IOS - Keep UIView on top of UITableView on scroll

Question

I have a UITableView with a UIView on top. I want the UIView to stick to the top as the tableView cells scroll over it.

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
    if (self.tableView.contentOffset.y > 0) {
        CGRect newframe = self.publicTopView.frame;
        newframe.origin.y = -self.tableView.contentOffset.y;
        self.publicTopView.frame = newframe;
        NSLog(@"After: %f", self.publicTopView.frame.origin.y);
    }
}

Answer 1

You need to set your table view header view to the view you want on top.

Add this code to you viewDidLoad

self.tableView.tableHeaderView = self.publicTopView

Answer 2

I'm not certain what you're trying to accomplish, but I have a guess at what is wrong. As you scroll your contentOffset will continue to change and let's say your tableView has a content size height of 1500, then your contentOffset will eventually be larger than the height of your view controllers view. Now see that you are putting that contentOffset into the origin.y of your publicTopView . So your publicTopView could possibly be moving too much, even offscreen depending on how large your tableview's content size is.