可能的行动:

1

func scrollToFirstRow() {
    let indexPath = NSIndexPath(forRow: 0, inSection: 0)
    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Top, animated: true)
}

2

func scrollToLastRow() {
    let indexPath = NSIndexPath(forRow: objects.count - 1, inSection: 0)
    self.tableView.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Bottom, animated: true)
}

3

func scrollToSelectedRow() {
    let selectedRows = self.tableView.indexPathsForSelectedRows
    if let selectedRow = selectedRows?[0] as? NSIndexPath {
        self.tableView.scrollToRowAtIndexPath(selectedRow, atScrollPosition: .Middle, animated: true)
    }
}

4

func scrollToHeader() {
    self.tableView.scrollRectToVisible(CGRect(x: 0, y: 0, width: 1, height: 1), animated: true)
}

5

func scrollToTop(){
    self.tableView.setContentOffset(CGPointMake(0,  UIApplication.sharedApplication().statusBarFrame.height ), animated: true)
}

禁用滚动到顶部:

func disableScrollsToTopPropertyOnAllSubviewsOf(view: UIView) {
    for subview in view.subviews {
        if let scrollView = subview as? UIScrollView {
            (scrollView as UIScrollView).scrollsToTop = false
        }
        self.disableScrollsToTopPropertyOnAllSubviewsOf(subview as UIView)
    }
}

根据需求修改和使用它。

斯威夫特4

  func scrollToFirstRow() {
    let indexPath = IndexPath(row: 0, section: 0)
    self.tableView.scrollToRow(at: indexPath, at: .top, animated: true)
  }

迅速:

self.scripSearchView.quickListTbl?.scrollToRowAtIndexPath(indexPath, atScrollPosition: .Top, animated: true)

最好不要使用NSIndexPath(空表)，也不要假设顶点是CGPointZero(内容嵌入)，这就是我使用的-

[tableView setContentOffset:CGPointMake(0.0f, -tableView.contentInset.top) animated:YES];

希望这能有所帮助。

这段代码让你滚动一个特定的部分顶部

CGRect cellRect = [tableinstance rectForSection:section];
CGPoint origin = [tableinstacne convertPoint:cellRect.origin 
                                    fromView:<tableistance>];
[tableinstance setContentOffset:CGPointMake(0, origin.y)];

如果你需要使用Objective-C或者你仍然喜欢:

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
    [_tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES];

func scrollToTop() {
        NSIndexPath *topItem = [NSIndexPath indexPathForItem:0 inSection:0];
        [tableView scrollToRowAtIndexPath:topItem atScrollPosition:UITableViewScrollPositionTop animated:YES];
}

调用这个函数，无论你想让UITableView滚动到顶部