Swift code for bubble animation (iOS)

Here’s an example of Swift code for a simple bubble animation using UIViewPropertyAnimator:

import UIKit

class ViewController: UIViewController {
    let bubbleView = UIView()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Set up the bubble view
        bubbleView.frame = CGRect(x: 150, y: 200, width: 100, height: 100)
        bubbleView.layer.cornerRadius = 50
        bubbleView.backgroundColor = UIColor.blue
        view.addSubview(bubbleView)
        
        // Start the bubble animation
        animateBubble()
    }
    
    func animateBubble() {
        let animator = UIViewPropertyAnimator(duration: 2.0, dampingRatio: 0.5) {
            // Specify the animation changes
            self.bubbleView.transform = CGAffineTransform(scaleX: 1.5, y: 1.5)
        }
        
        animator.addCompletion { _ in
            // Animation completed, reset the bubble view
            self.bubbleView.transform = CGAffineTransform.identity
            self.animateBubble() // Repeat the animation
        }
        
        animator.startAnimation()
    }
}

In this example, a bubble view is created as a blue circle with a rounded shape. The animateBubble() function creates a UIViewPropertyAnimator that animates the scaling of the bubble view to make it larger (scale factor of 1.5) over a duration of 2 seconds. After the animation completes, the completion block is executed, resetting the bubble view's transform back to the original scale and then calling animateBubble() again to repeat the animation in a loop.

Please note that you need to have a UIViewController subclass and add the necessary views to your view hierarchy for this code to work properly.

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