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FitnessApp/FitnessApp/AppDelegate.swift
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// | |
// AppDelegate.swift | |
// FitnessApp | |
// | |
// Created by Varun Thomas on 20/11/2020. | |
// Copyright © 2020 Varun Thomas. All rights reserved. | |
// | |
import UIKit | |
import CoreData | |
@UIApplicationMain | |
class AppDelegate: UIResponder, UIApplicationDelegate { | |
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { | |
// Override point for customization after application launch. | |
// changed the colour of the | |
UITabBar.appearance().barTintColor = .black | |
UITabBar.appearance().tintColor = .red | |
return true | |
} | |
// MARK: UISceneSession Lifecycle | |
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration { | |
// Called when a new scene session is being created. | |
// Use this method to select a configuration to create the new scene with. | |
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role) | |
} | |
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) { | |
// Called when the user discards a scene session. | |
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions. | |
// Use this method to release any resources that were specific to the discarded scenes, as they will not return. | |
} | |
// MARK: - Core Data stack | |
lazy var persistentContainer: NSPersistentContainer = { | |
/* | |
The persistent container for the application. This implementation | |
creates and returns a container, having loaded the store for the | |
application to it. This property is optional since there are legitimate | |
error conditions that could cause the creation of the store to fail. | |
*/ | |
let container = NSPersistentContainer(name: "FitnessApp") | |
container.loadPersistentStores(completionHandler: { (storeDescription, error) in | |
if let error = error as NSError? { | |
// Replace this implementation with code to handle the error appropriately. | |
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development. | |
/* | |
Typical reasons for an error here include: | |
* The parent directory does not exist, cannot be created, or disallows writing. | |
* The persistent store is not accessible, due to permissions or data protection when the device is locked. | |
* The device is out of space. | |
* The store could not be migrated to the current model version. | |
Check the error message to determine what the actual problem was. | |
*/ | |
fatalError("Unresolved error \(error), \(error.userInfo)") | |
} | |
}) | |
return container | |
}() | |
// MARK: - Core Data Saving support | |
func saveContext () { | |
let context = persistentContainer.viewContext | |
if context.hasChanges { | |
do { | |
try context.save() | |
} catch { | |
// Replace this implementation with code to handle the error appropriately. | |
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development. | |
let nserror = error as NSError | |
fatalError("Unresolved error \(nserror), \(nserror.userInfo)") | |
} | |
} | |
} | |
} | |