![]() Retrieve the boolean value for the key "isDarkModeEnabled" ![]() Set a boolean value for the key "isDarkModeEnabled"ĭt(true, forKey: "isDarkModeEnabled") Here are some more examples of UserDefaults use in Swift − Example 1: Saving and Retrieving Booleans import Foundation Security − UserDefaults data is kept safely in the app's sandbox, which means that only the program that produced it may access it. Simple API − Its ease of use makes it simple to set and get values by key.įast − UserDefaults is a suitable option for tiny quantities of data because it is built for speedy reads and writes. These are some of UserDefaults' main characteristicsĭata Persistence − Even if the app is closed or the device reboots, UserDefaults data remains accessible. It is simple to use and doesn't need other frameworks or libraries. Simple data types, such as text, booleans, integers, and dates, are frequently stored in User Defaults. The value may then be obtained by using the key as a reference. You assign a value to a particular key in a key-value pair system that is used. In iOS, macOS, and watchOS, a fundamental storage mechanism called UserDefaults enables an app to store relatively small amounts of data, including user preferences or settings. In this article, you will learn about User Defaults with some examples. You can use User Defaults, Property List Serialization, Core Data, etc. In Swift, there are several ways to save local data in an app, depending on the type and size of data you want to save.
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