UserDefaults

Build Status

iOS	macOS	watchOS	tvOS

Usage

Define Static Keys for easy access to data stored in UserDefaults

extension DefaultsKeys {
  static let key = DefaultsKey<String>("key")
  static let number = DefaultsKey<Double>("number")
  static let condition = DefaultsKey<Bool>("condition")
  // eg. struct SomeCodable : Codeable { ... }
  static let codeable = DefaultsKey<SomeCodable>("somecodeable")
}

Write to UserDefaults

Static keys

UserDefaults.standard[.key] = "Value"
UserDefaults.standard[.number] = -3.4
UserDefaults.standard[.condition] = true
UserDefaults.standard[.codeable] = SomeCodable()

String Keys

UserDefaults.standard["key"] = "Value"
UserDefaults.standard["number"] = -3.4
UserDefaults.standard["condition"] = true

Read from UserDefaults

Static Keys

var string = UserDefaults.standard[.key]
// string = Optional<String>

if UserDefaults.standard[.condition] {
  // true
}

let someCodable: SomeCodable? = UserDefaults.standard[.codeable]
// someCodable = Optional<SomeCodable>

String Keys

let object = UserDefaults.standard["key"]
// object = Optional<Any>

let string = UserDefaults.standard.string("key")
// string = Optional<String>

Alter UserDefaults

Static Keys

UserDefaults.standard[.key] += ". Other value."

UserDefaults.standard[.number] *= 1.2

String Keys

UserDefaults.standard["key"] = UserDefaults.standard.string(forKey: "key") ?? "" + ". Other value."

UserDefaults.standard["number"] = UserDefaults.standard.double("number") * 1.2

Installation

UserDefaults is available through Carthage. To install just write into your Cartfile:

github "divadretlaw/UserDefaults"

License

See LICENSE

Copyright © 2018 David Walter (www.davidwalter.at)