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Examples/UINote/SwiftUINote/AppDelegate.swift

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+//
+//  AppDelegate.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 04/06/2019.
+//  Copyright © 2019 we'd. 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
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+        NoteData.shared.save()
+    }
+
+    // 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.
+    }
+
+
+}
+

Examples/UINote/SwiftUINote/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "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"
+  }
+}

Examples/UINote/SwiftUINote/Assets.xcassets/Contents.json

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

Examples/UINote/SwiftUINote/Assets.xcassets/nomad.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "nomad.jpg",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/UINote/SwiftUINote/Base.lproj/LaunchScreen.storyboard

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

Examples/UINote/SwiftUINote/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UILaunchStoryboardName</key>
+					<string>LaunchScreen</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

Examples/UINote/SwiftUINote/Models/Note.swift

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+//
+//  Note.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+
+struct Note: Hashable, Codable, Identifiable {
+    let id = UUID()
+    var text: String
+    var date = Date()
+}

Examples/UINote/SwiftUINote/Models/NoteData.swift

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+//
+//  NoteData.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+
+class NoteData {
+    
+    static let shared = NoteData()
+    
+    var notes: [Note] = [
+        Note(text: "New Note"),
+        Note(text: "Another Note")
+    ]
+    
+    private init() { load() }
+    
+    static func dateToString(date: Date) -> String {
+        let formatter = DateFormatter()
+        formatter.dateStyle = .medium
+        return formatter.string(from: date)
+    }
+    
+    func save() {
+        UserDefaults.standard.set(try? PropertyListEncoder().encode(notes), forKey: "notes")
+        debugPrint("save called")
+    }
+    
+    func load() {
+        if let data = UserDefaults.standard.object(forKey: "notes") as? Data {
+            self.notes = try! PropertyListDecoder().decode([Note].self, from: data)
+        }
+    }
+}

Examples/UINote/SwiftUINote/Models/UserData.swift

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+//
+//  UserData.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+import Combine
+
+final class UserData: BindableObject {
+    let didChange = PassthroughSubject<UserData, Never>()
+    
+    var notes = NoteData.shared.notes {
+        didSet {
+            didChange.send(self)
+            NoteData.shared.notes = notes
+        }
+    }
+}

Examples/UINote/SwiftUINote/Preview Content/Preview Assets.xcassets/Contents.json

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

Examples/UINote/SwiftUINote/SceneDelegate.swift

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+//
+//  SceneDelegate.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 04/06/2019.
+//  Copyright © 2019 we'd. 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
+        let window = UIWindow(frame: UIScreen.main.bounds)
+        window.rootViewController = UIHostingController(rootView: NoteList()
+            .environmentObject(UserData()))
+        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.
+    }
+
+
+}
+

Examples/UINote/SwiftUINote/Views/NoteDetail.swift

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+//
+//  NoteDetail.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+
+struct NoteDetail : View {
+    @EnvironmentObject var userData: UserData
+    var note: Note
+    private var text: State<String>
+    
+    init(note: Note) {
+        self.note = note
+        self.text = .init(initialValue: note.text)
+    }
+    
+    var noteIndex: Int {
+        userData.notes.firstIndex(where: { $0.id == note.id })!
+    }
+    
+    var body: some View {
+        VStack {
+            TextField(self.text.binding,
+                      placeholder: nil,
+                      onEditingChanged: { _ in self.updateNote()},
+                      onCommit: {})
+            Spacer()
+        }
+        .padding()
+        .navigationBarTitle(
+            Text(NoteData.dateToString(date: note.date)), displayMode: .inline)
+    }
+    
+    private func updateNote() {
+        self.userData.notes[noteIndex].text = self.text.value
+    }
+}
+
+#if DEBUG
+struct NoteDetail_Previews : PreviewProvider {
+    static var previews: some View {
+        NoteDetail(note: NoteData.shared.notes[0])
+            .environmentObject(UserData())
+    }
+}
+#endif

Examples/UINote/SwiftUINote/Views/NoteList.swift

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+//
+//  NoteList.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+
+struct NoteList : View {
+    @EnvironmentObject var userData: UserData
+    
+    var body: some View {
+        NavigationView {
+            List(userData.notes) { note in
+                NavigationButton(destination: NoteDetail(note: note)) {
+                    NoteRow(note: note)
+                }
+            }
+                .navigationBarTitle(Text("Notes"), displayMode: .large)
+                .navigationBarItems(trailing: Button(action: self.createNote, label: { Text("New") }))
+        }
+    }
+    
+    private func createNote() {
+        let newNote = Note(text: "")
+        self.userData.notes.insert(newNote, at: 0)
+    }
+}
+
+#if DEBUG
+struct NoteList_Previews : PreviewProvider {
+    static var previews: some View {
+        ForEach(["iPhone SE", "iPhone XS Max"].identified(by: \.self)) { deviceName in
+            NoteList()
+                .environmentObject(UserData())
+                .previewDevice(PreviewDevice(rawValue: deviceName))
+                .previewDisplayName(deviceName)
+        }
+    }
+}
+#endif

Examples/UINote/SwiftUINote/Views/NoteRow.swift

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+//
+//  NoteRow.swift
+//  SwiftUINote
+//
+//  Created by chanju Jeon on 05/06/2019.
+//  Copyright © 2019 we'd. All rights reserved.
+//
+
+import SwiftUI
+
+struct NoteRow : View {
+    var note: Note
+    
+    var body: some View {
+        HStack {
+            Text(note.text)
+        }
+    }
+}
+
+#if DEBUG
+struct NoteRow_Previews : PreviewProvider {
+    static var previews: some View {
+        Group {
+            NoteRow(note: Note(text: "New Note"))
+            NoteRow(note: Note(text: "Another Note"))
+        }
+        .previewLayout(.fixed(width: 300, height: 50))
+    }
+}
+#endif