How to set the height of UISegmentedControl subclass without using auto layout?

Question

I have created a UISegmentedControl subclass that I would like to use as the section header view for a UITableView.

I would like the custom UISegmentedControl subclass to have a height of 50pt.

I am aware that I can create a height constraint for this. However, after setting the height constraint, if this segmented control is used as the section header of the table view, then auto layout errors are shown ( see question ).

I tried setting height by calling the init(frame:) method with appropriate height, but this has no effect.

Is there a way to set the height of the UISegmentedControl subclass without using auto layout?

score 0 · Accepted Answer · answered May 20 '19 at 12:34

You can simply use frames to set the size and position of UISegmentedControl inside a sectionHeaderView, i.e.

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    let view = UIView()
    let segmentedControl = UISegmentedControl(frame: CGRect(x: 10, y: 10, width: 200, height: 50))
    segmentedControl.insertSegment(withTitle: "First", at: 0, animated: false)
    segmentedControl.insertSegment(withTitle: "Second", at: 1, animated: false)
    segmentedControl.selectedSegmentIndex = 0
    view.addSubview(segmentedControl)
    return view
}

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return 70
}

Screenshot:

How to set the height of UISegmentedControl subclass without using auto layout?

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