aheze

//
//  HelloWorldApp.swift
//  HelloWorld
//
//  Created by Zheng on 6/22/20.
//

import SwiftUI

@main

aheze

struct ContentView: View {
    var body: some View {
        Text("Hello world!").padding()
    }
}

aheze

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    ...
    lots more code
    ...
    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.
        print("scene is now active!")
    }
    func sceneWillResignActive(_ scene: UIScene) {

aheze

@main
struct HelloWorldApp: App {
    @Environment(\.scenePhase) private var scenePhase
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .onChange(of: scenePhase) { (newScenePhase) in
            switch newScenePhase {
            case .active:

aheze

//
//  HelloWorldApp.swift
//  HelloWorld
//
//  Created by Zheng on 6/22/20.
//

import SwiftUI

@main

aheze

import SwiftUI

struct ContentView: View {
    @Binding var cameFromUrl: URL
    
    var body: some View {
        Text("Hello World! Came from url: \(cameFromUrl)")
    }
}

aheze

import SwiftUI

struct ContentView: View {
    @Binding var cameFromUrl: URL
    @State var orientation = UIDevice.current.orientation
    let orientationChanged = NotificationCenter.default.publisher(for: UIDevice.orientationDidChangeNotification)
            .makeConnectable()
            .autoconnect()
    
    var body: some View {

aheze

struct ContentView: View {
    var body: some View {
        let symbol = Image(systemName: "books.vertical")
        return Text("Here is a symbol \(symbol) embedded in a string!")
    }
}

aheze

import SwiftUI

class AppDelegate: NSObject, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
        if let shortcutItem = launchOptions?[UIApplication.LaunchOptionsKey.shortcutItem] as? UIApplicationShortcutItem {
            if shortcutItem.type == "com.example.ExampleApp.exampleAction" {
                print("Action Pressed!")
            }
        }
        return true

aheze

import SwiftUI
class AppDelegate: NSObject, UIApplicationDelegate {
    @Published var shortcutItemType: String?
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
        if let shortcutItem = launchOptions?[.shortcutItem] as? UIApplicationShortcutItem {
            if shortcutItem.type == "com.example.ExampleApp.exampleAction" {
                shortcutItemType = shortcutItem.type
            }
        }
        return true