In Swift, how would you write the scrollViewWillEndDragging withVelocity targetContentOffset method?

objective-c, scrollview, swift, uicollectionview, xcode

Solution

To answer from Christian: I was able to rewrite this in Swift. I set everything up as `Float` to do the math then converted to `CGFloat` as Christian mentioned was possible. His answer is technically correct, but showing a newer iOS developer how this is written in Swift was what I was looking for.

func scrollViewWillEndDragging(scrollView: UIScrollView!, withVelocity velocity: CGPoint, targetContentOffset: UnsafePointer<CGPoint>) {

     var pageWidth = Float(200 + 30)
     var currentOffset = Float(scrollView.contentOffset.x)
     var targetOffset = Float(targetContentOffset.memory.x)
     var newTargetOffset = Float(0)
     var scrollViewWidth = Float(scrollView.contentSize.width)

     if targetOffset > currentOffset {
         newTargetOffset = ceilf(currentOffset / pageWidth) * pageWidth
     } else {
         newTargetOffset = floorf(currentOffset / pageWidth) * pageWidth
     }

     if newTargetOffset < 0 {
         newTargetOffset = 0
     } else if newTargetOffset > currentOffset {
         newTargetOffset = currentOffset
     }

     Float(targetContentOffset.memory.x) == currentOffset

     scrollView.setContentOffset(CGPointMake(CGFloat(newTargetOffset), 0), animated: true)
 }

Problem

Original source