Can a Swift Optional Int (Int?) be exposed to Objective-C via bridging?

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隐瞒了意图╮
隐瞒了意图╮ 2020-12-01 12:13

Within a Swift class derived from an Obj-C based framework (but could just as easily be a Swift class with an @objc attribute) I declare two stored properties:



        
2条回答
  •  鱼传尺愫
    2020-12-01 12:31

    Here's a concrete answer for the solution described above:

    private var _number: Int?
    public var number: NSNumber? {
        get {
            return _number as NSNumber?
        }
        set(newNumber) {
            _number = newNumber?.intValue
        }
    }
    
    // In case you want to set the number in the init
    public init(number: NSNumber?) {
        _number = number?.intValue
    }
    

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