Assuming that you don't care which NSManagedObjectContext is used, and you just want to make some changes and save them in the background, use the following method. 90% of the time, this is what you'll want.
NSManagedObjectSubclass *myObject = [NSManagedObjectSubclass MR_findFirst];
[MagicalRecord saveWithBlock:^(NSManagedObjectContext *localContext) {| // | |
| // API.swift | |
| // | |
| // Created by Taro Minowa on 6/10/14. | |
| // Copyright (c) 2014 Higepon Taro Minowa. All rights reserved. | |
| // | |
| import Foundation | |
| typealias JSONDictionary = Dictionary<String, AnyObject> |
| import Foundation | |
| import XCTest | |
| ////////////////////////////////////////////////////////////////////// | |
| // Preferences | |
| protocol UserDefaults { | |
| func stringForKey(key: String) -> String | |
| } |
| name: XXXX | |
| attributes: | |
| LastUpgradeCheck: 1140 | |
| ORGANIZATIONNAME: "kankak, Inc." | |
| options: | |
| bundleIdPrefix: com.xxxx.xxxxxxxx | |
| deploymentTarget: | |
| iOS: 13.1.3 | |
| configs: | |
| Develop Debug: debug |
| struct ContentView: View { | |
| @State var titles = ["Cell #1", "Cell #2", "Cell #3", "Cell #4"] | |
| var body: some View { | |
| NavigationView { | |
| ScrollView { | |
| VStack(spacing: 0) { | |
| ForEach(self.titles, id: \.self) { title in | |
| HStack { | |
| Text(title) |
