My tableview code is -
import UIKit
class ViewController: UIViewController {
var categories = ["Action", "Drama", "Science Fiction", "Kids", "Horror"]
}
extension ViewController : UITableViewDelegate { }
extension ViewController : UITableViewDataSource {
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return categories[section]
}
func numberOfSections(in tableView: UITableView) -> Int {
return categories.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as! CategoryRow
return cell
}
}
The result on the simulator is -
Now, I want the to customize the font/text of the various sections i.e. Action, Drama, Science Fiction, Kids, Horror other than black, may be make it bigger etc. How is it possible ?
With tableView(_:titleForHeaderInSection:) method, you can't modify the UI properties of the header text.
You need to implement tableView(_:viewForHeaderInSection:) and tableView(_:heightForHeaderInSection:) methods to get a custom UI for the header, i.e.
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let label = UILabel()
label.text = categories[section]
label.font = UIFont.systemFont(ofSize: 20.0, weight: .bold)
label.textColor = .red
label.sizeToFit()
return label
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50.0
}
Simply return a UILabel instance with required text attributes in tableView(_:viewForHeaderInSection:)
There is below function available in UITableViewDelegate
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
<#code#>
}
You would have the full control over the header of each section and customisation can be done accordingly.
In the method
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return categories[section]
the table view uses a fixed font style for section header titles. If you want a different font style, return a custom view (for example, a UILabel object) in the delegate method tableView(_:viewForHeaderInSection:) instead.
You can use delegate method of UITableView tableView(_:viewForHeaderInSection:) to get custom UI for the header
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView(frame: CGRect(x: 0, y: 0, width: yourTable.bounds.width, height: 40))
let headerLabel = UILabel(frame: CGRect(x: 15, y: 0, width: yourTable.bounds.width, height: 40))
headerLabel.font = UIFont.boldSystemFont(ofSize: 20)
headerLabel.textColor = .blue
headerLabel.text = self.tableView(self.yourtableView, titleForHeaderInSection: section)
headerLabel.sizeToFit()
headerView.addSubview(headerLabel)
return headerView
}
And height for section
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 30 //whatever you want
}
I am using below code for one fixed cell at the top and then list of items in below in a single tableview, I am able to load the data from firestore database, but the first item in from the database is not shown, it is kind of hidden behind the fixed "detailscell", rest the fixed cell and all other items from the database shows up, how to fix that?
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// print(posts)
return posts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row == 0 && details1.count > 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "detailsCell") as! DetailsCellInHomeScreen
cell.set(details: details1[indexPath.row])
return cell
} else if posts.count > (indexPath.row - 1) {
let cell = tableView.dequeueReusableCell(withIdentifier: "postCell", for: indexPath) as! PostTableViewCell
cell.set(post: posts[indexPath.row - 1])
return cell
} else {
return UITableViewCell()
}
}
TableView has a function like below:
// MARK: - Headers and Footers
extension MyTableViewController {
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
return MyCustomView()
}
}
You can use this function to return any view you want as a section header. Also note that sectionHeader views are sticky in default style tableView (not grouped style!). So you can use this as a advantage.
There are many tutorials like this one on the internet to follow and learn how to build a custom section section header for UITableView
You should add header on the table view:
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// print(posts)
return posts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "postCell", for: indexPath) as! PostTableViewCell
cell.set(post: posts[indexPath.row - 1])
return cell
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView.init(frame: CGRect.init(x: 0, y: 0, width: tableView.frame.width, height: 50))
let label = UILabel()
label.frame = CGRect.init(x: 5, y: 5, width: headerView.frame.width-10, height: headerView.frame.height-10)
label.text = "A Label on detailsCell"
headerView.addSubview(label)
return headerView
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50
}
if the tableView has several section you can realize the section with section: Int object
tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? uses for create the header view and tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat uses for set header height
How to make nested table (multiple level sections) in swift 4 like the below picture:
A UITableView is designed to show just two levels (sections and rows), but I want to display more than two levels.
Basic Section and Row.
var titleString = [0 : "Bat and Ball", 1 : "Hockey"]
var rowString = [0: ["Baseball", "Softball", "Cricket"], 1: ["Field Hockey", "Ice Hockey", "Roller Hockey"]]
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (rowString[section]?.count)!
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! SOTableViewCell
cell.testLbl.text = rowString[indexPath.section]?[indexPath.row]
cell.selectionStyle = .none
return cell
}
// Uncomment for Default design and comment viewForHeaderInSection method
//func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//return titleString[section]
//}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 25))
sectionView.backgroundColor = UIColor.magenta
let sectionName = UILabel(frame: CGRect(x: 5, y: 0, width: tableView.frame.size.width, height: 25))
sectionName.text = titleString[section]
sectionName.textColor = UIColor.white
sectionName.font = UIFont.systemFont(ofSize: 14)
sectionName.textAlignment = .left
sectionView.addSubview(sectionName)
return sectionView
}
I tried to make a Footer in UITableView like in iOS app "Contacts".
I have simple tableView with simple array:
items = ["aa", "bb", "cc", "dd"]
I want to make empty space under last cell.
I tried to add this cellForRowAt:
if indexPath.row == self.converterItems.count-1 {
cell.separatorInset = UIEdgeInsetsMake(0, cell.bounds.size.width, 0, 0)}
But it delete separator only for one cell.
override func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
var header :UITableViewHeaderFooterView = UITableViewHeaderFooterView()
header.contentView.backgroundColor = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1)
return header
}
This method looks good, but it lost separator below last cell...
You should create a UIView and assign it to your table's footer view
myTableView.tableFooterView = createTableFooterView()
func createTableFooterView() -> UIView {
let footerView = UIView()
...
...
...
return footerView
}
To make the table endless. You'd better set UITableViewStyle.grouped
let tableView = UITableView(frame: CGRect.zero, style: .grouped)
And Then:
extension ViewController: UITableViewDelegate, UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return [].count// your array
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "", for: indexPath)
// your cell
// yourIdentifier, and you should register cell Identifier for tableView at first
return cell
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return CGFloat.leastNormalMagnitude
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return ""
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 50
}
func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
return "83 KOH"
}
}
I have a array of headers that I use
let sectionHeaderTitleArray = ["test1","test2","test3]
and they are showed using
func tableView[tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sectionHeaderTitleArray[section] as String
}
Now all of this works fine but I would like to modify the background color of the headers so that they are more visible (Darker Color)
any idea if I can do this in a simple line or do I need to use a custom cell to create this
thanks
update
//number of sections and names for the table
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.sectionHeaderTitleArray.count
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sectionHeaderTitleArray[section] as String
}
func tableView(tableView: UITableView, ViewForHeaderInSection section: Int) -> UIView? {
return self.tableView.backgroundColor = UIColor.lightGrayColor()
}
If you're using only titleForHeaderInSection :
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
(view as! UITableViewHeaderFooterView).contentView.backgroundColor = UIColor.black.withAlphaComponent(0.4)
(view as! UITableViewHeaderFooterView).textLabel?.textColor = UIColor.white
}
Instead of using the
func tableView(_ tableView: UITableView,titleForHeaderInSection section: Int) -> String?
data source method, you can use the
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
delegate method and simply customize the UIView returned as you wish.
For example set the text of the UILabel textLabel to your desired value and the backgroundColor to the desired UIColor.
func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let returnedView = UIView(frame: CGRectMake(x, y, width, height)) //set these values as necessary
returnedView.backgroundColor = UIColor.lightGrayColor()
let label = UILabel(frame: CGRectMake(labelX, labelY, labelWidth, labelHeight))
label.text = self.sectionHeaderTitleArray[section]
returnedView.addSubview(label)
return returnedView
}
SWIFT 5
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let returnedView = UIView(frame: CGRect(x: x, y: y, width: width, height: height)) //set these values as necessary
returnedView.backgroundColor = .white
let label = UILabel(frame: CGRect(x: x, y: y, width: width, height: height))
label.text = self.sectionHeaderTitleArray[section]
returnedView.addSubview(label)
return returnedView
}
You have to keep both
titleForHeaderInSection
AND
viewForHeaderInSection
Here is some working code in Swift 3
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sectionHeaderTitleArray[section]
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let returnedView = UIView(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 25))
returnedView.backgroundColor = .lightGray
let label = UILabel(frame: CGRect(x: 10, y: 7, width: view.frame.size.width, height: 25))
label.text = self.sectionHeaderTitleArray[section]
label.textColor = .black
returnedView.addSubview(label)
return returnedView
}
SWIFT 5
public func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "headerId") as! CustomHeader
let background = UIView(frame: view.bounds, background: .clear)
header.backgroundView = background
return header
}
SWIFT 4
Super easy, by setting header's view, contentView background color..
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "headerId") as! CustomHeader
header.contentView.backgroundColor = AnyColor
return header
}
Swift 5 iOS 13:
//Remove 'override' if you don't override from UITableviewController
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
guard let headerView = view as? UITableViewHeaderFooterView else { return }
headerView.tintColor = .clear //use any color you want here .red, .black etc
}
Swift 4.X
This is tested and working code.
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return UITableViewAutomaticDimension
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return "Total Count (41)"
}
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
view.tintColor = UIColor.lightGray
let header = view as! UITableViewHeaderFooterView
header.textLabel?.textColor = UIColor.darkGray
header.textLabel?.font = UIFont.systemFont(ofSize: 14, weight: .medium)
}
Swift 3+
I used this:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 20))
headerView.backgroundColor = .lightGray
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.text = stringValues[section]
headerView.addSubview(label)
label.leftAnchor.constraint(equalTo: headerView.leftAnchor).isActive = true
label.rightAnchor.constraint(equalTo: headerView.rightAnchor).isActive = true
label.centerYAnchor.constraint(equalTo: headerView.centerYAnchor).isActive = true
label.heightAnchor.constraint(equalToConstant: 25).isActive = true
return headerView
}
Swift 5
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
guard let headerView = view as? UITableViewHeaderFooterView else { return }
headerView.backgroundView?.backgroundColor = .red
}
And, if you want different header background (and/or text) colors for each section:
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
guard let headerView = view as? UITableViewHeaderFooterView else { return }
switch section {
case 0:
headerView.backgroundView?.backgroundColor = .red
headerView.textLabel?.textColor = .white
case 1:
headerView.backgroundView?.backgroundColor = .green
headerView.textLabel?.textColor = .white
case 2:
headerView.backgroundView?.backgroundColor = .yellow
headerView.textLabel?.textColor = .black
// etc
default:
return
}
Swift5
Versión updated to iOS 11,12,13,14 with example
change background color and text color:
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
guard let tableView = view as? UITableViewHeaderFooterView else { return }
tableView.textLabel?.textColor = UIColor.white
tableView.contentView.backgroundColor = UIColor.black
}
Full example of viewcontroller:
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var tableView: UITableView!
private let array: [String] = ["ab","bc","cd","de","ef","fg","gh","hi","ij","jk"]
let sectionHeaderTitleArray = ["test1","test2", "test3"]
override func viewDidLoad() {
super.viewDidLoad()
if #available(iOS 11, *) {}
else {
self.edgesForExtendedLayout = []
}
configTableview()
}
private func configTableview() {
tableView.registerCell(type: SyncCell.self)
tableView.separatorColor = #colorLiteral(red: 0, green: 0.3066673801, blue: 1, alpha: 0.19)
tableView.delegate = self
tableView.dataSource = self
}
}
extension ViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
guard let tableView = view as? UITableViewHeaderFooterView else { return }
tableView.textLabel?.textColor = UIColor.white
tableView.contentView.backgroundColor = UIColor.black
}
func tableView(_ tableView: UITableView,titleForHeaderInSection section: Int) -> String? {
return sectionHeaderTitleArray[section]
}
func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return array.count
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 130
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("selected cell: \(indexPath)")
}
}
extension ViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let item = array[indexPath.row]
let cell = tableView.dequeueReusableCell(type: SyncCell.self, forIndexPath: indexPath)
cell.configCell(text: item)
cell.selectionStyle = .none
return cell
}
}
If you are using titleForHeaderInSection, then the easiest way is to add in viewDidLoad():
self.tableView.backgroundColor = UIColor.clear
For some reason, setting ClearColor for Background in the View section for the TableView in the Interface Builder doesnt always set it to transparent. But adding this one line in the code (for me at least) does.
override viewForHeaderInSection and create UITableViewHeaderFooterView
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
var headrview = tableView.dequeueReusableHeaderFooterView(withIdentifier: "aaa")
if headrview == nil {
headrview = UITableViewHeaderFooterView(reuseIdentifier: "aaa")
}
let bview = UIView()
bview.backgroundColor = Theme.current.navigationColor
headrview?.backgroundView = bview
headrview?.textLabel?.textColor = Theme.current.primaryTextColor
return headrview
}
Swift 4 solution.
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView:UIView = UIView()
headerView.backgroundColor = UIColor.lightGray
return headerView
}
If you have a custom header view, you can do it with contentView.backgroundColor.
There is no need to use hacks such as willDisplayHeaderView method or others.
Simply create your own class of UITableViewHeaderFooterView.
Then in func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? return your created custom header view. You should change background color not directly for your header view but for contentView of your header view 🙂
let headerView = tableView.dequeueReusableHeaderFooterView(withIdentifier: NotificationSettingsHeaderView.reuseIdentifier) as! NotificationSettingsHeaderView
headerView.label.text = dataSource.snapshot().sectionIdentifiers[section].title
headerView.contentView.backgroundColor = .red
return headerView
What's even better is to setup background color in init of your header view subclass
This will change it for all the headers in your application :
UITableViewHeaderFooterView.appearance().backgroundColor = theme.subViewBackgroundColor
override or implement the function tableview will display
public func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
let headerView = (view as? UITableViewHeaderFooterView)
headerView?.tintColor = .clear
}
We can change the footer color in a section of tableView using the below code snippet.
call the Method heightForFooterInSection
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 5.0
}
call the method viewForFooterInSection
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let viw = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.width, height: 5))
viw.backgroundColor = .white
return viw
}
Hope this will help you. This is a tested Code.