How to make a view follow my finger to move? Direction is from left to right

Question

I want to implement a function similar to a slider. For example, the button follows the finger and moves from left to right. Like this:

Should I use UISwipeGestureRecognizer. Or UIPanGestureRecognizer？ I used a swipe gesture but I don't know how to update the frame.

var swipeRight = UISwipeGestureRecognizer(target: self, action: 
#selector(self.respondToSwipeGesture(sender:)))
swipeView.isUserInteractionEnabled = true
swipeView.addGestureRecognizer(swipeRight)

Answer 1

You can add the pan gesture to the view you want to drag. The method for drag looks like this:

func draggedView(_ sender: UIPanGestureRecognizer) {
    let translation = sender.translation(in: self.view)
    draggableView.center = CGPoint(x: draggableView.center.x + translation.x, y: 
    draggableView.center.y)
    sender.setTranslation(CGPoint.zero, in: self.view)
}

You can use translation x or y depending if you want to move the view horizontally or vertically, or both.