arcin

Flutter

A quick cheatsheet of useful snippet for Flutter

Widget

A widget is the basic type of controller in Flutter Material. There are two type of basic Widget we can extend our classes: StatefulWidget or StatelessWidget.

Stateful

StatefulWidget are all the widget that interally have a dynamic value that can change during usage. It can receive an input value in the constructor or reference to functions. You need to create two classes like:

arcin

/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;

arcin

class BoggleBoard
  attr_reader :board
  def initialize(board)
    @board = board
  end

  def create_word(*coords)
    coords.map { |coord| @board[coord.first][coord.last]}.join("")
  end

arcin

# Wrong way to define a variable.

alphabet = 1234567890

# Correct way to define a variable.

my_name = "Charles" 

arcin

# Steps to defining a variable.
# 1. Give it a name
# 2. Point to something using the equal sign.

secret = 4815162342

arcin

puts "Ice, Bank, Mice, Elf"
puts "Ice, Bank, Mice, Elf"
puts "Ice, Bank, Mice, Elf"

# Ice, Bank, Mice, Elf
# Ice, Bank, Mice, Elf
# Ice, Bank, Mice, Elf
# [Finished in 0.0s]

arcin

# this is a test
Class Test
  def initialize(test)
    @test = test
  end
end