51 lines
2.4 KiB
Swift
51 lines
2.4 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
|
|
|
|
import UIKit
|
|
import SessionUIKit
|
|
|
|
extension UIView {
|
|
|
|
func makeViewDraggable() {
|
|
let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(handlePanForDragging))
|
|
addGestureRecognizer(panGestureRecognizer)
|
|
}
|
|
|
|
@objc private func handlePanForDragging(_ gesture: UIPanGestureRecognizer) {
|
|
guard let superview: UIView = self.superview else { return }
|
|
|
|
let location = gesture.location(in: superview)
|
|
if let draggedView = gesture.view {
|
|
draggedView.center = location
|
|
|
|
if gesture.state == .ended {
|
|
if draggedView.frame.midX >= (superview.layer.frame.width / 2) {
|
|
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseIn, animations: {
|
|
draggedView.center.x = (superview.layer.frame.width - (draggedView.width() / 2) - Values.smallSpacing)
|
|
}, completion: nil)
|
|
}
|
|
else
|
|
{
|
|
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseIn, animations: {
|
|
draggedView.center.x = ((draggedView.width() / 2) + Values.smallSpacing)
|
|
}, completion: nil)
|
|
}
|
|
|
|
let topMargin = ((UIApplication.shared.keyWindow?.safeAreaInsets.top ?? 0) + Values.veryLargeSpacing)
|
|
if draggedView.frame.minY <= topMargin {
|
|
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseIn, animations: {
|
|
draggedView.center.y = (topMargin + (draggedView.height() / 2))
|
|
}, completion: nil)
|
|
}
|
|
|
|
let bottomMargin = (UIApplication.shared.keyWindow?.safeAreaInsets.bottom ?? 0)
|
|
if draggedView.frame.maxY >= superview.layer.frame.height {
|
|
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseIn, animations: {
|
|
draggedView.center.y = (superview.layer.frame.height - (draggedView.height() / 2) - bottomMargin)
|
|
}, completion: nil)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|