

  Future init() async {
    return Future.wait(<Future>[
      tenderApi.init(), // fetch and store token
      Future.delayed(const Duration(milliseconds: 2000)) // Let user see the splash for couple of seconds

av

import 'service.dart';

class HomeScreen extends StatelessWidget {
  @override
  build(BuildContext context) {
    // When service will notify its listeners, we'll be automatically
    // rebuilt
    List<Model> items = Provider.of<Service>(context).items;

    return Scaffold(

av

const puppeteer = require('puppeteer');
const alphabet = 'poiuytrewqlkjhgfdsamnbvcxz'.split('');

(async () => {
  let results = {};
  const browser = await puppeteer.launch({args: ['--no-sandbox', '--disable-setuid-sandbox']});
  const page = await browser.newPage();

  await page.setViewport({ width: 1024, height: 768 });
  

av

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Grid gaps',
      theme: ThemeData(

av

// ...
var codec = await instantiateImageCodec(byteData);
var frameInfo = await codec.getNextFrame();
var img = frameInfo.image;
// ...

av

import 'dart:async';
import 'dart:typed_data';
import 'dart:ui' as ui;
import 'package:flutter/material.dart';

void main() async => runApp(MaterialApp(home: Root()));

/// Waits till [ui.Image] is generated and renders
/// it using [CustomPaint] to render it. Allows use of [MediaQuery]
class Root extends StatelessWidget {

av

/// Very useful package which is part of Flutter.
/// Also contains a useful functions, such as [mix] and [smoothStep].
import 'package:vector_math/vector_math.dart';

/// ...

/// Main area of interest, this function will
/// return color for each particular color on our [ui.Image]
int generatePixel(int x, int y, Size size) {
  /// Compute unified vector, values of its components

av

// ...

/// White dots each 20 pixels
if (x % 20 == 0 && y % 20 == 0) {
  return 0xffffffff;
}

// ...

av

/// Takes a unit Vector3 (all values from 0 to 1) 
/// and returns an int representing color in RGBA format
/// Vector3(0, 1, 0) -> 0xff00ff00
int toColorInt(Vector3 vec) {
  int r = (vec.r * 255).toInt();
  int g = (vec.g * 255).toInt();
  int b = (vec.b * 255).toInt();

  return (b << 0) | (g << 8) | (r << 16) | (255 << 32);
}

av

/// Main area of interest, this function will
/// return color for each particular color on our [ui.Image]
int generatePixel(int x, int y, Size size) {
  /// Compute unified vector, values of its components
  /// will be between 0 and 1
  var uv = Vector2(x / size.width, y / size.height);

  /// [Vector2.xxx] is a getter which returns [Vector3]
  /// with first component of given [Vector2], uv in our case.
  return toColorInt(uv.xxx);