Initializer

init(wrappedValue:_:store:)

Creates a property that can read and write to a user default as data.

Declaration 宣言

init(wrappedValue: Value, _ key: String, store: UserDefaults? = nil) where Value == Data

Parameters パラメータ

wrappedValue: The default value if a data value is not specified for the given key.
key: The key to read and write the value to in the user defaults store. user defaults storeにおいてその値を読み出すそして書き出すためのキー。
store: The user defaults store to read and write to. A value of nil will use the user default store from the environment. それに読み出しおよび書き出しするuser defaults store。nilの値は、その環境からのuser default storeを使います。

Discussion 議論

Avoid storing large data blobs in user defaults, such as image data, as it can negatively affect performance of your app. On tvOS, a NSUserDefaultsSizeLimitExceededNotification notification is posted if the total user default size reaches 512kB.

See Also 参照

Storing a Value

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to a string user default.

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to an integer user default, transforming that to RawRepresentable data type. あるプロパティを作成します、それはある整数defaultを読み出しおよび書き出しが可能です、それをRawRepresentableデータ型に変換しています。

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to an integer user default.

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to a string user default, transforming that to RawRepresentable data type.

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to a url user default.

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to a double user default.

init(wrappedValue: Value, String, store: UserDefaults?)

Creates a property that can read and write to a boolean user default.