├── CoreDataMVVM.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist └── xcuserdata │ └── azamsharp.xcuserdatad │ └── xcschemes │ └── xcschememanagement.plist └── CoreDataMVVM ├── Assets.xcassets ├── AccentColor.colorset │ └── Contents.json ├── AppIcon.appiconset │ └── Contents.json └── Contents.json ├── ContentView.swift ├── CoreDataMVVMApp.swift ├── CoreDataManager.swift ├── Info.plist ├── Preview Content └── Preview Assets.xcassets │ └── Contents.json ├── TodoAppModel.xcdatamodeld └── TodoAppModel.xcdatamodel │ └── contents └── View Models └── TaskListViewModel.swift /CoreDataMVVM.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 50; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | 8D2B0191262DFB3D00CA4C59 /* CoreDataMVVMApp.swift in 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8D2B0185262DFB3D00CA4C59 /* Project object */; 366 | } 367 | -------------------------------------------------------------------------------- /CoreDataMVVM.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /CoreDataMVVM.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /CoreDataMVVM.xcodeproj/xcuserdata/azamsharp.xcuserdatad/xcschemes/xcschememanagement.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | SchemeUserState 6 | 7 | CoreDataMVVM.xcscheme_^#shared#^_ 8 | 9 | orderHint 10 | 0 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /CoreDataMVVM/Assets.xcassets/AccentColor.colorset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "colors" : [ 3 | { 4 | "idiom" : "universal" 5 | } 6 | ], 7 | "info" : { 8 | "author" : "xcode", 9 | "version" : 1 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /CoreDataMVVM/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "scale" : "2x", 6 | "size" : "20x20" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "scale" : "3x", 11 | "size" : "20x20" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "scale" : "2x", 16 | "size" : "29x29" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "scale" : "3x", 21 | "size" : "29x29" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "scale" : "2x", 26 | "size" : "40x40" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "scale" : "3x", 31 | "size" : "40x40" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "scale" : "2x", 36 | "size" : "60x60" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "scale" : "3x", 41 | "size" : "60x60" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "scale" : "1x", 46 | "size" : "20x20" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "scale" : "2x", 51 | "size" : "20x20" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "scale" : "1x", 56 | "size" : "29x29" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "scale" : "2x", 61 | "size" : "29x29" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "scale" : "1x", 66 | "size" : "40x40" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "scale" : "2x", 71 | "size" : "40x40" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "scale" : "1x", 76 | "size" : "76x76" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "scale" : "2x", 81 | "size" : "76x76" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "scale" : "2x", 86 | "size" : "83.5x83.5" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "scale" : "1x", 91 | "size" : "1024x1024" 92 | } 93 | ], 94 | "info" : { 95 | "author" : "xcode", 96 | "version" : 1 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /CoreDataMVVM/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /CoreDataMVVM/ContentView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ContentView.swift 3 | // CoreDataMVVM 4 | // 5 | // Created by Mohammad Azam on 4/19/21. 6 | // 7 | 8 | import SwiftUI 9 | 10 | struct ContentView: View { 11 | 12 | @StateObject private var taskListVM = TaskListViewModel() 13 | 14 | func deleteTask(at offsets: IndexSet) { 15 | offsets.forEach { index in 16 | let task = taskListVM.tasks[index] 17 | taskListVM.delete(task) 18 | } 19 | 20 | taskListVM.getAllTasks() 21 | } 22 | 23 | var body: some View { 24 | VStack { 25 | HStack { 26 | TextField("Enter task name", text: $taskListVM.title) 27 | .textFieldStyle(RoundedBorderTextFieldStyle()) 28 | Button("Save") { 29 | taskListVM.save() 30 | taskListVM.getAllTasks() 31 | } 32 | } 33 | 34 | List { 35 | ForEach(taskListVM.tasks, id: \.id) { task in 36 | Text(task.title) 37 | }.onDelete(perform: deleteTask) 38 | } 39 | 40 | Spacer() 41 | }.padding() 42 | .onAppear(perform: { 43 | taskListVM.getAllTasks() 44 | }) 45 | 46 | } 47 | } 48 | 49 | struct ContentView_Previews: PreviewProvider { 50 | static var previews: some View { 51 | ContentView() 52 | } 53 | } 54 | -------------------------------------------------------------------------------- /CoreDataMVVM/CoreDataMVVMApp.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CoreDataMVVMApp.swift 3 | // CoreDataMVVM 4 | // 5 | // Created by Mohammad Azam on 4/19/21. 6 | // 7 | 8 | import SwiftUI 9 | 10 | @main 11 | struct CoreDataMVVMApp: App { 12 | var body: some Scene { 13 | WindowGroup { 14 | ContentView() 15 | } 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /CoreDataMVVM/CoreDataManager.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CoreDataManager.swift 3 | // CoreDataMVVM 4 | // 5 | // Created by Mohammad Azam on 4/19/21. 6 | // 7 | 8 | import Foundation 9 | import CoreData 10 | 11 | class CoreDataManager { 12 | 13 | let persistentContainer: NSPersistentContainer 14 | static let shared = CoreDataManager() 15 | 16 | var viewContext: NSManagedObjectContext { 17 | return persistentContainer.viewContext 18 | } 19 | 20 | func getTaskById(id: NSManagedObjectID) -> Task? { 21 | 22 | do { 23 | return try viewContext.existingObject(with: id) as? Task 24 | } catch { 25 | return nil 26 | } 27 | 28 | } 29 | 30 | func deleteTask(task: Task) { 31 | 32 | viewContext.delete(task) 33 | save() 34 | 35 | } 36 | 37 | func getAllTasks() -> [Task] { 38 | 39 | let request: NSFetchRequest = Task.fetchRequest() 40 | 41 | do { 42 | return try viewContext.fetch(request) 43 | } catch { 44 | return [] 45 | } 46 | 47 | } 48 | 49 | func save() { 50 | do { 51 | try viewContext.save() 52 | } catch { 53 | viewContext.rollback() 54 | print(error.localizedDescription) 55 | } 56 | } 57 | 58 | private init() { 59 | persistentContainer = NSPersistentContainer(name: "TodoAppModel") 60 | persistentContainer.loadPersistentStores { (description, error) in 61 | if let error = error { 62 | fatalError("Unable to initialize Core Data Stack \(error)") 63 | } 64 | } 65 | } 66 | 67 | } 68 | -------------------------------------------------------------------------------- /CoreDataMVVM/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UIApplicationSceneManifest 24 | 25 | UIApplicationSupportsMultipleScenes 26 | 27 | 28 | UIApplicationSupportsIndirectInputEvents 29 | 30 | UILaunchScreen 31 | 32 | UIRequiredDeviceCapabilities 33 | 34 | armv7 35 | 36 | UISupportedInterfaceOrientations 37 | 38 | UIInterfaceOrientationPortrait 39 | UIInterfaceOrientationLandscapeLeft 40 | UIInterfaceOrientationLandscapeRight 41 | 42 | UISupportedInterfaceOrientations~ipad 43 | 44 | UIInterfaceOrientationPortrait 45 | UIInterfaceOrientationPortraitUpsideDown 46 | UIInterfaceOrientationLandscapeLeft 47 | UIInterfaceOrientationLandscapeRight 48 | 49 | 50 | 51 | -------------------------------------------------------------------------------- /CoreDataMVVM/Preview Content/Preview Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /CoreDataMVVM/TodoAppModel.xcdatamodeld/TodoAppModel.xcdatamodel/contents: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /CoreDataMVVM/View Models/TaskListViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // TaskListViewModel.swift 3 | // CoreDataMVVM 4 | // 5 | // Created by Mohammad Azam on 4/19/21. 6 | // 7 | 8 | import Foundation 9 | import CoreData 10 | 11 | class TaskListViewModel: ObservableObject { 12 | 13 | var title: String = "" 14 | @Published var tasks: [TaskViewModel] = [] 15 | 16 | func getAllTasks() { 17 | tasks = CoreDataManager.shared.getAllTasks().map(TaskViewModel.init) 18 | } 19 | 20 | func delete(_ task: TaskViewModel) { 21 | 22 | let existingTask = CoreDataManager.shared.getTaskById(id: task.id) 23 | if let existingTask = existingTask { 24 | CoreDataManager.shared.deleteTask(task: existingTask) 25 | } 26 | } 27 | 28 | func save() { 29 | 30 | let task = Task(context: CoreDataManager.shared.viewContext) 31 | task.title = title 32 | 33 | CoreDataManager.shared.save() 34 | } 35 | 36 | } 37 | 38 | struct TaskViewModel { 39 | 40 | let task: Task 41 | 42 | var id: NSManagedObjectID { 43 | return task.objectID 44 | } 45 | 46 | var title: String { 47 | return task.title ?? "" 48 | } 49 | 50 | } 51 | --------------------------------------------------------------------------------