Add concepts project for day 80

This commit is contained in:
CypherPoet 2020-01-08 20:03:53 -06:00
parent f3517e20d5
commit 99ae50893d
16 changed files with 906 additions and 0 deletions

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//
// AppDelegate.swift
// Project16Concepts
//
// Created by Brian Sipple on 1/8/20.
// Copyright © 2020 CypherPoet. All rights reserved.
//
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
return true
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}

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//
// SceneDelegate.swift
// Project16Concepts
//
// Created by Brian Sipple on 1/8/20.
// Copyright © 2020 CypherPoet. All rights reserved.
//
import UIKit
import SwiftUI
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
// Use a UIHostingController as window root view controller.
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
// Create the SwiftUI view that provides the window contents.
let entryView = RootView()
window.rootViewController = UIHostingController(rootView: entryView)
self.window = window
window.makeKeyAndVisible()
}
}
func sceneDidDisconnect(_ scene: UIScene) {
// Called as the scene is being released by the system.
// This occurs shortly after the scene enters the background, or when its session is discarded.
// Release any resources associated with this scene that can be re-created the next time the scene connects.
// The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
}
func sceneDidBecomeActive(_ scene: UIScene) {
// Called when the scene has moved from an inactive state to an active state.
// Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
}
func sceneWillResignActive(_ scene: UIScene) {
// Called when the scene will move from an active state to an inactive state.
// This may occur due to temporary interruptions (ex. an incoming phone call).
}
func sceneWillEnterForeground(_ scene: UIScene) {
// Called as the scene transitions from the background to the foreground.
// Use this method to undo the changes made on entering the background.
}
func sceneDidEnterBackground(_ scene: UIScene) {
// Called as the scene transitions from the foreground to the background.
// Use this method to save data, release shared resources, and store enough scene-specific state information
// to restore the scene back to its current state.
}
}

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},
{
"idiom" : "iphone",
"size" : "20x20",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "60x60",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "60x60",
"scale" : "3x"
},
{
"idiom" : "ipad",
"size" : "20x20",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "20x20",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "76x76",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "76x76",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "83.5x83.5",
"scale" : "2x"
},
{
"idiom" : "ios-marketing",
"size" : "1024x1024",
"scale" : "1x"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}

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{
"info" : {
"version" : 1,
"author" : "xcode"
}
}

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{
"images" : [
{
"idiom" : "universal",
"scale" : "1x"
},
{
"idiom" : "universal",
"scale" : "2x"
},
{
"idiom" : "universal",
"filename" : "example@3x.png",
"scale" : "3x"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}

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//
// ImageInterpolationControlExample.swift
// Project16Concepts
//
// Created by CypherPoet on 1/8/20.
//
//
import SwiftUI
struct ImageInterpolationControlExample: View {
}
// MARK: - Body
extension ImageInterpolationControlExample {
var body: some View {
VStack {
// Take a close look at the edges of the colors: they look jagged, but also blurry.
// The jagged part comes from the original image because its only 66x92 pixels in size,
// but the blurry part is where SwiftUI is trying to blend the pixels as they
// are stretched to make the stretching less obvious.
// Often this blending works great, but it struggles here because the
// source picture is small (and therefore needs a lot of blending to
// be shown at the size we want), and also because the image has
// lots of solid colors so the blended pixels stand out quite obviously.
Image("alien")
.resizable()
.scaledToFit()
.frame(maxWidth: .infinity, maxHeight: .infinity)
.background(Color.black)
.edgesIgnoringSafeArea(.all)
// For situations just like the one above, SwiftUI gives us the
// interpolation() modifier that lets us control how pixel blending
// is applied.
Image("alien")
.interpolation(.none)
.resizable()
.scaledToFit()
.frame(maxWidth: .infinity, maxHeight: .infinity)
.background(Color.black)
.edgesIgnoringSafeArea(.all)
}
}
}
// MARK: - Computeds
extension ImageInterpolationControlExample {
}
// MARK: - View Variables
extension ImageInterpolationControlExample {
}
// MARK: - Preview
struct ImageInterpolationControlExample_Previews: PreviewProvider {
static var previews: some View {
ImageInterpolationControlExample()
}
}

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//
// ManualObservableObjectExample.swift
// Project16Concepts
//
// Created by CypherPoet on 1/8/20.
//
//
import SwiftUI
struct ManualObservableObjectExample: View {
@ObservedObject var viewModel = ViewModel()
}
// MARK: - Body
extension ManualObservableObjectExample {
var body: some View {
Text("The current value is: \(viewModel.currentValue)")
}
}
// MARK: - ViewModel
extension ManualObservableObjectExample {
public final class ViewModel: ObservableObject {
// @Published var currentValue = 0
var currentValue = 0 {
willSet {
self.objectWillChange.send()
}
}
init() {
performUpdate()
}
func performUpdate() {
DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
self.currentValue += 1
if self.currentValue < 10 {
self.performUpdate()
}
}
}
}
}
// MARK: - Preview
struct ManualObservableObjectExample_Previews: PreviewProvider {
static var previews: some View {
ManualObservableObjectExample()
}
}

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//
// RootView.swift
// Project16Concepts
//
// Created by CypherPoet on 1/8/20.
//
//
import SwiftUI
struct RootView: View {
}
// MARK: - Body
extension RootView {
var body: some View {
NavigationView {
List {
NavigationLink(destination: ManualObservableObjectExample()) {
Text("Manual ObservableObject Change Publishing")
}
NavigationLink(destination: ImageInterpolationControlExample()) {
Text("Controlling Image Interpolation")
}
}
.navigationBarTitle("Project 16 Concepts")
}
}
}
// MARK: - Computeds
extension RootView {
}
// MARK: - View Variables
extension RootView {
}
// MARK: - Preview
struct RootView_Previews: PreviewProvider {
static var previews: some View {
RootView()
}
}

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