CODEWITHSUNDEEP
iosnsuserdefaults
user1802143
user1802143

Reputation: 15762

When to write to NSUserDefaults?

When should NSUserDefault values be written? I have a number of default values that could change throughout the duration of the program. Should I be writing the default values immediately after they change or should I wait till the end, when the application is terminated, to write the default values back?

Upvotes: 0

Views: 190

Answers (1)

Matthias Bauch
Matthias Bauch

Reputation: 90127

Set the new values to NSUserDefaults directly after the value has changed. NSUserDefaults keeps its data in memory. So writing will most likely be fast enough.

Just make sure that you don't call synchronize manually. synchronize will write the saved defaults to disk, so this will be relatively slow.
The system will call synchronize from time to time, for example when the app goes into the background.

Upvotes: 1

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