swift - How to animate the alpha of a textLabel in UITableView? -

swift - How to animate the alpha of a textLabel in UITableView? -

hey guys trying alter alpha of default taxtlabel uitableview when table scrolled getting error:

cannot invoke 'animatewithduration' argument list of type '(floatliteralconvertible, animations: () -> () -> $t2)'

my code this:

override func scrollviewdidscroll(scrollview: uiscrollview) { cell in tableview.visiblecells() { uiview.animatewithduration(0.5, animations: { cell.textlabel??.alpha = 0.0 }) } }

add empty return statement @ end of closure

uiview.animatewithduration(0.5, animations: { cell.textlabel??.alpha = 0.0 homecoming // <== add together })

you using compact (shortened) closure version, has implicit return. happens code read compiler as:

return cell.textlabel??.alpha = 0.0

and doesn't match closure signature, hence compilation error. adding homecoming statement makes explicit closure has no homecoming value.

swift ios8 uiviewanimation