检测UITableView何时滚动到底部

试试这个

 func scrollViewDidScroll(_ scrollView: UIScrollView) {    let height = scrollView.frame.size.height    let contentYoffset = scrollView.contentOffset.y    let distanceFromBottom = scrollView.contentSize.height - contentYoffset    if distanceFromBottom < height {        print(" you reached end of the table")    }}

或者你可以这样找到

if tableView.contentOffset.y >= (tableView.contentSize.height - tableView.frame.size.height) {        //you reached end of the table}