UITableView delegate action when tableView is scrolled?

问题

Is there a UITableView delegate-action that runs when the tableView is being scrolled?

This is probably really easy, but I can't find it.

Thank you :)

回答1:

UITableView is a subclass of UIScrollView and table's delegate can also act as a scroll view's delegate. So you can use all methods from UIScrollViewDelegate for your table (implementing them in table's delegate), e.g.

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

(scrollView parameter in this case will be pointer to your tableview)

回答2:

Swift 4

override func scrollViewDidScroll(_ scrollView: UIScrollView) {
    print("I'm scrolling!")
}

来源：https://stackoverflow.com/questions/3520901/uitableview-delegate-action-when-tableview-is-scrolled