find specific subview which cast as a specific subclass

Question

Created Sep ’17

Replies 4

Boosts 0

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Participants 4

How do you iterate through superviews or subviews of a view and find the one that is of a certain subclass. I can't use an "if let" because the subviews are not held in optional variables. I've tried that.

Answered by Claude31 in 266164022

I would do like this:

        self.subviews.forEach({ (sub : NSView) in
            if let subV = (sub as? CustomType) {
                Swift.print(subV)
               // whatever statement appropiate
            }
        })

Boost

Answer 1

DTS Engineer OP

Apple

Oct ’17

You can combine

if let

with the

as?

operator like this:

let view: UIView = … something …
if let button = view as? UIButton {
    … do button-specific stuff …
}

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0

Answer 2

Claude31 OP

Oct ’17

Accepted Answer

I would do like this:

        self.subviews.forEach({ (sub : NSView) in
            if let subV = (sub as? CustomType) {
                Swift.print(subV)
               // whatever statement appropiate
            }
        })

0

Answer 3

Reporterkey OP

Jun ’18

Hbbnkk

0

Answer 4

ShinehahGnolaum OP

Jun ’18

What does “Hbbnkk” mean?

0