create swipe functionality similar to tinder in swift

To create a swipe functionality similar to Tinder in iOS using Swift, you can use UIPanGestureRecognizer to detect the swipe gesture and UIViewPropertyAnimator to animate the view when swiped.

Here's a high-level overview of how you can implement this feature:

  1. Create a container view that contains all your swipeable views (e.g. images, text, etc.).
  2. Attach a UIPanGestureRecognizer to the container view and handle the gesture recognizer's .began, .changed, and .ended states to move the view being swiped.
  3. In the .ended state of the gesture recognizer, calculate the velocity of the swipe and determine if it was a left or right swipe.
  4. If the swipe was towards the right, animate the view to move off the screen to the right and accept the swipe. If the swipe was towards the left, animate the view to move off the screen to the left and reject the swipe.
  5. Once the swipe animation is complete, remove the swiped view from the container view and replace it with a new view.

Here's some example code to get you started:

main.swift
// Create a pan gesture recognizer
let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(handlePanGesture(_:)))
containerView.addGestureRecognizer(panGestureRecognizer)

// Handle the pan gesture
@objc func handlePanGesture(_ recognizer: UIPanGestureRecognizer) {
    switch recognizer.state {
    case .began:
        // Handle the gesture began state
    case .changed:
        // Handle the gesture changed state
    case .ended:
        // Handle the gesture ended state
    default:
        break
    }
}

// Animate the swiped view
let animator = UIViewPropertyAnimator(duration: 0.3, curve: .easeInOut) {
    // Animate the view off the screen
    swipedView.alpha = 0
    swipedView.transform = CGAffineTransform(translationX: translationX, y: 0)
}

// Completion block for the animation
animator.addCompletion { (_) in
    // Remove the swiped view from the container view
    swipedView.removeFromSuperview()
    // Add a new view to the container view
    containerView.addSubview(newView)
}

// Start the animation
animator.startAnimation()
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