{"id":25457904,"url":"https://github.com/cuadros-code/project-7-swiftui-iexpensive","last_synced_at":"2025-07-19T23:04:02.126Z","repository":{"id":261130435,"uuid":"883250790","full_name":"cuadros-code/Project-7-SwiftUI-IExpensive","owner":"cuadros-code","description":"Project 7 track your 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 IExpensive\n\n### News\n\n```@Environment(\\.dismiss) var dismiss```\n\n```Identifiable, Codable```\n\n```@Observable class```\n\n```JSONEncoder().encode```\n\n```JSONDecoder().decode```\n\n```Locale.current.currency?.identifier```\n\n---\n\n## Sharing SwiftUI state with @Observable\n\n```swift\nimport SwiftUI\n\n@Observable\nclass User {\n    var name = \"Kevin\"\n    var lastName = \"Cuadros\"\n}\n\nstruct SecondView: View {\n    @Environment(\\.dismiss) var dismiss\n    let name: String\n    \n    var body: some View {\n        Text(\"Hello, \\(name)!\")\n        Button(\"Dismiss\"){\n            dismiss()\n        }\n    }\n}\n\nstruct ContentView: View {\n    \n    @State private var user = User()\n    @State private var showingSheet = false\n    \n    var body: some View {\n    \n        VStack {\n            Text(\"Your name is \\(user.name) \\(user.lastName)\")\n            \n            TextField(\"First name\", text: $user.name)\n            TextField(\"Last name\", text: $user.lastName)\n            \n            Button(\"Show Sheet\") {\n                showingSheet.toggle()\n            }\n            \n            .sheet(isPresented: $showingSheet) {\n                SecondView(name: user.name)\n            }\n        }\n        .padding()\n    }\n}\n\n#Preview {\n    ContentView()\n}\n```\n\n\n## Deleting items using onDelete()\n\n```swift \nimport SwiftUI\n\n\nstruct ContentView: View {\n    \n    @State private var numbers = [Int]()\n    @State private var currentNumber = 1\n    \n    var body: some View {\n        NavigationStack {\n            VStack {\n                List {\n                    ForEach(numbers, id: \\.self)  {\n                        Text(\"Row \\($0)\")\n                    }\n                    .onDelete(perform: removeRows)\n                }\n                \n                Button(\"Add number\") {\n                    numbers.append(currentNumber)\n                    currentNumber += 1\n                }\n                \n            }\n            .toolbar {\n                EditButton()\n            }\n        }\n    }\n    \n    func removeRows(at offsets: IndexSet){\n        numbers.remove(atOffsets: offsets)\n    }\n    \n}\n\n#Preview {\n    ContentView()\n}\n```\n\n## AppStorage encode\n\n```swift\nimport SwiftUI\n\n\nstruct User: Codable {\n    let firstName: String\n    let lastName : String\n}\n\n\nstruct ContentView: View {\n    \n    @AppStorage(\"tapCount\") private var tapCount = 0\n    \n    @State private var user = User(firstName: \"Taylor\", lastName: \"Swift\")\n    \n    var body: some View {\n        VStack {\n           \n            Button(\"Tap Count: \\(tapCount)\") {\n                tapCount += 1\n                \n                let encoder = JSONEncoder()\n\n                if let data = try? encoder.encode(user) {\n                    UserDefaults.standard.set(data, forKey: \"UserData\")\n                }\n                \n            }\n        }\n        \n    }\n    \n}\n\n#Preview {\n    ContentView()\n}\n```\n\n![img](https://github.com/user-attachments/assets/d8ac648d-2322-4f4d-8ec3-f8f8163298df)\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcuadros-code%2Fproject-7-swiftui-iexpensive","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcuadros-code%2Fproject-7-swiftui-iexpensive","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcuadros-code%2Fproject-7-swiftui-iexpensive/lists"}