Why Firebase Remote Config doesn't update values? - ios

Question

I'm using Firebase Remote Config, I have some troubles to update values.
My values are updated only if I close and relaunch the app.
But never if my app enters in foreground.
The developer is activated, with no cache delay.
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
let _ = RCFirebaseValues.sharedInstance
}
}
My Firebase Remote Config class:
enum ValueKey: String {
case force_update
}
class RCFirebaseValues {
static let sharedInstance = RCFirebaseValues()
var loadingDoneCallback: (() -> ())?
var fetchComplete: Bool = false
private init() {
loadDefaultValues()
fetchCloudValues()
}
func loadDefaultValues() {
RemoteConfig.remoteConfig().setDefaults(fromPlist: "RemoteConfigDefaults")
}
func fetchCloudValues() {
#if DEBUG
let expirationDuration: TimeInterval = 0
RemoteConfig.remoteConfig().configSettings = RemoteConfigSettings(developerModeEnabled: true)
#else
let expirationDuration: TimeInterval = 3600
#endif
RemoteConfig.remoteConfig().fetch(withExpirationDuration: expirationDuration) {
[weak self] (status, error) in
guard error == nil else {
DLog(message:"Uh-oh. Got an error fetching remote values \(String(describing: error))")
return
}
RemoteConfig.remoteConfig().activateFetched()
self?.fetchComplete = true
self?.loadingDoneCallback?()
}
}
func bool(forKey key: ValueKey) -> Bool {
return RemoteConfig.remoteConfig()[key.rawValue].boolValue
}
func string(forKey key: ValueKey) -> String {
return RemoteConfig.remoteConfig()[key.rawValue].stringValue ?? ""
}
func double(forKey key: ValueKey) -> Double {
if let numberValue = RemoteConfig.remoteConfig()[key.rawValue].numberValue {
return numberValue.doubleValue
} else {
return 0.0
}
}
}
What's wrong?
EDIT after Mosbah's response:
class AppDelegate: UIResponder, UIApplicationDelegate {
var remoteConfig:RCFirebaseValues!
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
self. remoteConfig = RCFirebaseValues.sharedInstance
}
}

Answer 1

Your RCFirebaseValues scope is wrong, it will be nil as soon as you are out of application: didFinishLaunchingWithOptions: so you should keep a strong reference to your object (create a var on AppDelegate).