William Boles

Saving and retrieving data from NSUserDefaults

#userdefaults #persistence
26 Sep 2011 1 min read

NSUserDefaults is a great way to save small amounts of data that you want to persistent across application "sessions" (especially where a database would be overkill).

A photo of a pile of files

Saving data to NSUserDefaults:

[[NSUserDefaults standardUserDefaults] setBool:YES forKey:KEY_TO_IDENTIFY_INFORMATION];

In the above, we save the value: YES with the key: 

KEY_TO_IDENTIFY_INFORMATION

Retrieving data from NSUserDefaults:

[[NSUserDefaults standardUserDefaults] boolForKey:KEY_TO_IDENTIFY_INFORMATION]

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