Swift - Tinder effect

Question

How can I achieve Tinder effect in Swift?

I mean, I have an image and want to accept if I swipe to right and reject if I swipe to left.

I can do it with the

Answer 1

Check this out Swift 4 library!!

let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(self.beingDragged)) addGestureRecognizer(panGestureRecognizer)

func beingDragged(_ gestureRecognizer: UIPanGestureRecognizer) {

    xFromCenter = gestureRecognizer.translation(in: self).x
    yFromCenter = gestureRecognizer.translation(in: self).y
    switch gestureRecognizer.state {
    //%%% just started swiping
    case .began:
        originalPoint = self.center;
        break;

    //%%% in the middle of a swipe
    case .changed:
        let rotationStrength = min(xFromCenter / ROTATION_STRENGTH, ROTATION_MAX)
        let rotationAngel = .pi/8 * rotationStrength
        let scale = max(1 - fabs(rotationStrength) / SCALE_STRENGTH, SCALE_MAX)
        center = CGPoint(x: originalPoint.x + xFromCenter, y: originalPoint.y + yFromCenter)
        let transforms = CGAffineTransform(rotationAngle: rotationAngel)
        let scaleTransform: CGAffineTransform = transforms.scaledBy(x: scale, y: scale)
        self.transform = scaleTransform
        updateOverlay(xFromCenter)
        break;

    case .ended:
        afterSwipeAction()
        break;

    case .possible:break
    case .cancelled:break
    case .failed:break
    }
}

Hope this will work . Let me know

https://github.com/nickypatson/TinderSwipeView

thanks