我在splitViewController中有这2个tableViews(所有可用的服务和提供的服务).这个想法是,然后单元格移动到屏幕中心,它移动到服务提供表视图.
一切正常,除了触摸`.began,单元格被添加到覆盖navBar的tableView的顶部.
我希望在触摸开始的地方添加视图/单元格,在我正在触摸的“ServiceCell”之上.我尝试将它添加到splitViewController.view但我认为我的逻辑有问题.
这里的代码:
func didLongPressCell (gr: UILongPressGestureRecognizer) {
let serviceCell:ServiceCell = gr.view as! ServiceCell
switch gr.state {
case .began:
let touchOffsetInCell = gr.location(in: gr.view)
let dragEvent = DragganbleServiceCell()
mDraggableServiceCell = dragEvent.makeWithServiceCell(serviceCell: serviceCell, offset: self.tableView.contentOffset, touchOffset: touchOffsetInCell)
self.splitViewController?.view.addSubview(mDraggableServiceCell!)
case .changed:
let cp:CGPoint = gr.location(in: self.view)
let newOrigin = CGPoint(x: (cp.x), y: (cp.y) - (mDraggableServiceCell?.touchOffset?.y)!)
UIView.animate(withDuration: 0.1, animations: {
self.mDraggableServiceCell?.frame = CGRect(origin: newOrigin, size: (self.mDraggableServiceCell?.frame.size)!)
})
case .ended:
let detailViewNC = self.splitViewController?.viewControllers[1] as! UINavigationController
let detailView = detailViewNC.topViewController as! ServiceOfferedTableViewController
if (mDraggableServiceCell?.frame.intersects(detailView.tableView.frame))! {
onDragEnded(serviceCell:serviceCell)
}else{
mDraggableServiceCell?.removeFromSuperview()
}
default:
print("Any other action?")
}
}
在DraggableServiceCell中:
class DragganbleServiceCell: ServiceCell {
var originalPosition:CGPoint?
var touchOffset:CGPoint?
func makeWithServiceCell(serviceCell:ServiceCell, offset:CGPoint, touchOffset:CGPoint)->DragganbleServiceCell{
let newFrame = CGRect(x: serviceCell.frame.origin.x, y: serviceCell.frame.origin.y, width: serviceCell.frame.size.width, height: serviceCell.frame.size.height)
let dragCell = DragganbleServiceCell(frame: newFrame)
dragCell.touchOffset = touchOffset
dragCell.service = serviceCell.service
dragCell.serviceName.text = serviceCell.service?.service_description
return dragCell
}
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.containingView.backgroundColor = UIColor.rgb(230, green: 32, blue: 31)
self.serviceName.textColor = .white
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
最佳答案 您的问题出在makeWithServiceCell(serviceCell:ServiceCell,offset:CGPoint,touchOffset:CGPoint) – > DragganbleServiceCell. serviceCell的框架相对于包含它的tableView而不是UISplitViewController的视图,您永远不会使用offset或touchOffset值来纠正它.因此,尝试以与.changed事件相同的方式调整框架.
您甚至可能会发现UIView上的convert(_:to :)方法可能对两个视图之间的CGPoint转换很有用.查看更多详情here.