Animate Scroll View to show same content with different values iOS Swift - ios

Question

I need to animate the scroll view to show the same views but with different values based on the selection on the segmented control.I need left to right & right to left slide animation to show different values on the same UI. I dont want to create duplicate views.

Answer 1

I had the exact same problem. Wanted to avoid creating multiple tableviews just for animation sake.
Here is how I solved it :
Basic idea : Take a screenshot of tableview and display it on the root view. Then, do a slide animation of tableview from Left to Right (or Right to left depending on the switching of segment control)
Code when swiped to right
func switchToLeft() {
let newIndex = currentIndex - 1
if newIndex > 0 {
let sS = showScreenShot()
self.tableView.animateFromLeft(0.5){
sS.removeFromSuperview()
}
//update data and RELOAD your tableview here
}
}
func showScreenShot() -> UIView{
let image = getScreenShot()
let imageView = UIImageView(image: image)
let blankView = UIView(frame: self.view.frame)
blankView.addSubview(imageView)
self.tableView.superview?.addSubview(blankView)
self.tableView.superview?.bringSubviewToFront(self.tableView)
return blankView
}
func getScreenShot() -> UIImage?{
let viewToRender = self.tableView
let contentOffset = self.tableView.contentOffset
UIGraphicsBeginImageContext(viewToRender.bounds.size)
let ctx = UIGraphicsGetCurrentContext()!
// need to translate the context down to the current visible portion of the tableview
CGContextTranslateCTM(ctx, 0, -contentOffset.y-tableHeaderHt)
viewToRender.layer.renderInContext(ctx)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}
Leaving off code for animateFromLeft as an exercise!