Swift does the "get" method will change the value of variable?

Question

I just want to do something when the variable update value, and do not change the value. But the "get" is required if I implement "set", so I try to return the value self. It looks has already in "hell cycle":

var imageInfo:ImageInfo! {

    get {
        return self.imageInfo
    }
    set(info) {
        self.imageView.image = UIImage(named: info.fileName)
    }

}

Use `didSet` instead: http://stackoverflow.com/questions/24006234/what-is-the-purpose-of-willset-and-didset-in-swift. — Martin R, Aug 22 '16 at 08:57

score 0 · Accepted Answer · answered Aug 22 '16 at 09:00

0

If you want to do something when update the value, you should implement didSet method.

var imageInfo:ImageInfo! {

        didSet{
         // do your stuff here
         self.imageView.image = UIImage(named: imageInfo.fileName)
        }

}

answered Aug 22 '16 at 09:00

Muzahid

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Man, thanks for help. – Raymond Liao Aug 23 '16 at 07:05

Swift does the "get" method will change the value of variable?

1 Answers1