Created
October 11, 2019 05:30
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extension UserDefaults { | |
@objc dynamic var yourKey: Bool { | |
return bool(forKey: "yourKey") | |
} | |
} | |
protocol UserDefaultsObservable: AnyObject { | |
var observation: Any? { get set } | |
typealias UserDefaultsCompletionHandler = (_ defaults: UserDefaults) -> Void | |
func addObservation(completion: UserDefaultsCompletionHandler?) | |
} | |
extension UserDefaultsObservable { | |
func addObservation(completion: UserDefaultsCompletionHandler?) { | |
observation = UserDefaults.standard.observe(\.yourKey, options: [.new], changeHandler: { defaults, _ in | |
completion?(defaults) | |
}) | |
} | |
} |
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