Perform Selector With Object in swift 3

ios swift3 selector ios10
Zaheer Abbas picture Zaheer Abbas · Jan 31, 2017 · Viewed 24.2k times · Source

I am trying to perform selector with object in swift 3.0

I have a selector which have one parameter

func imageSelected(aImage : UIImage)

and I am calling it like

viewC.perform(Selector.init("imageSelected:"), with: image, afterDelay: 0.1)

But the app crashes with error that the selector is not defined.

Answer

Sweeper picture Sweeper · Jan 31, 2017

Here's something I always do when I encounter selectors in swift: Ignore the parameters, just use the name.

You used this:

imageSelected:

What is that : doing there? Delete it! Just use the name of the method!

Also, there is this great #selector syntactic sugar, please use that:

viewC.perform(#selector(imageSelected), with: image, afterDelay: 0.1)

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