I have a bar graph which I’ve created. Each bar is a UIView. You can tap on each bar and it’ll display its value in a label above. How make it so that you could just slide/pan over the bars and it would select whichever bar your finger is over at that moment.
You need to track the finger position using
func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent)
and
func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent)
Then compute which bar it is and display information accordingly in touchesMoved.