Introducing SwiftUI: Building Your First App ・Rooms 解決編

# WWCD2019のセッション204を再現しての話 ? すべてが解決しました

> 解決方法は ? 解決できなかったのは私がSwiftUIについて無知であったから ?
しかし、解決しました、良かった、良かった

少し解説 ?

- Roomsで実機やsimulatorで作動させるためには ? SceneDelegate.swiftに秘密がありました
- 私は「let contentView = ContentView()」で呼んでいた
- 苦心の結果 ? 「let contentView = ContentView(store: RoomStore(rooms: testData))」で呼んであげればOKです

# コードを見た方が早い ?
能書きはここまで、以下コード

# SceneDelegate.swift

```SceneDelegate.swift

//
//  SceneDelegate.swift
//  Rooms
//
//  Created by 福田 敏一 on 2019/10/30.
//  Copyright © 2019 株式会社パパスサン. 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).
        // Create the SwiftUI view that provides the window contents.
//let contentView = ContentView()
        let contentView = ContentView(store: RoomStore(rooms: testData))

        // Use a UIHostingController as window root view controller.
        if let windowScene = scene as? UIWindowScene {
            let window = UIWindow(windowScene: windowScene)
            window.rootViewController = UIHostingController(rootView: contentView)
            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.
    }


}

```

ここまで

# 私の感想

> 私の感想ですが ?
なんだかね ? Appleの動画にその部分があったのかね ? 私が見落としをしていたのか ? いや違う ? 私が無知なだけでした、SwiftUIのCanvasはこれから勉強を深めたいと思います