Grouped UITableView has 20px of extra padding at the bottom

Question

Grouped table views seem to have extra padding on the bottom in iOS 6 (iOS 5 does not have it), but I can\'t find any documentation that suggests this is correct / expected

Answer 1

Swift 3 code

class PaddingLessTableView : UITableView
{
    override func layoutSubviews() {
        self.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
        super.layoutSubviews()
    }
}

Answer 2

this solves the issue:

Obj-c

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
        return 0.1;
    }

Swift:

override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return 0.1
}

Answer 3

This is the only working solution I guess.I tried setting tableFooterView and tableHeaderView to nil. But nothing happened.Then the following solution worked .Returning zero "return 0;" has no effect.We should return the lowest possible height.

 - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
        return CGFLOAT_MIN;
    }

 - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
        return CGFLOAT_MIN;
    }

NOTE: This is what I got when printed the values.

CGFLOAT_MAX = 340282346638528859811704183484516925440.000000

CGFLOAT_MIN = 0.000000

Answer 4

In Swift 4.2 you can try setting table header with least normal magnitude height -

var frame = CGRect.zero
frame.size.height = .leastNormalMagnitude
tableView.tableHeaderView = UIView(frame: frame)

Answer 5

@frankWhite' solution works great, but here is a better solution to avoid typing 0.1, 0.001 or others to make it less ambiguous.

// Swift version
func tableView(tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {

    // remove bottom extra 20px space.
    return CGFloat.min
}

// Objective-C version
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {

    // remove bottom extra 20px space.
    return CGFLOAT_MIN;
} 

Answer 6

in Swift 3

override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return CGFloat.leastNormalMagnitude
}