cloudkit-public-settings | ios-app-dev-memo

CloudKit 側の DDL

CloudKit Dashboard でスキーマ設定:

• CloudKit Dashboard (https://icloud.developer.apple.com/dashboard/) で
  • public データベースに Item レコードタイプを作成。
    • Item レコードのフィールド:
      • title (String)
      • description (String)

登録側 (管理者アプリ)

swift

import SwiftUI
import CloudKit

struct ContentView: View {
	@State private var title = ""
	@State private var description = ""
	@State private var message = ""

	var body: some View {
		VStack {
			TextField("タイトル", text: $title)
				.textFieldStyle(RoundedBorderTextFieldStyle())
				.padding()

			TextField("説明", text: $description)
				.textFieldStyle(RoundedBorderTextFieldStyle())
				.padding()

			Button("データ追加") {
				addItem(title: title, description: description)
			}
			.padding()
			
			Text(message)
				.padding()
		}
	}

	func addItem(title: String, description: String) {
		let record = CKRecord(recordType: "Item")
		record["title"] = title
		record["description"] = description

		// let container = CKContainer.default()
		let container = CKContainer(identifier: "iCloud.com.sugoi-domain.SugoiAPp")
		let publicDB = container.publicCloudDatabase
		publicDB.save(record) { record, error in
			DispatchQueue.main.async {
				if let error = error {
					message = "エラー: \(error.localizedDescription)"
				} else {
					message = "追加成功"
				}
			}
		}
	}
}

参照側 (ユーザ向けアプリ)

swift

import SwiftUI
import CloudKit

struct Item: Identifiable {
	let id = UUID()
	let title: String
	let description: String
}

struct ContentView: View {
	@State private var items: [Item] = []

	var body: some View {
		NavigationView {
			List(items) { item in
				VStack(alignment: .leading) {
					Text(item.title)
						.font(.headline)
					Text(item.description)
						.font(.subheadline)
				}
			}
			.navigationTitle("データ一覧")
			.onAppear {
				fetchItems()
			}
		}
	}

	func fetchItems() {
		let query = CKQuery(recordType: "Item", predicate: NSPredicate(value: true))
		// let container = CKContainer.default()
		let container = CKContainer(identifier: "iCloud.com.sugoi-suer.SugoiApp")
		let publicDB = container.publicCloudDatabase

		publicDB.fetch(withQuery: query) { result in
			items = []
			switch result {
			case .success(let (matchResults, _)):
				for (recordID, recordResult) in matchResults {
					switch recordResult {
					case .success(let record):
						items.append(
							Item(
								title: record["title"] ?? "-",
								description: record["description"] ?? "-"
							)
						)
						print("Title: \(record["title"] as? String ?? "No Title")")
					case .failure(let error):
						print("Error in get recrd: (\(recordID)): \(error.localizedDescription)")
					}
				}
			case .failure(let error):
				print("Error in query: \(error.localizedDescription)")
			}
		}
	}
}