SwiftUI Core Data 88 - Core Data 초기화

#1. Managers 그룹 생성후 CoreDataManager 파일(Swift) 생성

 

 

 

#2. CoreDataManager, name명이 Core Data화일명과 동일해야 함

 

import Foundation

import CoreData

 

class CoreDataManager{

    

    let persistentContainer: NSPersistentContainer

    

    init(){

        

        persistentContainer = NSPersistentContainer(name: "HelloCoreDataModel")

        persistentContainer.loadPersistentStores{(description, error) in

            

            if let error = error {

                fatalError("Core Data Store failed to initialize \(error.localizedDescription)")

            }

            

        }

    }

    

}

 

 

#3. ContentView

 

import SwiftUI

 

struct ContentView: View {

    

    let coreDM: CoreDataManager

    

    var body: some View {

        Text("Hello, world!")

            .padding()

    }

}

 

struct ContentView_Previews: PreviewProvider {

    static var previews: some View {

        ContentView(coreDM: CoreDataManager())

    }

}

 

#4. App 화일 수정

 

import SwiftUI

 

@main

struct _5_CoreData_87App: App {

    var body: some Scene {

        WindowGroup {

            ContentView(coreDM: CoreDataManager())

        }

    }

}