Yesterday I took a look at a quite big project from someone else and I noticed that wherever the intention was not to have the separator generated by UITableView, it is done by setting tableView.separatorColor = .clear instead of tableView.separatorStyle = .none.
Now I wondered If there might be a reason for that.. Is the result any different or does changing the style property mess up the constraints somehow because 0.5p are missing?
Yes, you are thinking in right direction.
tableView.separatorColor = .clear // It clears the separator background color
tableView.separatorStyle = .none // It removes the separator from superview(UITableCell)
Case Study:
Consider height of UITableViewCell is set to 50.
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 50
}
If there are a UILabel in UITableViewCell and you have provided the leading, trailing, top and bottom constraint then tableView.separatorStyle = .none will not cause any constraint-break as height of UILabel will be auto-increased.
But if above case if you have applied height-constraint as well, then there will be difference of 0.5 pixel in calculated height and constraint height.
It is not necessarily happen every-time but to prevent this condition, we should use tableView.separatorColor = .clear.