CODEWITHSUNDEEP
ioscore-dataswift3
Ivan Cantarino
Ivan Cantarino

Reputation: 3246

Caching User Profile

I have a struct that's something like the following:

Struct User {
    let name: String?
    let address: String?

    init(name: String, address:String) {
         self.name = name
         self.address = address
    }
 }

I'm trying to cache the users profile but I'm in doubt on the best approach to do it.

The struct example I gave above is a smaller size of my real struck which containes profile picture as well.

I already cache some useful stuff in [UserDefaults] but I'm wondering if I should cache the user profile inside UserDefaults or CoreData?

If you think UserDefaults is the best approach, how can I store this Class-type into it? I can store simple booleans and so on, but how could I save a struct like the above, then fetch its data properly?

self.cacheUser = User(name: "Ivan", address: "EUA")

How could I cache the [cacheUser] into [NSUserDefaults] ?

Thanks.

Upvotes: 0

Views: 72

Answers (1)

jacob
jacob

Reputation: 3557

You can use an NSKeyedArchiver to archive the object and then an NSKeyedUnarchiver to unarchive the object, but it would have to conform to the NSCopying protocol.

You can also use CoreData to save the objects if they are more extensive and complex.

If there are not too many variables in the classes, you can simply put the variable names and values in a dictionary and save the dictionary to your user defaults. You can then fetch them and rebuild the object with the dictionary values saved in user defaults. But I would only do this if the objects are very simple (eg, a class with a couple Ints and/or Strings).

Ultimately, I suggest using CoreData for persisting custom objects. Because, as classes begin to get more and more complex, CoreData will give you much better performance and faster accessibility.

Upvotes: 1

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