How to remove section header separator in iOS 15 - ios

In iOS 15, UITableView adds a separator between a section header and the first cell:
How can I hide or remove that separator?
A few notes:
The header is a custom view returned from tableView(_:viewForHeaderInSection:).
When looking at the view debugger, I can see that the extra separator is actually a subview of the first cell, which now has a top and a bottom separator.
Other than setting tableView.separatorInset to change the inset of cell separators, this is a completely standard table view with no customizations.

Option 1:
Maybe by using UITableViewCellSeparatorStyleNone with the table view and replacing the system background view of the cell with a custom view which only features a bottom line?
Option 2: Using hint from https://developer.apple.com/forums/thread/684706
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 150000 // only Xcode 13+ needs and can compile this
if (#available(iOS 15.0, *)) {
[self.tableview setSectionHeaderTopPadding:0.0f];
}
#endif
}

I had a similar issue, but it was due to the table header view suddenly showing as a separator on iOS 15. The only thing that worked for me was:
if #available(iOS 15.0, *)
{
tableView.tableHeaderView = UIView()
}

iOS 15, Swift 5
To remove the line between the section header and your first cell, you should set sectionHeaderTopPadding to zero while configuring your UITableView.
if #available(iOS 15.0, *) {
tableView.sectionHeaderTopPadding = 0.0
}

I believe tableView.separatorStyle = .none should do the trick.

I was able to fix it with this code.
if (#available(iOS 15.0, *)) {
self.tableView.tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, CGFLOAT_MIN)];
[self.tableView setSectionHeaderTopPadding:0.0f];
}

In my case I wanted to use the native section header and the top padding different than 0, so this should work if you want to remove the extra top and bottom separators on each section:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Dequeue cell and set it up ...
if indexPath.row == 0 {
let separator = cell.subviews.filter({
$0.frame.minY == 0 && $0 !== cell.contentView
}).first
separator?.isHidden = true
cell.separatorInset.left = 0 // Or whatever desired inset
}
if indexPath.row + 1 == dataSource[indexPath.section].count {
cell.separatorInset.left = cell.bounds.width
} else {
cell.separatorInset.left = 0 // Or whatever desired inset
}
return cell
}

There can be two solutions to your problem/
One is
self.tableView.separatorColor = self.tableView.backgroundColor
this is a trick solution, it makes outer lines "disappear" and keep separator lines visible
second is
change your tableview type from grouped to plain if grouping not used.

Related

How to remove uicollectionview top padding swift 4 iOS 11?

I tried lots of answer from stack overflow. But I did not get relevant answer for iOS 11. As you can notice I got space at top in UICollectionview. Please help me to fix this issue.
ScreenShort :
What I tried :
1) self.automaticallyAdjustsScrollViewInsets = false
This one is deprecated in iOS 11
2) Uncheck "Adjust Scroll View insets"
3) This link
automaticallyAdjustsScrollViewInsets is deprecated in iOS 11. Try to set contentInsetAdjustmentBehavior for iOS 11.
if #available(iOS 11.0, *) {
collectionView.contentInsetAdjustmentBehavior = .never
} else {
self.automaticallyAdjustsScrollViewInsets = false
}
Try adding edgesForExtendedLayout = [] in your viewDidLoad
as well as;
if #available(iOS 11.0, *) {
collectionView.contentInsetAdjustmentBehavior = .never
} else {
self.automaticallyAdjustsScrollViewInsets = false
}
I had the same problem in Xcode 11. And here is my solution:
Okay so :
The spacing issue could be mostly in part because you have the collectionView inside the UIView. Which by the way you should only use 1 collection view and you only need 1 view controller.
1.
Just put the collection view inside the first VC and replace the UIView with the collectionView.
2.
Then just drag another prototype reusable cell into the collection view. You can have multiple custom cells in one collection view in storyboard! Make cell 1 your first custom collection view cell type and cell 2 your second. When the segment bar switches just use a function to change the data the collectionView will present when you reload the collectionView, you can change the type of cell and array the collection view will present in the UICollectionViewDatasource methods.
Something along these lines:
enum MediaTypes {
case pictures
case videos
}
fileprivate var arrayToPresent: MediaTypes = .pictures
...
func segmentChanged(){
switch self.segmentController.selectedIndex {
case 1:
self.arrayToPresent = .videos
default:
self.arrayToPresent = .pictures
}
//Logic to reload Collection View
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
switch self.arrayToPresent {
case .pictures:
let cell = collectionView.deq... as! PictureCollectionViewCell
return cell
case .videos:
let cell = collectionView.deq... as! VideoCollectionViewCell
return cell
}
}

Removing the separator between section header & uitableviewcell

How do I remove the lines indicated in the picture? I have tried the following suggestions and none of them have worked for me,
How do I remove the borders of a UITableView?
Remove separator line for only one cell
Hide separator line on one UITableViewCell
This is my current code in cellForRowAt:
if (indexPath.row == place_sections[indexPath.section].rows.count - 1) {
cell.separatorInset.left = 1000
//cell.layer.borderWidth = 0
//cell.separatorInset = UIEdgeInsetsMake(0, 160, 0, 160);
}
if (indexPath.row == 0) {
cell.separatorInset.left = 1000
//cell.layer.borderWidth = 0
//cell.separatorInset = UIEdgeInsetsMake(0, 160, 0, 160);
// self.tableview.tableFooterView = UIView(frame: CGRect(x: 0, y: 0, width: self.tableview.frame.width, height: 1))
}
Thank you
Separator between header and cell belongs to first cell in section.
When I used standard UITableViewHeaderFooterView and UITableViewCell I managed to hide line between header and cell via this code:
let contentView = cell.contentView
if
// this separator is subview of first UITableViewCell in section
indexPath.row == 0,
// truing to find it in subviews
let divider = cell.subviews.filter({ $0.frame.minY == 0 && $0 !== contentView }).first
{
divider.isHidden = true
}
This piece of code must be invoked in tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath)
This is objective c code, this help you
http://www.iostute.com/2015/04/expandable-and-collapsable-tableview.html
For both swift and objective c
http://www.anexinet.com/blog/expandable-collapsible-uitableview-sections/
The 1st link has custom header view, so border lines won't come here.
Comment this code in viewForHeaderInSection function
// /********** Add a custom Separator with Section view *******************/
// UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(15, 40, _expandableTableView.frame.size.width-15, 1)];
// separatorLineView.backgroundColor = [UIColor blackColor];
// [sectionView addSubview:separatorLineView];
See the screen shot
The closest I could solve this problem is to change UITableView's Style from "Grouped" to "Plain".
I wouldn't recommend it if you can find a better solution because now the section headers stick to the top of the screen when scrolling, which is undesirable (I believe the proper way to describe this is "the section headers float").

UITableViewCell hide separator using separatorInset fails in iOS 11

This is the code I used to hide the separator for a single UITableViewCell prior to iOS 11:
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row == 0) {
// Remove separator inset
if ([cell respondsToSelector:#selector(setSeparatorInset:)]) {
[cell setSeparatorInset:UIEdgeInsetsMake(0, tableView.frame.size.width, 0, 0)];
}
// Prevent the cell from inheriting the Table View's margin settings
if ([cell respondsToSelector:#selector(setPreservesSuperviewLayoutMargins:)]) {
[cell setPreservesSuperviewLayoutMargins:NO];
}
// Explictly set your cell's layout margins
if ([cell respondsToSelector:#selector(setLayoutMargins:)]) {
[cell setLayoutMargins:UIEdgeInsetsMake(0, tableView.frame.size.width, 0, 0)];
}
}
}
In this example, the separator is hidden for the first row in every section. I don't want to get rid of the separators completely - only for certain rows.
In iOS 11, the above code does not work. The content of the cell is pushed completely to the right.
Is there a way to accomplish the task of hiding the separator for a single UITableViewCell in iOS 11?
Let me clarify in advance that I do know that I can hide the separator for the entire UITableView with the following code (to hopefully avoid answers instructing me to do this):
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
EDIT: Also to clarify after a comment below, the code does exactly the same thing if I include the setSeparatorInset line at all. So even with only that one line, the content of the cell is pushed all the way to the right.
If you are not keen on adding a custom separator to your UITableViewCell I can show you yet another workaround to consider.
How it works
Because the color of the separator is defined on the UITableView level there is no clear way to change it per UITableViewCell instance. It was not intended by Apple and the only thing you can do is to hack it.
The first thing you need is to get access to the separator view. You can do it with this small extension.
extension UITableViewCell {
var separatorView: UIView? {
return subviews .min { $0.frame.size.height < $1.frame.size.height }
}
}
When you have an access to the separator view, you have to configure your UITableView appropriately. First, set the global color of all separators to .clear (but don't disable them!)
override func viewDidLoad() {
super.viewDidLoad()
tableView.separatorColor = .clear
}
Next, set the separator color for each cell. You can set a different color for each of them, depends on you.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "SeparatorCell", for: indexPath)
cell.separatorView?.backgroundColor = .red
return cell
}
Finally, for every first row in the section, set the separator color to .clear.
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
if indexPath.row == 0 {
cell.separatorView?.backgroundColor = .clear
}
}
Why it works
First, let's consider the structure of the UITableViewCell. If you print out the subviews of your cell you will see the following output.
<UITableViewCellContentView: 0x7ff77e604f50; frame = (0 0; 328 43.6667); opaque = NO; gestureRecognizers = <NSArray: 0x608000058d50>; layer = <CALayer: 0x60400022a660>>
<_UITableViewCellSeparatorView: 0x7ff77e4010c0; frame = (15 43.5; 360 0.5); layer = <CALayer: 0x608000223740>>
<UIButton: 0x7ff77e403b80; frame = (0 0; 22 22); opaque = NO; layer = <CALayer: 0x608000222500>>
As you can see there is a view which holds the content, the separator, and the accessory button. From this perspective, you only need to access the separator view and modify it's background. Unfortunately, it's not so easy.
Let's take a look at the same UITableViewCell in the view debugger. As you can see, there are two separator views. You need to access the bottom one which is not present when the willDisplay: is called. This is where the second hacky part comes to play.
When you will inspect these two elements, you will see that the first (from the top) has a background color set to nil and the second has a background color set to the value you have specified for entire UITableView. In this case, the separator with the color covers the separator without the color.
To solve the issue we have to "reverse" the situation. We can set the color of all separators to .clear which will uncover the one we have an access to. Finally, we can set the background color of the accessible separator to what is desired.
Begin by hiding all separators via tableView.separatorStyle = .none. Then modify your UITableViewCell subclass to something as follows:
class Cell: UITableViewCell {
var separatorLine: UIView?
...
}
Add the following to the method body of tableView(_:cellForRowAt:):
if cell.separatorLine == nil {
// Create the line.
let singleLine = UIView()
singleLine.backgroundColor = UIColor.lightGray.withAlphaComponent(0.5)
singleLine.translatesAutoresizingMaskIntoConstraints = false
// Add the line to the cell's content view.
cell.contentView.addSubview(singleLine)
let singleLineConstraints = [singleLine.leadingAnchor.constraint(equalTo: cell.contentView.leadingAnchor, constant: 8),
singleLine.trailingAnchor.constraint(equalTo: cell.contentView.trailingAnchor),
singleLine.topAnchor.constraint(equalTo: cell.contentView.bottomAnchor, constant: -1),
singleLine.bottomAnchor.constraint(equalTo: cell.contentView.bottomAnchor, constant: 0)]
cell.contentView.addConstraints(singleLineConstraints)
cell.separatorLine = singleLine
}
cell.separatorLine?.isHidden = [Boolean which determines if separator should be displayed]
This code is in Swift, so do as you must for the Objective-C translation and make sure to continue your version checking. In my tests I don't need to use the tableView(_:willDisplayCell:forRowAt:) at all, instead everything is in the cellForRowAtIndexPath: method.
Best way IMO is just to add a simple UIView with 1pt height.
I wrote the following protocol which enables you to use it in any UITableViewCell you like:
// Base protocol requirements
protocol SeperatorTableViewCellProtocol: class {
var seperatorView: UIView! {get set}
var hideSeperator: Bool! { get set }
func configureSeperator()
}
// Specify the separator is of a UITableViewCell type and default separator configuration method
extension SeperatorTableViewCellProtocol where Self: UITableViewCell {
func configureSeperator() {
hideSeperator = true
seperatorView = UIView()
seperatorView.backgroundColor = UIColor(named: .WhiteThree)
contentView.insertSubview(seperatorView, at: 0)
// Just constraint seperatorView to contentView
seperatorView.setConstant(edge: .height, value: 1.0)
seperatorView.layoutToSuperview(.bottom)
seperatorView.layoutToSuperview(axis: .horizontally)
seperatorView.isHidden = hideSeperator
}
}
You use it like this:
// Implement the protocol with custom cell
class CustomTableViewCell: UITableViewCell, SeperatorTableViewCellProtocol {
// MARK: SeperatorTableViewCellProtocol impl'
var seperatorView: UIView!
var hideSeperator: Bool! {
didSet {
guard let seperatorView = seperatorView else {
return
}
seperatorView.isHidden = hideSeperator
}
}
override func awakeFromNib() {
super.awakeFromNib()
configureSeperator()
hideSeperator = false
}
}
And that's all. You are able to customize any UITableViewCell subclass to use a separator.
Set separator visibility from tableView:willDisplayCell:forRowAtIndexPath by:
cell.hideSeperator = false / true
I also followed this pattern once. Over the years I adjusted it. Just today I had to remove the directionalLayoutMargins part to be able to make it work. Now My function looks like this:
func adjustCellSeparatorInsets(at indexPath: IndexPath,
for modelCollection: ModelCollection,
numberOfLastSeparatorsToHide: Int) {
guard modelCollection.isInBounds(indexPath) else { return }
let model = modelCollection[indexPath]
var insets = model.separatorInsets
let lastSection = modelCollection[modelCollection.sectionCount - 1]
let shouldHideSeparator = indexPath.section == modelCollection.sectionCount - 1
&& indexPath.row >= lastSection.count - numberOfLastSeparatorsToHide
// Don't show the separator for the last N rows of the last section
if shouldHideSeparator {
insets = NSDirectionalEdgeInsets(top: 0, leading: 9999, bottom: 0, trailing: 0)
}
// removing separator inset
separatorInset = insets.edgeInsets
// prevent the cell from inheriting the tableView's margin settings
preservesSuperviewLayoutMargins = false
}
See this link if you prefer to inspect it on Github.
The PR of the removal with an explanation can be found here.
Actually when i work with UITableView, i always create custom cell class and for separators and usually make my own separator as UIView with height 1 and left and right constraints, in Your case make those steps:
1. Create custom cell.
2. Add UIView as separator.
3. Link this separator to your custom class.
4. Add hideSeparator method to your class.
-(void)hideSeparator{
self.separator.hidden == YES;
}
5. Hide the separator for any cell you want.
Hope that solves your question.

Removing last separator of cell in table

I have a static TableView set up in my storyboard and i'm trying to remove the separator in the last cell for aesthetic purposes. I've looked at the various answers on this site and other websites and they all point to this type of code for IOS8
self.tableView.tableFooterView = UIView()
However when I run the app the separator is still there. Not too sure what i'm doing wrong.
Swift 5 Version of top voted answer:
tableView.tableFooterView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 1))
It works even if the number of cells is dynamic.
One smart way to remove the separator from last cell is to add a plain view with height of 1 only.
tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 1)];
I'm using the code showing below for iOS 15+ since other solutions stop working.
This solution requires subclassing UITableViewCell, and manual top/bottom cell checks on cell creation time, so it's not that ideal. I would love to know a better solution.
class TableViewCell : UITableViewCell {
var hidesTopSeparator = false
var hidesBottomSeparator = false
override func layoutSubviews() {
super.layoutSubviews()
let topSeparator = subviews.first { $0.frame.minY == 0 && $0.frame.height <= 1 }
let bottomSeparator = subviews.first { $0.frame.minY >= bounds.maxY - 1 && $0.frame.height <= 1 }
topSeparator?.isHidden = hidesTopSeparator
bottomSeparator?.isHidden = hidesBottomSeparator
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let reuseID = "cell"
let cell = tableView.dequeueReusableCell(withIdentifier: reuseID) as? TableViewCell ?? .init(style: .default, reuseIdentifier: reuseID)
let numberOfRows = self.tableView(tableView, numberOfRowsInSection: indexPath.section)
cell.hidesTopSeparator = indexPath.row == 0
cell.hidesBottomSeparator = indexPath.row == numberOfRows - 1
return cell
}
I solved this problem by moving the Separator out of the view, so that I cannot see it
if indexPath.row == settings.count-1{
cell.separatorInset = UIEdgeInsets.init(
top: 0, left: 400,
bottom: 0, right: 0)
}else{
cell.separatorInset = .zero
}
This solution will remove the last separator in each section of grouped tables, without needing to subclass the table or the cells.
Works in iOS 8. (Probably works in iOS 6+).
Add the following to your delegate:
#pragma mark - UITableViewDelegate
- (CGFloat) tableView:(UITableView*)table
heightForFooterInSection:(NSInteger)section {
// Hide the separator when the table is first displayed
// of any sections that are visible on the screen.
[self hideBottomSeparator:table];
return 0.01f; // Or whatever you already return.
}
- (void) scrollViewDidScroll:(UITableView*)table {
// Hide separators that are visible after table scrolls.
// Check that event did not come from other scrollers
// in the table.
if ([table isKindOfClass:UITableView.class]) {
[self hideBottomSeparator:table];
}
}
- (void) hideBottomSeparator:(UITableView*)table {
for (UIView* cell in table.visibleCells) {
[self removeBottomSeparatorFromCell:cell];
}
}
- (void) removeBottomSeparatorFromCell:(UITableViewCell*)cell {
for (UIView* view in cell.subviews) {
if (view.frame.origin.x == 0 &&
view.frame.origin.y > cell.frame.size.height - 2 &&
view.frame.size.width == cell.frame.size.width &&
view.frame.size.height < 2) {
[view removeFromSuperview];
}
}
}
It works by removing any thin UIViews in the visible cells that are full width and at the bottom of the cell (it leaves the top separator visible).
To remove the top separator as well, comment out the origin.y check
If you want to remove the separator from a particular section(s) you would have to get the section numbers from the cells.
Note: because it removes separators by size (and position) alone, it could fail for non-default table (or cell) inset values, or if iOS changes the look of the separator. Also, it could fail if iOS is changed so that the separators are not subviews of the cells, in which case some more rigorous scanning would be required to find the separator views.
It relies on iOS adding the cells to the table before calling heightForFooterInSection:
Also, as above, it will remove all separators from a plain table.
The following solution should work, since all that is required is a simple calculation:
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return self.tableView.frame.height/X+1/X
}
X is the number of cells you want in that table.
Swift 5
the frame has to be 1 pixel above. So set y coord to -1
tableView.tableFooterView = UIView(frame: CGRect(x: 0, y: -1, width: tableView.frame.size.width, height: 1))
iOS 15
Since things changed since iOS 15 here is a simple and clean solution how to control a cell's separators.
The original separators are not accessible in a clean way, therefore I build custom ones that look the same, plus are easy to customize.
class CustomTableViewCell: UITableViewCell {
private let topSeparator = UIView(frame: .zero)
private let botSeparator = UIView(frame: .zero)
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
setupSeparators()
}
private func setupSeparators() {
// Removes original separators
separatorInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: .greatestFiniteMagnitude)
topSeparator.backgroundColor = .lightGray
botSeparator.backgroundColor = .lightGray
contentView.addSubview(topSeparator)
contentView.addSubview(botSeparator)
topSeparator.translatesAutoresizingMaskIntoConstraints = false
botSeparator.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
topSeparator.topAnchor.constraint(equalTo: contentView.topAnchor),
topSeparator.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
topSeparator.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 16),
topSeparator.heightAnchor.constraint(equalToConstant: 0.5),
botSeparator.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
botSeparator.trailingAnchor.constraint(equalTo: topSeparator.trailingAnchor),
botSeparator.leadingAnchor.constraint(equalTo: topSeparator.leadingAnchor),
botSeparator.heightAnchor.constraint(equalTo: topSeparator.heightAnchor)
])
}
func setup(hideTopSeparator: Bool, hideBotSeparator: Bool) {
topSeparator.isHidden = hideTopSeparator
botSeparator.isHidden = hideBotSeparator
}
//...
}
You can then set up the separators and your data through the controller like this:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: CustomTableViewCell.cellIdentifier) as! CustomTableViewCell
cell.setup(hideTopSeparator: indexPath.row == 0,
hideBotSeparator: indexPath.row == datasource.count - 1)
return cell
}
As others pointed out, setting a footer view no longer removes the last separator on iOS 15+. By pushing the separator out of frame, we can achieve the same result. This is my general solution:
if indexPath == tableView.lastCellIndexPath {
// Push the separator line out of frame
cell.separatorInset = UIEdgeInsets(top: 0, left: tableView.bounds.width + 1, bottom: 0, right: 0)
} else {
cell.separatorInset = .zero
}
With UITableView extension:
extension UITableView {
/// Calculates the last cell index path if available
var lastCellIndexPath: IndexPath? {
for section in (0..<self.numberOfSections).reversed() {
let rows = numberOfRows(inSection: section)
guard rows > 0 else { continue }
return IndexPath(row: rows - 1, section: section)
}
return nil
}
}
Caveat
This solution won't work when you're not reloading the entire table view or cells are moved in the last index path. Also, it turns out if you're using Diffable Data Sources and try to reload the previous last items, this reload will happen in the cell provider before the table view data source reports the updated numberOfRows. I could not figure out an easy way around that so far.
Solution for xamarin.iOS:
ActionsTableView.TableFooterView = new UIView() { Frame = new CGRect(0, 0, ActionsTableView.Frame.Size.Width, 1) };

How to add spacing between UITableViewCell

Is there any way to add spacing between UITableViewCell?
I have created a table and each cell only contain an image. The image is assigned to the cell like this:
cell.imageView.image = [myImages objectAtIndex:indexPath.row];
but this make the image enlarged and fit into the whole cell, and there are no spacing between the images.
Or lets say in this way, the height of image are e.g. 50, and I want to add 20 spacing between the images. Is there any way to accomplish this?
My easy solution using Swift :
// Inside UITableViewCell subclass
override func layoutSubviews() {
super.layoutSubviews()
contentView.frame = contentView.frame.inset(by: UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10))
}
Result
Swift Version
Updated for Swift 3
This answer is somewhat more general than the original question for the sake of future viewers. It is a supplemental example to the basic UITableView example for Swift.
Overview
The basic idea is to create a new section (rather than a new row) for each array item. The sections can then be spaced using the section header height.
How to do it
Set up your project as described in UITableView example for Swift. (That is, add a UITableView and hook up the tableView outlet to the View Controller).
In the Interface Builder, change the main view background color to light blue and the UITableView background color to clear.
Replace the ViewController.swift code with the following.
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
// These strings will be the data for the table view cells
let animals: [String] = ["Horse", "Cow", "Camel", "Sheep", "Goat"]
let cellReuseIdentifier = "cell"
let cellSpacingHeight: CGFloat = 5
#IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// These tasks can also be done in IB if you prefer.
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)
tableView.delegate = self
tableView.dataSource = self
}
// MARK: - Table View delegate methods
func numberOfSections(in tableView: UITableView) -> Int {
return self.animals.count
}
// There is just one row in every section
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
// Set the spacing between sections
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return cellSpacingHeight
}
// Make the background color show through
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView()
headerView.backgroundColor = UIColor.clear
return headerView
}
// create a cell for each table view row
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:UITableViewCell = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier) as UITableViewCell!
// note that indexPath.section is used rather than indexPath.row
cell.textLabel?.text = self.animals[indexPath.section]
// add border and color
cell.backgroundColor = UIColor.white
cell.layer.borderColor = UIColor.black.cgColor
cell.layer.borderWidth = 1
cell.layer.cornerRadius = 8
cell.clipsToBounds = true
return cell
}
// method to run when table view cell is tapped
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// note that indexPath.section is used rather than indexPath.row
print("You tapped cell number \(indexPath.section).")
}
}
Note that indexPath.section is used rather than indexPath.row in order to get the proper values for the array elements and tap positions.
How did you get the extra padding/space on the right and left?
I got it the same way you add spacing to any view. I used auto layout constraints. Just use the pin tool in the Interface Builder to add spacing for the leading and trailing constraints.
The way I achieve adding spacing between cells is to make numberOfSections = "Your array count" and make each section contains only one row. And then define headerView and its height.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return yourArry.count;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 1;
}
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return cellSpacingHeight;
}
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *v = [UIView new];
[v setBackgroundColor:[UIColor clearColor]];
return v;
}
I needed to do the same concept of having UITableCells have a "space" between them. Since you can't literally add space between cells you can fake it by manipulating the UITableView's cell height and then adding a UIView to the contentView of your cell. Here is a screen shot of a prototype I did in another test project when I was simulating this:
Here is some code (Note: there are lots of hard coded values for demonstration purposes)
First, I needed to set the heightForRowAtIndexPath to allow for different heights on the UITableViewCell.
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *text = [self.newsArray objectAtIndex:[indexPath row]];
if ([text isEqual:#"December 2012"])
{
return 25.0;
}
return 80.0;
}
Next, I want to manipulate the look and feel of the UITableViewCells so I do that in the willDisplayCell:(NewsUITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath method.
- (void)tableView:(UITableView *)tableView willDisplayCell:(NewsUITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (cell.IsMonth)
{
UIImageView *av = [[UIImageView alloc] initWithFrame:CGRectMake(20, 20, 20, 20)];
av.backgroundColor = [UIColor clearColor];
av.opaque = NO;
av.image = [UIImage imageNamed:#"month-bar-bkgd.png"];
UILabel *monthTextLabel = [[UILabel alloc] init];
CGFloat font = 11.0f;
monthTextLabel.font = [BVFont HelveticaNeue:&font];
cell.backgroundView = av;
cell.textLabel.font = [BVFont HelveticaNeue:&font];
cell.textLabel.textColor = [BVFont WebGrey];
}
if (indexPath.row != 0)
{
cell.contentView.backgroundColor = [UIColor clearColor];
UIView *whiteRoundedCornerView = [[UIView alloc] initWithFrame:CGRectMake(10,10,300,70)];
whiteRoundedCornerView.backgroundColor = [UIColor whiteColor];
whiteRoundedCornerView.layer.masksToBounds = NO;
whiteRoundedCornerView.layer.cornerRadius = 3.0;
whiteRoundedCornerView.layer.shadowOffset = CGSizeMake(-1, 1);
whiteRoundedCornerView.layer.shadowOpacity = 0.5;
[cell.contentView addSubview:whiteRoundedCornerView];
[cell.contentView sendSubviewToBack:whiteRoundedCornerView];
}
}
Note that I made my whiteRoundedCornerView height 70.0 and that's what causes the simulated space because the cell's height is actually 80.0 but my contentView is 70.0 which gives it the appearance.
There might be other ways of accomplishing this even better but it's just how I found how to do it. I hope it can help someone else.
I was in the same boat. At first I tried switching to sections, but in my case it ended up being more of a headache than I originally thought, so I've been looking for an alternative. To keep using rows (and not mess with how you access your model data), here's what worked for me just by using a mask:
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath)
{
let verticalPadding: CGFloat = 8
let maskLayer = CALayer()
maskLayer.cornerRadius = 10 //if you want round edges
maskLayer.backgroundColor = UIColor.black.cgColor
maskLayer.frame = CGRect(x: cell.bounds.origin.x, y: cell.bounds.origin.y, width: cell.bounds.width, height: cell.bounds.height).insetBy(dx: 0, dy: verticalPadding/2)
cell.layer.mask = maskLayer
}
All you have left to do is make the cell's height bigger by the same value as your desired verticalPadding, and then modify your inner layout so that any views that had spacing to the edges of the cell have that same spacing increased by verticalPadding/2. Minor downside: you get verticalPadding/2 padding on both the top and bottom of the tableView, but you can quickly fix this by setting tableView.contentInset.bottom = -verticalPadding/2 and tableView.contentInset.top = -verticalPadding/2. Hope this helps somebody!
You will have to set frame to your image. Untested code is
cell.imageView.frame = CGRectOffset(cell.frame, 10, 10);
I override this function is subclass of UITableViewCell, and it works OK for me
override func layoutSubviews() {
super.layoutSubviews()
//set the values for top,left,bottom,right margins
let margins = UIEdgeInsets(top: 5, left: 8, bottom: 5, right: 8)
contentView.frame = contentView.frame.inset(by: margins)
contentView.layer.cornerRadius = 8
}
I think the most straight forward solution if your just looking for a little space and probably least expensive would be to simply set the cell border color to your tables background color then set the border width to get desired result!
cell.layer.borderColor = blueColor.CGColor
cell.layer.borderWidth = 3
Use sections instead of rows
Each section should return one row
Assign your cell data using indexPath.section, instead of row
Implement UITableView delegate method heightForHeader and return your desired spacing
I solved it like this way in Swift 4.
I create a extension of UITableViewCell and include this code:
override open var frame: CGRect {
get {
return super.frame
}
set (newFrame) {
var frame = newFrame
frame.origin.y += 10
frame.origin.x += 10
frame.size.height -= 15
frame.size.width -= 2 * 10
super.frame = frame
}
}
override open func awakeFromNib() {
super.awakeFromNib()
layer.cornerRadius = 15
layer.masksToBounds = false
}
I hope it helps you.
Change the number of rows in section to 1
You have changed number of sections instead number of rows
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
1
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
Here you put spacing between rows
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50
}
If you are not using section headers (or footers) already, you can use them to add arbitrary spacing to table cells. Instead of having one section with n rows, create a table with n sections with one row each.
Implement the tableView:heightForHeaderInSection: method to control the spacing.
You may also want to implement tableView:viewForHeaderInSection: to control what the spacing looks like.
Example in swift 3..
Crease a single view application
add tableview in view controller
add a customcell for tablview cell
view controller code is bellow like
class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
var arraytable = [[String:Any]]()
override func viewDidLoad() {
super.viewDidLoad()
arraytable = [
["title":"About Us","detail":"RA-InfoTech Ltd -A Joint Venture IT Company formed by Bank Asia Ltd"],
["title":"Contact","detail":"Bengal Center (4th & 6th Floor), 28, Topkhana Road, Dhaka - 1000, Bangladesh"]
]
tableView.delegate = self
tableView.dataSource = self
//For Auto Resize Table View Cell;
tableView.estimatedRowHeight = 44
tableView.rowHeight = UITableViewAutomaticDimension
//Detault Background clear
tableView.backgroundColor = UIColor.clear
}
func numberOfSections(in tableView: UITableView) -> Int {
return arraytable.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
// Set the spacing between sections
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 10
}
// Make the background color show through
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView()
headerView.backgroundColor = UIColor.clear
return headerView
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell")! as! CustomCell
cell.tv_title.text = arraytable[indexPath.section]["title"] as! String?
cell.tv_details.text = arraytable[indexPath.section]["detail"] as! String?
//label height dynamically increase
cell.tv_details.numberOfLines = 0
//For bottom border to tv_title;
let frame = cell.tv_title.frame
let bottomLayer = CALayer()
bottomLayer.frame = CGRect(x: 0, y: frame.height - 1, width: frame.width, height: 1)
bottomLayer.backgroundColor = UIColor.black.cgColor
cell.tv_title.layer.addSublayer(bottomLayer)
//borderColor,borderWidth, cornerRadius
cell.backgroundColor = UIColor.lightGray
cell.layer.borderColor = UIColor.red.cgColor
cell.layer.borderWidth = 1
cell.layer.cornerRadius = 8
cell.clipsToBounds = true
return cell
}
}
Download full source to Github : link
https://github.com/enamul95/CustomSectionTable
Three approaches I can think of:
Create a custom table cell that lays out the view of the entire cell in the manner that you desire
Instead of adding the image to the
image view, clear the subviews of
the image view, create a custom
view that adds an UIImageView for the image and another view, perhaps a simple UIView that provides the desired spacing, and add it as a subview of the
image view.
I want to suggest that you manipulate the UIImageView directly to set a fixed size/padding, but I'm nowhere near Xcode so I can't confirm whether/how this would work.
Does that make sense?
Yes you can increase or decrease the spacing(padding) between two cell by creating one base view on content view in cell.Set clear colour for content view background and you can adjust the height of the base view to create space between cells.
Based on Husam's answer: Using the cell layer instead of content view allows for adding a border around the entire cell and the accessory if need. This method requires careful adjustment of the bottom constraints of the cell as well as those insets otherwise the view will not proper.
#implementation TableViewCell
- (void)awakeFromNib {
...
}
- (void) layoutSubviews {
[super layoutSubviews];
CGRect newFrame = UIEdgeInsetsInsetRect(self.layer.frame, UIEdgeInsetsMake(4, 0, 4, 0));
self.layer.frame = newFrame;
}
#end
Read this after reading other people answers
I'd like to warn everyone who wants to use the solution like adding headers that will serve the purpose of spacing. If you do this, you will not be able to animate cells insertions, deletions, etc.. For example, you may get this kind of error if you use that method
Invalid update: invalid number of sections. The number of sections contained in the table view after the update (6) must be equal to the number of sections contained in the table view before the update (5), plus or minus the number of sections inserted or deleted (0 inserted, 0 deleted).
In case you need to animate insertions and deletions of rows I would go with adding this space in the cells itself. If you are concern about highlighting, then you can override method
func setHighlighted(_ highlighted: Bool, animated: Bool)
and set the highlighting yourself
I think this is the cleanest solution:
class MyTableViewCell: UITableViewCell {
override func awakeFromNib() {
super.awakeFromNib()
layoutMargins = UIEdgeInsetsMake(8, 0, 8, 0)
}
}
This article helped, it's pretty much what the other answers said but summarize and concise
https://medium.com/#andersongusmao/left-and-right-margins-on-uitableviewcell-595f0ba5f5e6
In it, he only applies them to left and right sides but the UIEdgeInsetsMake init allows to add padding to all four points.
func UIEdgeInsetsMake(_ top: CGFloat, _ left: CGFloat, _ bottom: CGFloat, _ right: CGFloat) -> UIEdgeInsets
Description
Creates an edge inset for a button or view.
An inset is a margin around a rectangle. Positive values represent margins closer to the center of the rectangle, while negative values represent margins further from the center.
Parameters
top: The inset at the top of an object.
left: The inset on the left of an object
bottom: The inset on the bottom of an object.
right: The inset on the right of an object.
Returns
An inset for a button or view
Note that UIEdgeInsets can also be used to achieve the same.
Xcode 9.3/Swift 4
Using the headers as spacing would work fine I guess if you don't want to use any headers. Otherwise, probably not the best idea. What I'm thinking is create a custom cell view.
Examples:
Using Nib
In code
In the custom cell, make a background view with constraints so that it doesn't fill the entire cell, give it some padding.
Then, make the tableview background invisible and remove the separators:
// Make the background invisible
tableView.backgroundView = UIView()
tableView.backgroundColor = .clear
// Remove the separators
tableview.separatorStyle = .none
If you don't want to change the section and row number of your table view (like I did), here's what you do:
1) Add an ImageView to the bottom of your table cell view.
2) Make it the same colour as the background colour of the table view.
I've done this in my application and it works perfectly. Cheers! :D
Using a bunch of different sections is not needed. The other answers use frame insets and CGRect and layers and... BLAH. Not good; use auto layout and a custom UITableViewCell. In that UITableViewCell, instead of sub viewing your content inside the contentView, make a new containerView (a UIView), subview the container view inside the contentView, then subview all your views inside the container view.
To make the spacing now, simply edit the layout margins of the container view, like so:
class CustomTableViewCell: UITableViewCell {
let containerView = UIView()
let imageView = UIImageView()
required init?(coder aDecoder: NSCoder) {super.init(coder: aDecoder)}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
containerView.translatesAutoResizingMaskIntoConstraints = false
imageView.translatesAutoResizingMaskIntoConstraints = false
contentView.addSubview(containerView)
containerView.addSubview(imageView)
contentView.layoutMargins = UIEdgeInsets(top: 15, left: 3, bottom: 15, right: 3)
containerView.layoutMargins = UIEdgeInsets(top: 15, left: 17, bottom: 15, right: 17) // It isn't really necessary unless you've got an extremely complex table view cell. Otherwise, you could just write e.g. containerView.topAnchor
let cg = contentView.layoutMarginsGuide
let lg = containerView.layoutMarginsGuide
NSLayoutConstraint.activate([
containerView.topAnchor.constraint(equalTo: cg.topAnchor),
containerView.leadingAnchor.constraint(equalTo: cg.leadingAnchor),
containerView.trailingAnchor.constraint(equalTo: cg.trailingAnchor),
containerView.bottomAnchor.constraint(equalTo: cg.bottomAnchor),
imageView.topAnchor.constraint(equalTo: lg.topAnchor),
imageView.leadingAnchor.constraint(equalTo: lg.leadingAnchor),
imageView.trailingAnchor.constraint(equalTo: lg.trailingAnchor),
imageView.bottomAnchor.constraint(equalTo: lg.bottomAnchor)
])
}
}
Try looking into
- (UIEdgeInsets)layoutMargins;
on the cell
My situation was i used custom UIView to viewForHeader in section also heightForHeader in section return constant height say 40, issue was when there is no data all header views were touched to each other. so i wanted to space between the section in absent of data so i fixed by just changing "tableview style" plane to "Group".and it worked for me.
Check out my solution on GitHub with subclassing of UITableView and using runtime features of Objective-C.
It basically uses Apple's private data structure UITableViewRowData that I got searching private runtime header of UITableView:
https://github.com/JaviSoto/iOS10-Runtime-Headers/blob/master/Frameworks/UIKit.framework/UITableView.h,
and here's desired private class that contains everything you need to layout your cells' spacings however you want without setting it in cells' classes:
https://github.com/JaviSoto/iOS10-Runtime-Headers/blob/master/Frameworks/UIKit.framework/UITableViewRowData.h
I was having trouble getting this to work alongside background colours and accessory views in the cell. Ended up having to:
1) Set the cells background view property with a UIView set with a background colour.
let view = UIView()
view.backgroundColor = UIColor.white
self.backgroundView = view
2) Re-position this view in layoutSubviews to add the idea of spacing
override func layoutSubviews() {
super.layoutSubviews()
backgroundView?.frame = backgroundView?.frame.inset(by: UIEdgeInsets(top: 2, left: 0, bottom: 0, right: 0)) ?? CGRect.zero
}
You can simply use constraint in code like this :
class viewCell : UITableViewCell
{
#IBOutlet weak var container: UIView!
func setShape() {
self.container.backgroundColor = .blue
self.container.layer.cornerRadius = 20
container.translatesAutoresizingMaskIntoConstraints = false
self.container.widthAnchor.constraint(equalTo:contentView.widthAnchor , constant: -40).isActive = true
self.container.heightAnchor.constraint(equalTo: contentView.heightAnchor,constant: -20).isActive = true
self.container.centerXAnchor.constraint(equalTo: contentView.centerXAnchor).isActive = true
self.container.centerYAnchor.constraint(equalTo: contentView.centerYAnchor).isActive = true
}
}
it's important to add subview (container) and put other elements in it.
Just adding to the pool of answers with what worked for me.
I’ve added a view (purple view) within the TableViewCell that I use as my cell’s content view. And constrain the purple view to have padding on top and bottom, or however you’d like, but I think this way creates a little more flexibility.
TableViewCell ->
override open var frame: CGRect {
get {
return super.frame
}
set {
var frame = newValue
frame.size.height -= 2
super.frame = frame
}
}
add a inner view to the cell then add your own views to it.

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