mattyoung

Dear Steve,

It's a impossible task for Apple and the likes to maintain a 
store of device decryption keys.Where should these keys be stored? 
China will not trust the US to hand over the keys. So China
will demand Apple to store the keys within its border. 
According to the language of "manufactured… and sold", then 
this means China can demand Apple to store all the keys 
inside China and be readily available to the government 
without any warrant as netizens of China have no privacy rights.

mattyoung

struct Person {
    let firstName: String
    let lastName: String
    let score: Int
}

var people: [Person] = [
    Person(
        firstName: "Calvin",
        lastName: "Newton",

mattyoung

import Foundation
  
struct Person: Codable {
    let name: String
}


let person = Person(name: "Paul")

if #available(macOS 10.12, *) {

mattyoung

import QuartzCore
  

// make an Int array of random elements
let array = Array((1...2000).map { _ in Int(arc4random_uniform(2000)) } )

let loopCount = 100_000

// closure in a variable
let compareGreater: (Int, Int) -> Bool  = { $0 >  $1 }

mattyoung

var people: [[String:Any]] = [
    [
        "firstName": "Calvin",
        "lastName": "Newton",
        "score": 13
    ],
    [
        "firstName": "Garry",
        "lastName": "Mckenzie",
        "score": 23

mattyoung

import SwiftUI

struct AnimatedSlashSpeakerDemo: View {
    // 0 mute is off, 1 mute is on
    @State private var muteState: CGFloat = 0
    private static let imageDimension: CGFloat = 250
    
    var body: some View {
        ZStack {
            LinearGradient(gradient: Gradient(colors: [.pink, .orange, .blue, .red, .green, .purple, .yellow]), startPoint: .topLeading, endPoint: .bottomTrailing)

mattyoung

// WARNING: this only works in Xcode 11.4 beta 2
// .minimumScaleFactor() is broken before and after

import SwiftUI

struct BigText: View {
    private static let fontSize: CGFloat = 120
    
    @State private var margin: CGFloat = 0
    

mattyoung

import SwiftUI


struct CheckboxToggleStyle: ToggleStyle {
    @Environment (\.isEnabled) var isEnabled
    
    func makeBody(configuration: Configuration) -> some View {
        HStack {
            configuration.label
            Image(systemName: configuration.isOn ? "checkmark.square" : "square")

mattyoung

import SwiftUI

struct UndoRightToLeftMirroring: ViewModifier {
//    @Environment(\.layoutDirection) var layoutDirection

//    @ViewBuilder
    func body(content: Content) -> some View {
        content     // !!! Just do this undo the mirroring
//        VStack {
//            if layoutDirection == .leftToRight {

mattyoung

import SwiftUI

struct NavViewFormLabelRightJustified: View {
    @State private var width = 25
    @State private var height = 50
    @State private var updatePeriod: Double = 1.0
    
    var body: some View {
        NavigationView {
            Form {