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OnOffEnum 

enum OnOffEnum

The on or off state of the device.

  • The device’s on or off state is unspecified.

    Declaration

    Swift

    case unspecified

  • on

    The device is on.

    Declaration

    Swift

    case on

  • off

    The device is off.

    Declaration

    Swift

    case off

  • Creates a new instance with the specified raw value.

    If there is no value of the type that corresponds with the specified raw value, this initializer returns nil. For example:

    enum PaperSize: String {
    case A4, A5, Letter, Legal
}

print(PaperSize(rawValue: "Legal"))
// Prints "Optional(PaperSize.Legal)"

print(PaperSize(rawValue: "Tabloid"))
// Prints "nil"

    Declaration

    Swift

    init?(rawValue: UInt64)

    Parameters

    rawValue

    The raw value to use for the new instance.