Swift addsubview and remove it

Question

I want to add sub view and remove with one tap. This is my code:

/* To add subview */

var testView: UIView = UIView(frame: CGRectMake(0, 0, 320, 56         


        

Answer 1

I've a view inside my custom CollectionViewCell, and embedding a graph on that view. In order to refresh it, I've to check if there is already a graph placed on that view, remove it and then apply new. Here's the solution

cell.cellView.addSubview(graph)
graph.tag = 10

now, in code block where you want to remove it (in your case gestureRecognizerFunction)

if let removable = cell.cellView.viewWithTag(10){
   removable.removeFromSuperview()
}

to embed it again

cell.cellView.addSubview(graph)
graph.tag = 10