Implementing iCloud Key-Value Storage with Swift - ios

Question

I am having troubles with implementing key-value storage into my app. All my iCloud associated code is in my ViewController and it is as follows:
import UIKit
import CloudKit
import NotificationCenter
var purchased = [[Bool]]() {
didSet {
instance.saveToiCloud()
print("SAVED")
}
}
var rockAmount = 0 {
didSet {
instance.saveToiCloud()
print("SAVED")
}
}
var goldAmount = 0 {
didSet {
instance.saveToiCloud()
print("SAVED")
}
}
var adBlock = false {
didSet {
instance.saveToiCloud()
print("SAVED")
}
}
var instance = GameViewController()
class GameViewController: UIViewController {
var iCloudKeyStore: NSUbiquitousKeyValueStore?
var interstitial: GADInterstitial!
var rewardAd = GADRewardBasedVideoAd()
var instRequest = receivingInst.GameScene //Placeholder
var instCatch = false
var rewardCatch = false
override func viewDidLoad() {
super.viewDidLoad()
//Set up iCloud Key-Value Storage
iCloudKeyStore = NSUbiquitousKeyValueStore()
iCloudKeyStore?.synchronize()
//Retrieve Assets from database
retrieveAssets()
NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.ubiquitousKeyValueStoreDidChange), name: NSUbiquitousKeyValueStore.didChangeExternallyNotification, object: iCloudKeyStore)
instance = self
if let view = self.view as! SKView? {
// Load the SKScene from 'GameScene.sks'
//if let scene = SKScene(fileNamed: "GameScene") {
if let scene = SKScene(fileNamed: "LaunchScene") {
// Set the scale mode to scale to fit the window
scene.scaleMode = .aspectFill //.fill
// Present the scene
view.presentScene(scene)
}
view.ignoresSiblingOrder = true
//view.showsFPS = true
//view.showsPhysics = true
}
}
func retrieveAssets() {
//notFirst is to determine if it is the first ti
let notFirst = UserDefaults.standard.bool(forKey: "notFirst")
if !notFirst {
//Create iCloud References
var c = 0
while c < 4 {
var keyMake = ""
switch c {
case 0: keyMake = "purchasedCloud"
saveToiCloudArray(purchased, keyMake)
case 1: keyMake = "goldCloud"
saveToiCloudInt(0, keyMake)
case 2: keyMake = "rocksCloud"
saveToiCloudInt(0, keyMake)
case 3: keyMake = "adBlockCloud"
saveToiCloudBool(false, keyMake)
default: break
}
c += 1
}
print("SET")
}
//Retrieve iCloud Data
getValuesFromiCloud()
}
func ubiquitousKeyValueStoreDidChange(notification: NSNotification) {
let alert = UIAlertController(title: "Change detected",
message: "iCloud key-value-store change detected",
preferredStyle: UIAlertControllerStyle.alert)
let cancelAction = UIAlertAction(title: "OK",
style: .cancel, handler: nil)
alert.addAction(cancelAction)
self.present(alert, animated: true,
completion: nil)
getValuesFromiCloud()
}
func iCloudGetInt(_ key: String) -> Int {
var str = 0
if let saved = iCloudKeyStore?.object(forKey: key) {
print("B-INT\(saved)")
str = saved as! Int
print("A-INT\(saved)")
} else {
str = -10
print("IntFailed")
}
return str
}
func iCloudGetArray(_ key: String) -> [[Bool]] {
var str = [[Bool]]()
if let saved = iCloudKeyStore?.array(forKey: key){
print("B-AR\(saved)")
str = saved as! [[Bool]]
print("A-AR\(saved)")
} else {
str = [[]]
print("ArFailed")
}
return str
}
func iCloudGetBool(_ key: String) -> Bool {
var str = false
if let saved = iCloudKeyStore?.bool(forKey: key){
print("B-BOOL\(saved)")
str = saved as! Bool
print("A-BOOL\(saved)")
} else {
str = false
print("BoolFailed")
}
return str
}
//Set if stored icloud value is greater than current (on button activation)
func saveToiCloudArray(_ txt: [[Bool]],_ key: String) {
iCloudKeyStore?.set(txt, forKey: key)
//iCloudKeyStore?.synchronize()
}
func saveToiCloudInt(_ txt: Int,_ key: String) {
iCloudKeyStore?.set(txt, forKey: key)
//iCloudKeyStore?.synchronize()
}
func saveToiCloudBool(_ txt: Bool,_ key: String) {
iCloudKeyStore?.set(txt, forKey: key)
//iCloudKeyStore?.synchronize()
}
func getValuesFromiCloud() {
var c = 0
while c < 4 {
var keyMake = ""
switch c {
case 0: keyMake = "purchasedCloud"
let ar = iCloudGetArray(keyMake)
if !ar.isEmpty {
purchased = ar
UserDefaults.standard.set(purchased, forKey: "purchased")
} else {
print("Error\(keyMake)")
}
case 1: keyMake = "goldCloud"
let g = iCloudGetInt(keyMake)
if g != -10 {
goldAmount = g
UserDefaults.standard.set(goldAmount, forKey: "goldAmount")
} else {
print("Error\(keyMake)")
}
case 2: keyMake = "rocksCloud"
let r = iCloudGetInt(keyMake)
if r != -10 {
rockAmount = r
UserDefaults.standard.set(rockAmount, forKey: "rockAmount")
} else {
print("Error\(keyMake)")
}
case 3: keyMake = "adBlockCloud"
let r = iCloudGetBool(keyMake)
adBlock = r
UserDefaults.standard.set(adBlock, forKey: "adBlock")
default: break
}
c += 1
}
print(purchased, rockAmount, goldAmount)
}
func saveToiCloud() {
var c = 0
while c < 4 {
var keyMake = ""
switch c {
case 0: keyMake = "purchasedCloud"
saveToiCloudArray(purchased, keyMake)
case 1: keyMake = "goldCloud"
saveToiCloudInt(goldAmount, keyMake)
case 2: keyMake = "rocksCloud"
saveToiCloudInt(rockAmount, keyMake)
case 3: keyMake = "adBlockCloud"
saveToiCloudBool(adBlock, keyMake)
default: break
}
c += 1
}
}
[I realise that the code is not optimised and is not very clean but it's because I have been trying out many different things]
I have enabled iCloud in my Capabilities and done everything for the Provisioning Profile like this (the container exists and is valid):
I was wondering that maybe my issue is one of 2 things:
My code is meant to be in the AppDelegate and not in the ViewController.
OR
I need to write an entitlement here (which is accessible by the .entitlements file):
The highlighted red section is the one I am thinking to change (the iCloud Key-Value Store). Am I meant to write my own thing instead of $(TeamIdentifierPrefix)$(CFBundleIdentifier)? It says that is com.apple.developer.ubiquity-kvstore-identifier but what does this mean and how should I fill it out if I need to (e.g. what is the ubiquity-kvstore-identifier)?
Any sort of help and guidance would be greatly appreciated. Thank you.

Answer 1

The solution I found was to use the default container and not the specified container for iCloud. I'm not sure what the real difference between the 2 is but changing to this worked for me.
Also, I'm not sure if this helped solve getting iCloud key-value data to be stored but I put the code into the AppDelegate instead of the ViewController.