Saving Data in iOS

May 31 2022 · Swift 5.5, iOS 15, Xcode 13

Part 2: JSON

12. Challenge: Decoding JSON Arrays

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Notes: 12. Challenge: Decoding JSON Arrays

This course was originally recorded in April 2020. It has been reviewed and all content and materials updated as of November 2021.

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If your type is Encodable, not only can you decode an instance of it in JSON, you can store an array of its instances in JSON.

let tasksJSONURL = Bundle.main.url(forResource: "Tasks", withExtension: "json")
let prioritizedTaskJsSONURL = Bundle.main.url(forResource: "PrioritizedTasks", withExtension: "json")
let tasksData = try Data(contentsOf: tasksJSONURL)
let tasks = try decoder.decode(Task.self, from: tasksData)

let prioritizedTasksData = try Data(contentsOf: prioritizedTasksJSONURL)
let prioritizedTasks = try decoder.decode(TaskStore.PrioritizedTasks.self, from: prioritizedTasksData)
let tasks = try decoder.decode([Task].self, from: tasksData)

let prioritizedTasks = try decoder.decode([TaskStore.PrioritizedTasks].self, from: prioritizedTasksData)
import Combine
import Foundation
private func loadJSONPrioritizedTasks
guard let tasksJSONURL = Bundle.main.url(forResource: "PrioritizedTasks", withExtension: "json") else {
let tasksData = try Data(contentsOf: tasksJSONURL)
prioritizedTasks = try decoder.decode([PrioritizedTasks].self, from: tasksData)
@Published var prioritizedTasks: [PrioritizedTasks] = []
init() {