Transform collection view cell container after Swipe to right and left

Question

I'm trying to add Swipe to right and left to collection view cell to transform the container to the right and left with a certain angle

Here is my initial setup

   private func setupGestures() {
        let swipeToRight = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeRight))
        swipeToRight.direction = .right
        container.addGestureRecognizer(swipeToRight)
        
        let swipeToLeft = UISwipeGestureRecognizer(target: self, action: #selector(respondToSwipeLeft))
        swipeToLeft.direction = .left
        container.addGestureRecognizer(swipeToLeft)
        
    }
    
    @objc func respondToSwipeRight(gesture: UIGestureRecognizer) {
        
        let angle = CGFloat(Double.pi/2)
        
        UIView.animate(withDuration: 0.5) {
            self.container.transform = CGAffineTransform(rotationAngle: angle)
        }
    }
    
    
    @objc func respondToSwipeLeft(gesture: UIGestureRecognizer) {
        
        let angle = -CGFloat(Double.pi/2)
        
        UIView.animate(withDuration: 0.5) {
            self.container.transform = CGAffineTransform(rotationAngle: angle)
        }
    }

But it completely rotate the container, which is I don't want, I want to make it something like it, and turn back to it's initial position after a sec or two

[![how it should transform][1]][1]

And it would be so awesome that move based on Swiping position, I mean not automatically goes to that level of position, move with finger tip and when it reach there, just stop moving.

Could anyone help me to implement it, I have no idea how I can do it

Many thanks

Answer 1

Adding completion in UIView.animate in order to turn back to initial state. After a sec or two is depends on your duration in UIView.animate

Code will be like this

UIView.animate(withDuration: 0.5, animations: {
    self.container.transform = CGAffineTransform(rotationAngle: 0.5)
}, completion: {
    _ in
    // turn back to the previous before transform
    self.container.transform = .identity
})

And for your second question, you can implement with touchesBegan and touchesMoved or add PanGesture to handle changing position container view frame like you want.