How to Force a Uitableview to Hide the Separator Between Empty Cells

Can I force a UITableView to hide the separator between empty cells?

You can achieve what you want by defining a footer for the tableview. See this answer for more details:Eliminate Extra separators below UITableView

Hide remove separator line if UITableViewCells are empty

You can hide UITableView's standard separator line by using any one of the below snippets of code.
The easiest way to add a custom separator is to add a simple UIView of 1px height:

UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 1)];
separatorLineView.backgroundColor = [UIColor clearColor]; // set color as you want.
[cell.contentView addSubview:separatorLineView];

OR

    self.tblView=[[UITableView alloc] initWithFrame:CGRectMake(0,0,320,370) style:UITableViewStylePlain];
    self.tblView.delegate=self;
    self.tblView.dataSource=self;
    [self.view addSubview:self.tblView];

    UIView *v = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 10)];
    v.backgroundColor = [UIColor clearColor];
    [self.tblView setTableHeaderView:v];
    [self.tblView setTableFooterView:v];
    [v release];

OR

- (float)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
    // This will create a "invisible" footer
    return 0.01f;
}

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    // To "clear" the footer view
    return [[UIView new] autorelease];
}

OR

And also check nickfalk's answer, it is very short and helpful too.
And you should also try this single line,

self.tableView.tableFooterView = [[UIView alloc] init];

Not sure but it's working in all the version of iOS that I checked, with iOS 5 and later, up to iOS 7.

Eliminate extra separators below UITableView

Interface builder (iOS 9+)

Just drag a UIView to the table. In storyboard, it will sit at the top below your custom cells. You may prefer to name it "footer".

Here it is shown in green for clarity, you'd probably want clear color.

Note that by adjusting the height, you can affect how the "bottom bounce" of the table is handled, as you prefer. (Height zero is usually fine).

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To do it programmatically:

Swift

override func viewDidLoad() {
    super.viewDidLoad()
    self.tableView.tableFooterView = UIView()
}

Objective-C

iOS 6.1+

- (void)viewDidLoad 
{
    [super viewDidLoad];

    // This will remove extra separators from tableview
    self.tableView.tableFooterView = [UIView new];
}

or if you prefer,

    self.tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];

Historically in iOS:

Add to the table view controller...

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
     // This will create a "invisible" footer
     return CGFLOAT_MIN;
 }

and if necessary...

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{        
    return [UIView new];

    // If you are not using ARC:
    // return [[UIView new] autorelease];
}

Hide separator line on one UITableViewCell

in viewDidLoad, add this line:

self.tableView.separatorColor = [UIColor clearColor];

and in cellForRowAtIndexPath:

for iOS lower versions

if(indexPath.row != self.newCarArray.count-1){
    UIImageView *line = [[UIImageView alloc] initWithFrame:CGRectMake(0, 44, 320, 2)];
    line.backgroundColor = [UIColor redColor];
    [cell addSubview:line];
}

for iOS 7 upper versions (including iOS 8)

if (indexPath.row == self.newCarArray.count-1) {
    cell.separatorInset = UIEdgeInsetsMake(0.f, cell.bounds.size.width, 0.f, 0.f);
}

Remove separator line for only one cell

On iOS 8 you need to use:

cell.layoutMargins = UIEdgeInsetsZero

If you want to be compatible with iOS 7 as well you should do following:

if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
    [cell setSeparatorInset:UIEdgeInsetsZero];
}

if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
    [cell setLayoutMargins:UIEdgeInsetsZero];
}

ADD: If previous didn't work - use this. (from answer below)

 cell.separatorInset = UIEdgeInsetsMake(0, CGFLOAT_MAX, 0, 0);

If none of above worked, you can do:

self.tableView.separatorColor = [UIColor clearColor];

but this will leave 1 pixel empty space, not really removing a line, more making it transparent.

Grouped UITableview remove outer separator line

I just worked out a solution, as the cell has contentView which is a UIView, so I think you can just focus on the bottomline of contentView.

Here is my code:

first, you have to make the separator to clear

tableView.separatorColor = UIColor.clear

Second, in the cellForRowAt function:

let bottomBorder = CALayer()

bottomBorder.frame = CGRect(x: 0.0, y: 43.0, width: cell.contentView.frame.size.width, height: 1.0)
bottomBorder.backgroundColor = UIColor(white: 0.8, alpha: 1.0).cgColor
cell.contentView.layer.addSublayer(bottomBorder)

here you will see the UI like this:

iOS - Show Separator in empty cells of UITableView

Thanks all for your Help. It seems i mistakingly added another table as a subview of my Tableview in StoryBoard or the prototype cell that i added initially was not removed (might be some problem with xcode). And that caused that unusual behavior of not showing the separators in empty rows.

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