iOS 8 UITableView separator inset 0 not working

As to what cdstamper suggested instead of the table view, adding below lines in the cell's layoutSubview method works for me.

- (void)layoutSubviews
{
[super layoutSubviews];

if ([self respondsToSelector:@selector(setSeparatorInset:)])
[self setSeparatorInset:UIEdgeInsetsZero];

if ([self respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)])
{
[self setPreservesSuperviewLayoutMargins:NO];;
}

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

[![enter image description here][1]][1]


[1]:

use storyboard to Change Separator inset Custom left 0 and right 0,
if you want to hide separator to None
see above image

With **Swift 2.2**

**create `UITableViewCell extension`**

import UIKit

extension UITableViewCell {
func removeMargins() {

if self.respondsToSelector(Selector("setSeparatorInset:")) {
self.separatorInset = UIEdgeInsetsZero
}

if self.respondsToSelector(Selector("setPreservesSuperviewLayoutMargins:")) {
self.preservesSuperviewLayoutMargins = false
}

if self.respondsToSelector(Selector("setLayoutMargins:")) {
self.layoutMargins = UIEdgeInsetsZero
}
}
}

**Now you can use in your `cellForRowAtIndex`**

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.removeMargins()//To remove seprator inset
}

In Swift you can use this

cell.selectionStyle = UITableViewCellSelectionStyle.None
cell.preservesSuperviewLayoutMargins = false
cell.separatorInset = UIEdgeInsetsZero
cell.layoutMargins = UIEdgeInsetsZero

In Swift it's slightly more annoying because `layoutMargins` is a property, so you have to override the getter *and* setter.

override var layoutMargins: UIEdgeInsets {
get { return UIEdgeInsetsZero }
set(newVal) {}
}

This will effectively make `layoutMargins` readonly, which in my case is fine.

This is the code that's working for me, in Swift:

override func viewDidLoad()
{
super.viewDidLoad()
...
if tableView.respondsToSelector("setSeparatorInset:") {
tableView.separatorInset = UIEdgeInsetsZero
}
}

func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell,forRowAtIndexPath indexPath: NSIndexPath)
{
if cell.respondsToSelector("setSeparatorInset:") {
cell.separatorInset.left = CGFloat(0.0)
}
if tableView.respondsToSelector("setLayoutMargins:") {
tableView.layoutMargins = UIEdgeInsetsZero
}
if cell.respondsToSelector("setLayoutMargins:") {
cell.layoutMargins.left = CGFloat(0.0)
}
}

This seems the cleanest to me (for now), as all the cell/tableView edge/margin adjustments are done in the `tableView:willDisplayCell:forRowAtIndexPath:` method, without cramming unneccessary code into `tableView:cellForRowAtIndexPath:`.

Btw, I'm only setting the cell's left separatorInset/layoutMargins, because in this case I don't want to screw up my constraints that I have set up in my cell.

**Code updated to Swift 2.2 :**

override func viewDidLoad() {
super.viewDidLoad()

if tableView.respondsToSelector(Selector("setSeparatorInset:")) {
tableView.separatorInset = UIEdgeInsetsZero
}
}

override func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell,forRowAtIndexPath indexPath: NSIndexPath) {
if cell.respondsToSelector(Selector("setSeparatorInset:")) {
cell.separatorInset.left = CGFloat(0.0)
}
if tableView.respondsToSelector(Selector("setLayoutMargins:")) {
tableView.layoutMargins = UIEdgeInsetsZero
}
if cell.respondsToSelector(Selector("setLayoutMargins:")) {
cell.layoutMargins.left = CGFloat(0.0)
}
}

simply put this two lines in cellForRowAtIndexPath method

* if you want to all separator lines are start from zero
[cell setSeparatorInset:UIEdgeInsetsZero];
[cell setLayoutMargins:UIEdgeInsetsZero];

if you want to Specific separator line are start from zero suppose here is last line is start from zero

if (indexPath.row == array.count-1)
{
[cell setSeparatorInset:UIEdgeInsetsZero];
[cell setLayoutMargins:UIEdgeInsetsZero];
}
else
tblView.separatorInset=UIEdgeInsetsMake(0, 10, 0, 0);

For me none has worked except this workaround (**Swift 3.0**):

extension UIColor {
static func colorWith(hex:String, alpha: CGFloat) -> UIColor {
var cString = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()

if cString.hasPrefix("#") {
cString.remove(at: cString.startIndex)
}

if cString.characters.count != 6 {
return UIColor.gray
}

var rgbValue:UInt32 = 0
Scanner(string: cString).scanHexInt32(&rgbValue)

return UIColor(red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0,
green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0,
blue: CGFloat( rgbValue & 0x0000FF) / 255.0,
alpha: alpha)
}
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: cellReuseIdendifier, for: indexPath)

cell.backgroundColor = UIColor.colorWith(hex: "c8c7cc", alpha: 1) // same color of line separator

return cell
}

Just add below code can solve this program.

Good luck to you!

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {

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

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

}

**Swift 3.0 example:**

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
// removing seperator inset
if cell.responds(to: #selector(setter: UITableViewCell.separatorInset)) {
cell.separatorInset = .zero
}
// prevent the cell from inheriting the tableView's margin settings
if cell.responds(to: #selector(setter: UIView.preservesSuperviewLayoutMargins)) {
cell.preservesSuperviewLayoutMargins = false
}
// explicitly setting cell's layout margins
if cell.responds(to: #selector(setter: UITableViewCell.layoutMargins)) {
cell.layoutMargins = .zero
}
}