nhatlee

import SwiftUI
import PlaygroundSupport

struct iPod: View {
    var body: some View {
        VStack(spacing: 40) {
            Screen()
            ClickWheel()
            Spacer()
        }

nhatlee

// Original article here: https://www.fivestars.blog/code/swiftui-hierarchy-list.html

import SwiftUI

struct FileItem: Identifiable {
  let name: String
  var children: [FileItem]?

  var id: String { name }

nhatlee

libdispatch efficiency tips

I suspect most developers are using the libdispatch inefficiently due to the way it was presented to us at the time it was introduced and for many years after that, and due to the confusing documentation and API. I realized this after reading the 'concurrency' discussion on the swift-evolution mailing-list, in particular the messages from Pierre Habouzit (who is the libdispatch maintainer at Apple) are quite enlightening (and you can also find many tweets from him on the subject).

• https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170828/date.html
• https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170904/date.html
• https://twitter.com/pedantcoder

My take-aways are:

nhatlee

struct Contact: Decodable, CustomStringConvertible {
    var id: String
    @NestedKey
    var firstname: String
    @NestedKey
    var lastname: String
    @NestedKey
    var address: String

    enum CodingKeys: String, NestableCodingKey {

nhatlee

//------------------------------------------------------------------------
// The SwiftUI Lab: Advanced SwiftUI Animations
// https://swiftui-lab.com/swiftui-animations-part1 (Animating Paths)
// https://swiftui-lab.com/swiftui-animations-part2 (GeometryEffect)
// https://swiftui-lab.com/swiftui-animations-part3 (AnimatableModifier)
//------------------------------------------------------------------------
import SwiftUI

struct ContentView: View {
    

nhatlee

import Foundation

class StreamReader {
    let encoding: String.Encoding
    let chunkSize: Int
    let fileHandle: FileHandle
    var buffer: Data
    let delimPattern : Data
    var isAtEOF: Bool = false
    

nhatlee

-(UIImage*)mmg_imageScaledToFitSize:(CGSize)fitSize
{
	// Create a vImage_Buffer from the CGImage
	CGImageRef sourceRef = self.CGImage;
	vImage_Buffer srcBuffer;
	vImage_CGImageFormat format = {
		.bitsPerComponent = 8,
		.bitsPerPixel = 32,
		.colorSpace = NULL,
		.bitmapInfo = (CGBitmapInfo)kCGImageAlphaFirst,

nhatlee

protocol DogBreed {
    typealias Level = Int
    
    var breedName: String { get set }
    var size: Level { get set }
    var health: Level { get set }
    var adaptability: Level { get set }
    var intelligence: Level { get set }
    var dogType: DogType { get set }

nhatlee

import UIKit
import RxSwift
import RxCocoa

let requiredUserNameLength = 5
let requiredPasswordLength = 5

let limitUserNameLength = 20

class ValidationViewController: UIViewController {

nhatlee

// Playground - noun: a place where people can play

import Cocoa

enum Wildcard : NilLiteralConvertible {
  case Single
  case FromBeginning
  case ToEnd
  case Range(Int)
  case Literal(Int)