Change font of a Table Header Section - ios

Can anyone help me with the code missing in viewForHeaderInSection?
Do I have to create a UILabel?
What exactly should be done to change the font of the Table Header Section?
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 55.0;//Choose your custom row height
}
func numberOfSections(in tableView: UITableView) -> Int {
return self.hoursArray.count
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView {
//Code missing!
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.hoursArray[section]
}


Remove this function and it should work with default label.
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView {
}
For custom header, You can return any view here is an example of a UIlabel.
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView {
let label = UILabel.init(frame: CGRect.init(x: 0, y: 0, width: tableView.frame.size.width, height: 30))
label.textColor = UIColor.red
label.text = self.hoursArray[section]
return label
}


Do not implement both viewForHeaderInSection and titleForHeaderInSection. If you want a custom view for the header, just implement the viewForHeaderInSection method. And you also need to implement the heightForHeaderInSection otherwise the header won't appear.
Typically you create, setup, and return an instance of UITableViewHeaderFooterView but you can also simply create a UILabel setup as desired.


func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView
{
let label = UILabel(frame: CGRect.init(x: 0, y: 0, width: tableView.frame.size.width, height: 30)
label.text = "I'am a test label"
label.font = UIFont(name: "Arial", size: label.font.pointSize)
return label
}

Related

swift change section array element text or font color in tableview header

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
}

Separators in table views(Swift)

How can I add these separators or blank spaces between the tableview cells?
Or you just use two different cells?

you can add section footer view
Code:
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let footerView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 50))
return footerView
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 50
}

How can I access to the FooterView of a UITableViewController with .grouped style

I'm trying to do a simple task, add a text to the footerViews for every section in my grouped Table View. I'm working for first time without Storyboards and maybe I'm missing something 😩
I should mention that doing the same with a .plain style is working.
So I'm creating my UITableViewController subclass instance:
let settingsController = SettingsController(style: .grouped)
Then I'm implementing all the possible methods in reference to footerView:
override func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
return UIView(frame: CGRect(x: 0, y: 0, width: tableView.bounds.size.width, height: 50))
}
override func tableView(_ tableView: UITableView, willDisplayFooterView view: UIView, forSection section: Int) {
let header = view as! UITableViewHeaderFooterView
header.textLabel?.font = UIFont(name: "Futura", size: 11)
header.textLabel?.textColor = UIColor.lightGray
header.textLabel?.text = "TEST"
}
override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 40
}
Why is entering in these methods when is setting up with .plain style but not with .grouped, any idea? Thanks 👍

How to set a custom cell as header or footer of UITableView

I am using Xib files instead of storyboard. I have created a table view with some dummy data. Its working fine, Now I have created a custom cell with some labels and textFields. How can I use it as header or footer of UITableView ?

The answer is actually pretty simple.
In viewForHeaderInSection() create cell object as you do in cellForRowAtIndexPath() and return it.
Here is sample code.
override func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let cell = tableView.dequeueReusableCellWithIdentifier("cellIdentifier") as! YourTableViewCell
return cell
}
You can set height for header as:
override func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 80
}
Update for Swift 4.2
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellIdentifier") as! YourTableViewCell
return cell
}
and
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 80
}

You can create a custom view programmatically. I tried the following code. Try it once.
override func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let customview:UIView = UIView();
let label = UILabel();
label.text = "ur custom data"
/*
You can add any number of subviews you want here
And don't forget to add it to your customview.
*/
customview.addSubview(label)
return customview;
}
similarly you can do the same thing for header also.

This is the Method add the Header of TableView:
In that you can any controls Like UIButton,UIImageView,....etc.
func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionView = UIView()
sectionView.frame = CGRectMake(x,y,height,width) // For Set the Frame
sectionView.backgroundColor = UIColor.redColor()
return sectionView
}
func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let sectionView = UIView()
sectionView.frame = CGRectMake(x,y,height,width) // For Set the Frame
sectionView.backgroundColor = UIColor.redColor()
return sectionView
}
Like Above you can set the Footer of Section and
You can add the size of the header And footer
func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 20.0
}
func tableView(tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 20.0
}
Swift 4.0
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionView = UIView()
sectionView.frame = CGRect(x: x, y: y, width: width, height: height)// For Set the Frame
sectionView.backgroundColor = UIColor.red
return sectionView
}
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let sectionView = UIView()
sectionView.frame = CGRect(x: x, y: y, width: width, height: height)// For Set the Frame
sectionView.backgroundColor = UIColor.red
return sectionView
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 20.0
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 20.0
}

Change the sections header background color in UITableView using an array of headers

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.

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