How to make transparent the header title of tableview en swift ios - ios

I'm actually using a table view for display some datas and I'm overriding willDisplayHeaderView to add a Custom style for the header. All is working fine except that I can not change the background color of the title header. Here is my code:
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int)
{
view.backgroundColor = UIColor.clear
let title = UILabel()
title.font = UIFont(name: "System", size: 22)
title.textColor = UIColor(rgba: "#BA0B23")
title.backgroundColor = UIColor.clear
let header = view as! UITableViewHeaderFooterView
header.textLabel?.font=title.font
header.backgroundColor = UIColor.clear
header.textLabel?.textColor=title.textColor
header.textLabel?.textAlignment = NSTextAlignment.center
let sepFrame = CGRect(x: 0, y: header.frame.size.height-1, width: header.frame.size.width, height: 1)
let seperatorView = UIView(frame: sepFrame)
seperatorView.backgroundColor = UIColor(rgba: "#BA0B23")
header.addSubview(seperatorView)
}
I don't know what I'm doing wrong, some help would be appreciated. Thank you


In story board you can take a table view cell, give its custom tableViewCell class and then customise your cell according to design and then in your view controller you can return that cell like this
public func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?{
let cell:CustomHeaderTableViewCell = self.tableView.dequeueReusableCell(withIdentifier: "header") as! CustomHeaderTableViewCell
let title = uniqueOrders.arrOrders[section] as? String
cell.lblHeaderTitle.text = "Order Id-\(title!)"
return cell
}
func numberOfSections(in tableView: UITableView) -> Int{
return uniqueOrders.arrOrders.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return self.array[section].count
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return "Order Id- \(uniqueOrders.arrOrders[section])"
}


I think you should focus on using viewForHeaderInSection, rather than willDisplayHeaderView.
Here's what I'd do:
func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 110;
}
func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
headerView.backgroundColor = UIColor.clearColor()
let title = UILabel()
title.font = UIFont(name: "System", size: 22)
title.textColor = UIColor(rgba: "#BA0B23")
title.backgroundColor = UIColor.clear
headerView.textLabel?.font = title.font
headerView.backgroundColor = UIColor.clear
headerView.textLabel?.textColor = title.textColor
headerView.textLabel?.textAlignment = NSTextAlignment.center
headerView.addsubView(title)
return headerView;
}
hope that helps

Related

Add a Section Separator Between UITableView

The first one(left) is my design and the second one(right) is what I have achieved still now. One difference is that for the second image I don't have the separator line like the first one. In viewForFooterInSection i have already tried many existing solutions to show separator lines but didn't get the exact solution. I need the separator line at the end of the last row of the first and second sections with some space.
Here is my code -
func numberOfSections(in tableView: UITableView) -> Int {
return secName.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items[section].count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "APHomeTableViewCell", for: indexPath) as! APHomeTableViewCell
cell.selectionStyle = .none
cell.cellTitle.text = items[indexPath.section][indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.secName[section]
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
self.tableView.backgroundColor = UIColor.white
let headerFrame = tableView.frame
let title = UILabel()
title.frame = CGRect(x: 40, y: 0, width: headerFrame.size.width-20, height: 40)
title.font = UIFont.SFBoldFont(ofSize: 14)//UIFont(name: "Futura", size: 30)!
title.text = self.tableView(tableView, titleForHeaderInSection: section)
title.textColor = UIColor(white: 0.19, alpha: 1.0)//UIColor(red: 34/255.0, green: 141/255.0, blue: 183/255.0, alpha: 1.0)
let headerView:UIView = UIView(frame: CGRect(x: 0, y: 0, width: headerFrame.size.width, height: headerFrame.size.height))
headerView.addSubview(title)
return headerView
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 45
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
let section = indexPath.section
return 70
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 50
}

you can do a little change
turn
to

viewForHeaderInSection not displaying label in table view

I am looking to change the background colour and text colour of the uitableview sections using viewForHeaderInSection like so:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionHeader = UIView()
let sectionText = UILabel()
sectionHeader.backgroundColor = .blue
sectionText.textColor = .red
sectionText.font = .systemFont(ofSize: 14, weight: .bold)
sectionText.text = painkillersArray[section]["label"] as? String
sectionHeader.addSubview(sectionText)
return sectionHeader
}
The background is working but the text is not appearing. What am I doing wrong?

you need to give frame to both the view and label and also you have to provide heightForHeaderInSection:-
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionHeader = UIView.init(frame: CGRect.init(x: 0, y: 0, width: tableView.frame.width, height: 50))
let sectionText = UILabel()
sectionText.frame = CGRect.init(x: 5, y: 5, width: sectionHeader.frame.width-10, height: sectionHeader.frame.height-10)
sectionText.text = "Custom Text"
sectionText.font = .systemFont(ofSize: 14, weight: .bold) // my custom font
sectionText.textColor = .red // my custom colour
sectionHeader.addSubview(sectionText)
return sectionHeader
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 60 // my custom height
}

===
EDIT: I removed the first code I wrote, which didn't handle autolayout correctly. Morevoer, as #rmaddy pointed out in the comment below, it would be better if you use the provided UITableViewHeaderFooterView as is.
Register
tableView.register(UITableViewHeaderFooterView.self, forHeaderFooterViewReuseIdentifier: "header")
in viewDidLoad and do
override func tableView(_ tableView: UITableView,
viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "header")
header?.textLabel?.text = "foo"
return header
}
header?.textLabel?.textColor = .red won't work in the above method, so put customization code in
override func tableView(_ tableView: UITableView,
viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "header")
header?.textLabel?.text = "foo"
return header
}
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
if let header = view as? UITableViewHeaderFooterView {
header.textLabel?.textColor = .red
header.backgroundView?.backgroundColor = .blue
}
}
===
To use autolayout constraints with more complex headers, provide a custom UITableViewHeaderFooterView subclass:
class CustomTableViewHeaderView: UITableViewHeaderFooterView {
func commonInit() {
let sectionHeader = UIView()
let sectionText = UILabel()
sectionHeader.backgroundColor = .blue
sectionText.textColor = .red
sectionText.font = .systemFont(ofSize: 14, weight: .bold)
sectionText.text = "foo"
sectionHeader.translatesAutoresizingMaskIntoConstraints = false
sectionText.translatesAutoresizingMaskIntoConstraints = false
sectionHeader.addSubview(sectionText)
addSubview(sectionHeader)
NSLayoutConstraint.activate([
sectionHeader.leadingAnchor.constraint(equalTo: leadingAnchor),
sectionHeader.trailingAnchor.constraint(equalTo: trailingAnchor),
sectionHeader.topAnchor.constraint(equalTo: topAnchor),
sectionHeader.bottomAnchor.constraint(equalTo: bottomAnchor),
sectionText.leadingAnchor.constraint(equalTo: sectionHeader.leadingAnchor, constant: 16),
sectionText.trailingAnchor.constraint(equalTo: sectionHeader.trailingAnchor),
sectionText.topAnchor.constraint(equalTo: sectionHeader.topAnchor, constant: 8),
sectionText.bottomAnchor.constraint(equalTo: sectionHeader.bottomAnchor, constant: -8),
])
}
override init(reuseIdentifier: String?) {
super.init(reuseIdentifier: reuseIdentifier)
commonInit()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
commonInit()
}
}
and register it in viewDidLoad():
func viewDidLoad() {
super.viewDidLoad()
...
tableView.register(CustomTableViewHeaderView.self, forHeaderFooterViewReuseIdentifier: "header")
...
}
Then simply dequeReusableHeaderFooterView:
func tableView(_ tableView: UITableView,
viewForHeaderInSection section: Int) -> UIView? {
return tableView.dequeueReusableHeaderFooterView(withIdentifier: "header")
}
Implement heightForHeaderInSection and estimatedHeightForHeaderInSection similarly.

Unable to add uiview with label in viewForHeaderInSection()

I'm a beginner trying to learn Swift
I'm trying to make my own section header by creating a uiview and adding a label to it before returning it. However the label is never displayed, only the uiview.
I cannot see what I'm doing wrong?
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 40
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let sectionHeaderView = UIView()
sectionHeaderView.backgroundColor = UIColor.lightGray
sectionHeaderView.layer.cornerRadius = 0
let sectionLabel = UILabel()
sectionLabel.text = "Test"
sectionLabel.textColor = UIColor.black
sectionLabel.font = UIFont.boldSystemFont(ofSize: 16)
sectionHeaderView.addSubview(sectionLabel)
return sectionHeaderView
}

I forgot to add sectionLabel.sizeToFit()
Thanks maddy!

How to make multiple level sections in UITableView in Swift 4

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
}

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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