How to hide first section header in UITableView grouped style

Question

As the design of table views using the grouped style changed considerably with iOS 7  I would like to hide  or remove  the first section header  So far I haven t managed to achieve it   Somewhat simplified  my code looks like this   -  CGFloat  tableView  UITableView   tableView heightForHeaderInSection  NSInteger section       if  section    0          return 0 0f      return 32 0f     -  UIView   tableView  UITableView   tableView viewForHeaderInSection  NSInteger section       if  section    0            UIView  view     UIView alloc  initWithFrame  CGRectMake 0 0f  0 0f  640 0f  0 0f            return view            return nil     -  NSString   tableView  UITableView    tableView titleForHeaderInSection  NSInteger section       if  section    0            return nil        else              return some string here               If I return a height of 0  the other two methods will never be called with the section index 0  Yet an empty section header is still drawn with the default height   In iOS 6  the two methods are called  However  the visible result is the same    If I return a different value  the section header gets the specified height   If I return 0 01  it s almost correct  However  when I turn on  Color Misaligned Images  in the simulator  it marks all table view cells  which seems to be a logical consequence    The answers to the question UITableView  hide header from empty section seem to indicate that some people were successful in hiding the section header  But it might apply to the plain style  instead of the grouped one    The best compromise so far is returning the height 0 5  resulting in a somewhat thicker line below the navigation bar  However  I d appreciate if somebody knows how the first section header can be completely hidden   Update  According to caglar s analysis  https   stackoverflow com a 19056823 413337   the problem only arises if the table view is contained in a navigation controller

User · Answer

this way is OK   override func tableView tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat       if section    0           return CGFloat min           return 25    override func tableView tableView  UITableView  viewForHeaderInSection section  Int  - gt  UIView        if section    0           return nil      else

User · Answer

I can t comment yet but thought I d add that if you have a UISearchController on your controller with UISearchBar as your tableHeaderView  setting the height of the first section as 0 in heightForHeaderInSection does indeed work   I use self tableView contentOffset   CGPointMake 0  self searchController searchBar frame size height   so that the search bar is hidden by default   Result is that there is no header for the first section  and scrolling down will show the search bar right above the first row

User · Answer

This is how to hide the first section header in UITableView  grouped style    Swift 3 0  amp  Xcode 8 0 Solution   The TableView s delegate should implement the heightForHeaderInSection method Within the heightForHeaderInSection method  return the least positive number   not zero    func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat        let headerHeight  CGFloat      switch section       case 0             hide the header         headerHeight   CGFloat leastNonzeroMagnitude     default          headerHeight   21            return headerHeight

User · Answer

The answer was very funny for me and my team  and worked like a charm   In the Interface Builder  Just move the tableview under another view in the view hierarchy    REASON   We observed that this happens only for the First View in the View Hierarchy  if this first view is a UITableView  So  all other similar UITableViews do not have this annoying section  except the first  We Tried moving the UITableView out of the first place in the view hierarchy  and everything was working as expected

User · Answer

Try this if you want to remove all section header completely   func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat       return CGFloat leastNormalMagnitude    func tableView   tableView  UITableView  heightForFooterInSection section  Int  - gt  CGFloat       return CGFloat leastNormalMagnitude

User · Answer

I have a workaround that seems reasonably clean to me  So I m answering my own question   Since 0 as the first section header s height doesn t work  I return 1  Then I use the contentInset to hide that height underneath the navigation bar   Objective-C   -  CGFloat  tableView  UITableView   tableView heightForHeaderInSection  NSInteger section       if  section    0              return 1 0f      return 32 0f     -  NSString   tableView  UITableView    tableView titleForHeaderInSection  NSInteger section       if  section    0            return nil        else              return some string here              -  void  viewDidLoad        super viewDidLoad         self tableView contentInset   UIEdgeInsetsMake -1 0f  0 0f  0 0f  0 0       Swift   override func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat       return section    0   1 0   32    override func viewDidLoad         super viewDidLoad        tableView contentInset   UIEdgeInsets top  -1  left  0  bottom  0  right  0

User · Answer

Use this trick for grouped type tableView  Copy paste below code for your table view in viewDidLoad method   tableView tableHeaderView     UIView alloc  initWithFrame CGRectMake 0 0f  0 0f  tableView bounds size width  0 01f

User · Answer

The following worked for me in with iOS 13 6 and Xcode 11 6 with a UITableViewController that was embedded in a UINavigationController  override func tableView   tableView  UITableView  viewForHeaderInSection section  Int  - gt  UIView        nil    override func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat        zero    No other trickery needed   The override keywords aren t needed when not using a UITableViewController  i e  when just implemented the UITableViewDelegate methods    Of course if the goal was to hide just the first section s header  then this logic could be wrapped in a conditional as such  override func tableView   tableView  UITableView  viewForHeaderInSection section  Int  - gt  UIView        if section    0           return nil       else              Return some other view             override func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat       if section    0           return  zero       else              Return some other height

User · Answer

Swift3   heightForHeaderInSection works with 0  you just have to make sure header is set to clipsToBounds   func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat          return 0     if you don t set clipsToBounds hidden header will be visible when scrolling   func tableView   tableView  UITableView  willDisplayHeaderView view  UIView  forSection section  Int        guard let header   view as  UITableViewHeaderFooterView else   return        header clipsToBounds   true

User · Answer

In Swift 4 2 and many earlier versions  instead of setting the first header s height to 0 like in the other answers  you can just set the other headers to nil  Say you have two sections and only want the second one  i e   1  to have a header  That header will have the text Foobar   override func tableView   tableView  UITableView  titleForHeaderInSection section  Int  - gt  String        return section    1    Foobar    nil

User · Answer

Here is how to get rid of the top section header in a grouped UITableView  in Swift   tableView tableHeaderView   UIView frame  CGRect x  0  y  0  width  0  height  CGFloat leastNormalMagnitude

User · Answer

Update 9 19 17   Old answer doesn t work for me anymore in iOS 11  Thanks Apple  The following did   self tableView sectionHeaderHeight   UITableViewAutomaticDimension  self tableView estimatedSectionHeaderHeight   20 0f  self tableView contentInset   UIEdgeInsetsMake -18 0  0 0f  0 0f  0 0     Previous Answer   As posted in the comments by Chris Ostomo the following worked for me   -  CGFloat tableView  UITableView   tableView heightForHeaderInSection  NSInteger section       return CGFLOAT MIN     to get rid of empty section header

User · Answer

I just copied your code and tried  It runs normally  tried in simulator   I attached result view  You want such view  right  Or I misunderstood your problem

User · Answer

easiest by far is to return nil  or    in func tableView   tableView  UITableView  titleForHeaderInSection section  Int  - gt  String  for a section where you do not wish to display header

User · Answer

Swift Version  Swift 5 1 Mostly  you can set height in tableView delegate like this   func tableView   tableView  UITableView  viewForHeaderInSection section  Int  - gt  UIView       return UIView frame  CGRect x  0  y  0  width  view width  height  CGFloat leastNormalMagnitude     func tableView   tableView  UITableView  heightForHeaderInSection section  Int  - gt  CGFloat      return CGFloat leastNormalMagnitude     Sometimes when you created UITableView with Xib or Storyboard  the answer of up does not work  you can try the second solution   let headerView   UIView frame  CGRect x  0  y  0  width  0  height  CGFloat leastNormalMagnitude   self tableView tableHeaderView   headerView   Hope it works for you

[ios] How to hide first section header in UITableView (grouped style)

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