//
// AddProductView.swift
// CodigoBarrasInventario
//
// Created by David Grau Beltrán on 06/02/24.
//
import SwiftUI
// Define a struct to represent each product
struct Product {
var name: String
var code: String
}
// Define a class to manage the inventory
class Inventory: ObservableObject {
@Published var products: [Product] = []
// Function to add a product to the inventory
func addProduct(name: String, code: String) {
let product = Product(name: name, code: code)
products.append(product)
}
}
// Define a SwiftUI view for adding products
struct AddProductView: View {
@State private var productName = ""
@State private var productCode = ""
@ObservedObject var inventory: Inventory
var body: some View {
VStack {
TextField("Enter Product Name", text: $productName)
.textFieldStyle(RoundedBorderTextFieldStyle())
.padding()
TextField("Enter Product Code", text: $productCode)
.textFieldStyle(RoundedBorderTextFieldStyle())
.padding()
Button("Add Product") {
if !productName.isEmpty && !productCode.isEmpty {
inventory.addProduct(name: productName, code: productCode)
productName = ""
productCode = ""
}
}
.padding()
Divider()
Text("Products in Inventory:")
.font(.headline)
.padding(.top)
List(inventory.products, id: \.code) { product in
VStack(alignment: .leading) {
Text("Name: \(product.name)")
Text("Code: \(product.code)")
}
}
.padding()
}
}
}
#Preview {
AddProductView()
}
momentoelectrico
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
// Define a SwiftUI view for adding products
struct AddProductView: View {
@State private var productName = ""
@State private var productCode = ""
@ObservedObject var inventory: Inventory
var body: some View {
VStack {
TextField("Enter Product Name", text: $productName)
.textFieldStyle(RoundedBorderTextFieldStyle())
.padding()
TextField("Enter Product Code", text: $productCode)
.textFieldStyle(RoundedBorderTextFieldStyle())
.padding()
Button("Add Product") {
if !productName.isEmpty && !productCode.isEmpty {
inventory.addProduct(name: productName, code: productCode)
productName = ""
productCode = ""
}
}
.padding()
Divider()
Text("Products in Inventory:")
.font(.headline)
.padding(.top)
List(inventory.products, id: \.code) { product in
VStack(alignment: .leading) {
Text("Name: \(product.name)")
Text("Code: \(product.code)")
}
}
.padding()
}
}
}
#Preview {
AddProductView()
}
In the file InventoryManager when I return Inventory appears: Missing argument for parameter 'from' in call also in ContentView
InventoryManager.swift
import Foundation
class InventoryManager {
static let shared = InventoryManager()
private let key = "inventory"
func saveInventory(_ inventory: Inventory) {
if let encoded = try? JSONEncoder().encode(inventory) {
UserDefaults.standard.set(encoded, forKey: key)
}
}
func loadInventory() -> Inventory {
if let data = UserDefaults.standard.data(forKey: key),
let decoded = try? JSONDecoder().decode(Inventory.self, from: data) {
return decoded
}
return Inventory() // <-- HERE
}
}
ContentView.swift
import Foundation
import SwiftUI
struct ContentView: View {
@State private var inventory: Inventory = Inventory() // <-- HERE
var body: some View {
TabView {
... etc