CODEWITHSUNDEEP
androidsharedpreferencesandroid-lifecycle
MBH
MBH

Reputation: 16619

Is it good practice to use SharedPreferences as disk cache?

I need to cache an object to access it every and each Activity and Fragment in my app.

I tried to make it static, But , unfortunately, sometimes Android OS makes this static as null which crashes my app with no reason.

so is it a good practice to use SharedPreferences with Gson to serialize and cache the object on the disk?

Upvotes: 1

Views: 2377

Answers (2)

Rahul Tiwari
Rahul Tiwari

Reputation: 6968

sharedPreferences are designed to store data which should be retained between sessions.

If you need that object between the app launches then it's ok to use sharedPreference.

For your problem sharedPreference is a quick solution, however I still encourage you to find reason of your static variable being null.

Upvotes: 1

Hugo Gresse
Hugo Gresse

Reputation: 17899

Generaly, you shouldn't use too much the SharedPreferences as it's not as fast as a local database, but actually, you can use it if your set of data is not too big and if you just want a simple cache.

A simple alternative would be to use Realm.

Upvotes: 3

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