Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7

I was helped by the following:

YouStoryboard.storyboard > YouViewController > Attributes inspector > Uncheck - Adjust scroll view insets.

I played around with it a bit more and it seems like this is a side-effect of setting the tableView's tableHeaderView = nil.

Because my tableView has a dynamically appearing tableHeaderView, when I need to hide the tableHeaderView, instead of doing self.tableView.tableHeaderView = nil;, I do:

self.tableView.tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, self.tableView.bounds.size.width, 0.01f)];

I like this solution better than setting a somewhat arbitrary contentInset.top because I use the contentInset.top dynamically as well. Having to remember to remove an extra 35px whenever I recalculate contentInset.top is tedious.

Try changing the contentInset property that UITableView inherits from UIScrollView.

self.tableView.contentInset = UIEdgeInsetsMake(-20, 0, 0, 0);

It's a workaround, but it works