How can I use hitTest to get underlying views if they are in a table?

Question

This code help me get the views beneath the main view:

    override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {

         let location = touches.first!.locationInView(self.view)

         let view = self.view.hitTest(location, withEvent: event)

         print("View: %@", NSStringFromClass((view?.classForCoder)!))
}

Is there some way to do this for a table? I have a table with cells and I want to see which cell the user is dragging over, or which view within the cell. My goal is to use a button to disable scroll, then be able to drag over the table and print out the cell or view within the cell as the user drags over them.

Answer 1

You can query the UITableView for the index-path based on cell subviews.

let point = cellSubView.convertPoint(cellSubView.bounds.origin, toView: tableView)
let index = tableView.indexPathForRowAtPoint(point)

indexPathForRowAtPoint() returns nil if point is outside of any row in the table

EDIT: to handle the touches on the tableView you have to set a gesture recognizer on it.

let tapGesture = UITapGestureRecognizer(target: self, action: #selector(didTapOnTableView(_:)))
tableView.addGestureRecognizer(tapGesture)

func didTapOnTableView(gesture: UITapGestureRecognizer){
    let touchPoint = gesture.locationInView(tableView)
    let index = tableView.indexPathForRowAtPoint(touchPoint)

    ...
}