通过这段代码（不是我的），我设法将其集成起来，并且当我使用不带section的表时，它可以很好地工作。
现在，我需要将其集成到其中包含节的表中。因此iovorrei可以做同样的事情，能够在各个部分之间移动细胞。
我做了几次测试，但没有成功。你能推荐点什么吗？
谢谢！
override func viewDidLoad() {
super.viewDidLoad()
let longpress = UILongPressGestureRecognizer(target: self, action: #selector(longPressGestureRecognized(gestureRecognizer:)))
self.tableView.addGestureRecognizer(longpress)
}
func longPressGestureRecognized(gestureRecognizer: UIGestureRecognizer) {
let longpress = gestureRecognizer as! UILongPressGestureRecognizer
let state = longpress.state
let locationInView = longpress.location(in: self.tableView)
var indexPath = self.tableView.indexPathForRow(at: locationInView)
switch state {
case .began:
if indexPath != nil {
Path.initialIndexPath = indexPath
let cell = self.tableView.cellForRow(at: indexPath!) as! WayPointCell
My.cellSnapShot = snapshopOfCell(inputView: cell)
var center = cell.center
My.cellSnapShot?.center = center
My.cellSnapShot?.alpha = 0.0
self.tableView.addSubview(My.cellSnapShot!)
UIView.animate(withDuration: 0.25, animations: {
center.y = locationInView.y
My.cellSnapShot?.center = center
My.cellSnapShot?.transform = CGAffineTransform(scaleX: 1.05, y: 1.05)
My.cellSnapShot?.alpha = 0.98
cell.alpha = 0.0
}, completion: { (finished) -> Void in
if finished {
cell.isHidden = true
}
})
}
case .changed:
var center = My.cellSnapShot?.center
center?.y = locationInView.y
My.cellSnapShot?.center = center!
if ((indexPath != nil) && (indexPath != Path.initialIndexPath)) {
self.wayPoints.swapAt((indexPath?.row)!, (Path.initialIndexPath?.row)!)
//swap(&self.wayPoints[(indexPath?.row)!], &self.wayPoints[(Path.initialIndexPath?.row)!])
self.tableView.moveRow(at: Path.initialIndexPath!, to: indexPath!)
Path.initialIndexPath = indexPath
}
default:
let cell = self.tableView.cellForRow(at: Path.initialIndexPath!) as! WayPointCell
cell.isHidden = false
cell.alpha = 0.0
UIView.animate(withDuration: 0.25, animations: {
My.cellSnapShot?.center = cell.center
My.cellSnapShot?.transform = .identity
My.cellSnapShot?.alpha = 0.0
cell.alpha = 1.0
}, completion: { (finished) -> Void in
if finished {
Path.initialIndexPath = nil
My.cellSnapShot?.removeFromSuperview()
My.cellSnapShot = nil
}
})
}
}
func snapshopOfCell(inputView: UIView) -> UIView {
UIGraphicsBeginImageContextWithOptions(inputView.bounds.size, false, 0.0)
inputView.layer.render(in: UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
let cellSnapshot : UIView = UIImageView(image: image)
cellSnapshot.layer.masksToBounds = false
cellSnapshot.layer.cornerRadius = 0.0
cellSnapshot.layer.shadowOffset = CGSize(width: -5.0, height: 0.0)
cellSnapshot.layer.shadowRadius = 5.0
cellSnapshot.layer.shadowOpacity = 0.4
return cellSnapshot
}
struct My {
static var cellSnapShot: UIView? = nil
}
struct Path {
static var initialIndexPath: IndexPath? = nil
}