Are shared preferences stored in memory during runtime?

Question

Are shared preferences in Android always read at startup and stored in memory during runtime? If not, are there more efficient ways to read preferences than this?

settings = getSharedPreferences("myPrefsFile", 0);
int answer = settings.getInt("ULTIMATE_QUESTION", 42);

Yes, they are stored in memory (via Linux / Android disk read cache), and no, that is the most efficient way to read them. — Jonas Czech, Apr 14 '15 at 18:32
Then what should be the preferred way of reading the preferences? — Krøllebølle, Apr 14 '15 at 18:34
The way you have in your question, as the API does not offer anything else. — Jonas Czech, Apr 14 '15 at 18:35
Interesting related information on [this answer to another post](https://stackoverflow.com/a/4371883/383414) — Richard Le Mesurier, Jan 18 '19 at 14:41

score 2 · Accepted Answer · answered Apr 14 '15 at 18:39

Are shared preferences in Android always read at startup and stored in memory during runtime

Simply Yes till user doesn't clear it manually from setting.

are there more efficient ways to read preferences than this

As JonasCz said in comments.. this is the most common and developer friendly way till now.

Are shared preferences stored in memory during runtime?

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