Problem Storing Data (e.g. Preferences) in a Safari App Extension

What do you mean by the fact that values are not made persistent?

Using NSUserDefaults in Safari App Extensions should work correctly. If you look at:

https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html

There is some information about how to share NSUserDefaults between your Safari App Extension and your containing app. If this doesn't help you, can you file a radar explaining when you see your NSUserDefaults wiped with a sample project?

Thanks!

Thanks for the response.

I was looking for a way similar to the former "settings" including the secure settings, including an editor.

My approach now wa to use the UserDefaults in a shared code (shared between containing App and Safari Extension)

While I now see that the information stored by the App Extension is persistent, it cannot be seen in the containing App.

To explain this - I want to use the Hosting App as a settings editor for the persisted values.

The Code for the User-Defaults-Acces looks like this:

class MySettings {
    private let myDefaults : UserDefaults = UserDefaults(suiteName: "com.myAppId")!
    var myVal: String {
        set {
            myDefaults.set(newValue, forKey: "mySettingId")
            myDefaults.synchronize()
        }
        get {
            return myDefaults.string(forKey: "mySettingId") ?? ""
        }
    }
    static let shared = MySettings()
}

I included the code in both Targets (hosting App and Extension)

The problem that I am now facing is that when I try to access the settings in the containing App, I do not receive the stored values...

Regards

Rainer

I haven't tested this myself and can be wrong, but I believe so that this works, bot the extension and its container application need to be in the same application group. Have you set them so in your project?