As I am creating a TableView programmatically with multiple cell and in each cell having UICollectionView, UITableView, UITableView.... but I am not able to find the error and every time when I run the program it Shows
" Command failed due to signal: Segmentation fault: 11".
Has any one created this type of UI using coding.
New in Swift so forgive for errors.
// ViewController.swift
// Json Parsing in Swift
//
import UIKit
import Alamofire
import SwiftyJSON
class ViewController: UITableViewController {
var dataArray = Array<JSON>()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
Alamofire.request(.GET, "http://104.131.162.14:3033/api/ios/detail").validate().responseJSON { response in
switch response.result {
case .Success:
if let value = response.result.value {
let json = JSON(value)
print("JSON: \(json)")
var trafficJson = json["traffic_partners"]
trafficJson["type"] = "Traffic"
self.dataArray.append(trafficJson)
var newsJson = json["news"]
newsJson["type"] = "News"
self.dataArray.append(newsJson)
var categoryJson = json["category"]
categoryJson["type"] = "Category"
self.dataArray.append(categoryJson)
var topFreeApps = json["top_free_apps"]
topFreeApps["type"] = "TopApps"
self.dataArray.append(topFreeApps)
var topSites = json["top_sites"]
topSites["type"] = "TopSites"
self.dataArray.append(topSites)
var trendingVideos = json["tranding_video"]
trendingVideos["type"] = "TrendingVideos"
self.dataArray.append(trendingVideos)
var sports = json["sports"]
sports["type"] = "Sports"
self.dataArray.append(sports)
var jokes = json["jokes"]
jokes["type"] = "jokes"
self.dataArray.append(jokes)
print(self.dataArray[0]["detail"][0].object)
print(self.dataArray[2]["detail"].object)
self.tableView.reloadData()
}
case .Failure(let error):
print(error)
}
}
tableView.registerClass(MyCell.self, forCellReuseIdentifier: "cellId")
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataArray.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let myCell = tableView.dequeueReusableCellWithIdentifier("cellId", forIndexPath: indexPath) as! MyCell
myCell.nameLabel.text = dataArray[indexPath.row]["type"].string
if (dataArray[indexPath.row]["type"].string == "News") {
myCell.newsArray = dataArray[indexPath.row]["detail"].arrayObject
}
myCell.myTableViewController = self
return myCell
}
}
class MyCell: UITableViewCell {
var newsArray :NSMutableArray=[]
var myTableViewController: ViewController?
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
setupViews()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
let newsTableView: UITableView = {
let newsTV = UITableView(frame:UIScreen.mainScreen().bounds, style: UITableViewStyle.Plain)
newsTV.registerClass(NewsTableViewCell.self, forCellReuseIdentifier: "NewsTableViewCell")
return newsTV
}()
func tableView(newsTableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return newsArray.count
}
func tableView(newsTableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let myCell = newsTableView.dequeueReusableCellWithIdentifier("cellId", forIndexPath: indexPath) as! NewsTableViewCell
myCell.nameLabel.text = newsArray[indexPath.row]["title"].string
myCell.myTableViewController = myTableViewController
return myCell
}
let nameLabel: UILabel = {
let label = UILabel()
label.text = "Sample Item"
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.boldSystemFontOfSize(14)
return label
}()
func setupViews() {
addSubview(newsTableView)
addSubview(nameLabel)
addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": nameLabel]))
addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": newsTableView]))
}
func handleAction() {
}
}
Related
I am trying to create a table of services such that, if service has a couple of sub-services, then the cell associated with that service then has another table view showing those sub-services under the said service.
I tried implementing such a table by looking at the example shown in the link: table within a tableviewcell
I am posting related source codes associated with the tableview
BookingServiceChargeViewCell.swift
import UIKit
import PineKit
import SwiftMoment
class BookingServiceChargeViewCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource {
var service : Service? = nil
var subServices : [Service] = []
let content = PineCardView()
var cover = UIImageView()
let serviceName = PineLabel.Bold(text: " ... ")
var itemIndex = -1
var chosen = false
var parentView : OnboardingChosenServicesViewController? = nil
var anchor = UIView()
let table = UITableView()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.selectionStyle = .none
layout()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func layout() {
self.addSubview(content)
content.snp.makeConstraints { (make) in
make.top.left.right.equalTo(self).inset(5)
make.bottom.equalTo(self)
}
layoutContent()
}
func layoutContent() {
content.addSubviews([cover, serviceName])
self.cover.image = UIImage(named: "gray-card")
cover.clipsToBounds = true
cover.snp.makeConstraints { (make) in
make.width.equalTo(content).multipliedBy(0.15)
make.left.equalTo(content).offset(10)
make.top.equalTo(content.snp.top).offset(15)
make.size.equalTo(50)
}
serviceName.textColor = UIColor.black
serviceName.font = Config.Font.get(.Bold, size: 17.5)
serviceName.snp.makeConstraints { (make) in
make.centerY.equalTo(cover)
make.left.equalTo(cover.snp.right).offset(20)
}
table.delegate = self
table.dataSource = self
table.register(BookingSubServicesChargeViewCell.self, forCellReuseIdentifier: "cell")
table.separatorStyle = .none
self.content.addSubview(table)
table.snp.makeConstraints { (make) in
make.top.equalTo(self.cover.snp.bottom).offset(15)
make.left.equalTo(self.cover.snp.right).offset(10)
make.right.equalTo(self.content.snp.right).offset(-10)
make.height.equalTo(450)
}
}
func configure(_ service: Service, subServices: [Service], index: Int, parentView: OnboardingChosenServicesViewController) {
self.service = service
self.subServices = subServices
self.itemIndex = index
self.parentView = parentView
if (self.service!.defaultImage != nil){
ImageLoader.sharedLoader.imageForUrl(urlString: self.service!.defaultImage!) { (image, url) in
self.cover.image = image
}
}
self.serviceName.text = self.service!.name!
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.subServices.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! BookingSubServicesChargeViewCell
cell.configure(self.subServices[indexPath.row], index: indexPath.row, parentView: self.parentView!)
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 80
}
}
BookingSubServicesChargeViewCell.swift
import UIKit
import PineKit
import SwiftMoment
class BookingSubServicesChargeViewCell: UITableViewCell {
var service : Service? = nil
let content = PineCardView()
var cover = UIImageView()
let serviceName = PineLabel.Bold(text: " ... ")
var itemIndex = -1
var chosen = false
var parentView : OnboardingChosenServicesViewController? = nil
var anchor = UIView()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.selectionStyle = .none
layout()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func layout() {
self.addSubview(content)
content.snp.makeConstraints { (make) in
make.top.left.right.equalTo(self).inset(5)
make.bottom.equalTo(self)
}
layoutContent()
}
func layoutContent() {
content.addSubviews([cover, serviceName])
self.cover.image = UIImage(named: "gray-card")
cover.clipsToBounds = true
cover.snp.makeConstraints { (make) in
make.width.equalTo(content).multipliedBy(0.15)
make.left.equalTo(content).offset(10)
make.top.equalTo(content.snp.top).offset(15)
make.size.equalTo(50)
}
serviceName.textColor = UIColor.black
serviceName.font = Config.Font.get(.Bold, size: 17.5)
serviceName.snp.makeConstraints { (make) in
make.centerY.equalTo(cover)
make.left.equalTo(cover.snp.right).offset(20)
}
self.anchor = self.serviceName
}
func configure(_ service: Service, index: Int, parentView: OnboardingChosenServicesViewController) {
self.service = service
self.itemIndex = index
self.parentView = parentView
if (self.service!.defaultImage != nil){
ImageLoader.sharedLoader.imageForUrl(urlString: self.service!.defaultImage!) { (image, url) in
self.cover.image = image
}
}
self.serviceName.text = self.service!.name!
}
}
Here a couple of screenshots of the situation that has arisen:-
As you can see in the screenshots, some of the tables which have sub-services are not being shown, but sometimes they are being shown.
Can someone tell me what is it that I am missing here? What changes am I supposed to make in the source codes shown above?
FYI: I am not using storyboards in any way and I do not know what nib files are. I have constructed this programmatically and I am hoping that I can get a code snippet based solution as soon as possible.
Thanks.
In BookingServiceChargeViewCell class, call self.table.reloadData() at the end of configure method as below.
func configure(_ service: Service, subServices: [Service], index: Int, parentView: OnboardingChosenServicesViewController) {
self.service = service
self.subServices = subServices
self.itemIndex = index
self.parentView = parentView
if (self.service!.defaultImage != nil){
ImageLoader.sharedLoader.imageForUrl(urlString: self.service!.defaultImage!) { (image, url) in
self.cover.image = image
}
}
self.serviceName.text = self.service!.name!
self.table.reloadData()
}
I'm designing a UITableView using subviews to populate the reusable cell of it, and I wish some opinion about that.
As I had tested, it works well. But, I don't know if it is a good solution.
The scenario is: I have a tableview with different kind of cells (layouts). When I was designing, it grows fast (my controller code), as I had to register a lot of cell and handle cellForRow. Then I come with that idea, to instantiate different subviews for one unique reusable cell and use a 'Presenter' to handle delegate/datasource. You think is that a problem? And is that a good approach?
Thanks in advance!
Ps.: sorry for any english error!
EDITED:
Here is the session in project followed by de codes:
Codes at:
OrderDetailCell
class OrderDetailCell: UITableViewCell {
//MARK: Outlets
#IBOutlet weak var cellHeight: NSLayoutConstraint!
#IBOutlet weak var viewContent: UIView!
//Variables
var didUpdateLayout = false
internal func setupLayoutWith(view: UIView){
cellHeight.constant = view.frame.height
viewContent.frame = view.frame
viewContent.addSubview(view)
updateConstraints()
layoutIfNeeded()
didUpdateLayout = true
}
}
OrderDetailSubview
class OrderDetailSubview: UIView {
var type: OrderDetailsSubViewType?
var height: CGFloat = 1
class func instanceFromNib(withType type: OrderDetailsSubViewType) -> OrderDetailSubview {
let view = UINib(nibName: type.rawValue, bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! OrderDetailSubview
switch type {
case .OrderDetailSubviewStatus:
view.height = 258
case .OrderDetailSubViewItem:
view.height = 129
case .OrderDetailSubViewStoreInformation:
view.height = 317
case .OrderDetailSubViewEvaluation:
view.height = 150
}
view.updateConstraints()
view.layoutIfNeeded()
return view
}
}
OrderDetailPresenter
enum OrderDetailsSubViewType: String {
case OrderDetailSubviewStatus = "OrderDetailSubviewStatus",
OrderDetailSubViewItem = "OrderDetailSubViewItem",
OrderDetailSubViewStoreInformation = "OrderDetailSubViewStoreInformation",
OrderDetailSubViewEvaluation = "OrderDetailSubViewEvaluation"
static let types = [OrderDetailSubviewStatus, OrderDetailSubViewItem, OrderDetailSubViewStoreInformation, OrderDetailSubViewEvaluation]
}
class OrderDetailPresenter {
//Constants
let numberOfSections = 4
//Variables
// var order: Order?
func setup(reusableCell: UITableViewCell, forRowInSection section: Int) -> OrderDetailCell {
let cell = reusableCell as! OrderDetailCell
for sub in cell.viewContent.subviews {
sub.removeFromSuperview()
}
let subView = OrderDetailSubview.instanceFromNib(withType: OrderDetailsSubViewType.types[section])
cell.setupLayoutWith(view: subView)
return cell
}
func numberOfRowsForSection(_ section: Int) -> Int {
switch section {
case 1:
//TODO: count de offerList
return 4
default:
return 1
}
}
}
OrderDetailViewController
class OrderDetailViewController: BaseViewController {
//MARK: Outlets
#IBOutlet weak var tableView: UITableView!
var presenter = OrderDetailPresenter()
override func setupView() {
setupTableView()
}
}
extension OrderDetailViewController: UITableViewDataSource, UITableViewDelegate {
internal func setupTableView() {
tableView.delegate = self
tableView.dataSource = self
tableView.estimatedRowHeight = 600
tableView.rowHeight = UITableViewAutomaticDimension
tableView.register(UINib(nibName: "OrderDetailCell", bundle: nil), forCellReuseIdentifier: "OrderDetailCell")
}
func numberOfSections(in tableView: UITableView) -> Int {
return presenter.numberOfSections
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return presenter.numberOfRowsForSection(section)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let reusableCell = tableView.dequeueReusableCell(withIdentifier: "OrderDetailCell") as! OrderDetailCell
let cell = presenter.setup(reusableCell: reusableCell, forRowInSection: indexPath.section)
return cell
}
}
*Sorry for indentation here...
Thats it! What you think?
Here you want to have multiple UITableViewCell subclasses that implement the different layouts that you want, and then select the relevant one in you table view data source.
class Cell1: UITableViewCell {
let label = UILabel()
override init(style: UITableViewCellStyle, reuseIdentifier: String) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.contentView.addSubview(label)
}
... whatever other setup/layout you need to do in the class ...
}
class Cell2: UITableViewCell {
let imageView = UIImageView()
override init(style: UITableViewCellStyle, reuseIdentifier: String) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.contentView.addSubview(imageView)
}
... whatever other setup/layout you need to do in the class ...
}
Then in your view controller
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(Cell1.self, forCellReuseIdentifier: "cell1Identifier")
tableView.register(Cell2.self, forCellReuseIdentifier: "cell2Identifier")
}
...
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row % 2 == 0 { // just alternating rows for example
let cell = tableView.dequeueReusableCell(withIdentifier: "cell1Identifier", for: indexPath) as! Cell1
// set data on cell
return cell
} else {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell2Identifier", for: indexPath) as! Cell2
// set data on cell
return cell
}
}
So this is just an example, but is using two different cell subclasses for alternating rows in the table view.
let dynamicCellID: String = "dynamicCellID" //One Cell ID for resuse
class dynamicCell: UITableViewCell {
var sub: UIView // you just need to specify the subview
init(sub: UIView) {
self.sub = sub
super.init(style: .default, reuseIdentifier: dynamicCellID)
self.addSubview(sub)
self.sub.frame = CGRect(x: 0, y: 0, width: sub.frame.width, height: sub.frame.height)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
And you need to create a views array the give that view to every cell in delegate
let views: [UIView] = []
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return views.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let v = views[indexPath.row]
return dynamicCell(sub: v)
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
let v = views[indexPath.row]
return v.frame.height + 10 //offset is 10 point
}
Surprised this isn't working out of the box, as this seems to be an important use case for stack views. I have a UITableViewCell subclass which adds a UIStackView to the contentView. I'm adding labels to the stack view in tableView(_cellForRowAtIndexPath:) and the tableview is set to use dynamic row heights, but it doesn't appear to work, at least in Xcode 7.3. I was also under the impression that hiding arranged subviews in a stack view was animatable, but that seems broken as well.
Any ideas on how to get this working correctly?
class StackCell : UITableViewCell {
enum VisualFormat: String {
case HorizontalStackViewFormat = "H:|[stackView]|"
case VerticalStackViewFormat = "V:|[stackView(>=44)]|"
}
var hasSetupConstraints = false
lazy var stackView : UIStackView! = {
let stack = UIStackView()
stack.axis = .Vertical
stack.distribution = .FillProportionally
stack.alignment = .Fill
stack.spacing = 3.0
stack.translatesAutoresizingMaskIntoConstraints = false
return stack
}()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
contentView.addSubview(stackView)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func updateConstraints() {
if !hasSetupConstraints {
hasSetupConstraints = true
let viewsDictionary: [String:AnyObject] = ["stackView" : stackView]
var newConstraints = [NSLayoutConstraint]()
newConstraints += self.newConstraints(VisualFormat.HorizontalStackViewFormat.rawValue, viewsDictionary: viewsDictionary)
newConstraints += self.newConstraints(VisualFormat.VerticalStackViewFormat.rawValue, viewsDictionary: viewsDictionary)
addConstraints(newConstraints)
}
super.updateConstraints()
}
private func newConstraints(visualFormat: String, viewsDictionary: [String:AnyObject]) -> [NSLayoutConstraint] {
return NSLayoutConstraint.constraintsWithVisualFormat(visualFormat, options: [], metrics: nil, views: viewsDictionary)
}
class ViewController: UITableViewController {
private let reuseIdentifier = "StackCell"
private let cellClass = StackCell.self
override func viewDidLoad() {
super.viewDidLoad()
configureTableView(self.tableView)
}
private func configureTableView(tableView: UITableView) {
tableView.registerClass(cellClass, forCellReuseIdentifier: reuseIdentifier)
tableView.separatorStyle = .SingleLine
tableView.estimatedRowHeight = 88
tableView.rowHeight = UITableViewAutomaticDimension
}
private func newLabel(title: String) -> UILabel {
let label = UILabel()
label.text = title
return label
}
// MARK: - UITableView
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 4
}
override func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 44.0
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(reuseIdentifier, forIndexPath: indexPath) as! StackCell
cell.stackView.arrangedSubviews.forEach({$0.removeFromSuperview()})
cell.stackView.addArrangedSubview(newLabel("\(indexPath.section)-\(indexPath.row)"))
cell.stackView.addArrangedSubview(newLabel("Second Label"))
cell.stackView.addArrangedSubview(newLabel("Third Label"))
cell.stackView.addArrangedSubview(newLabel("Fourth Label"))
cell.stackView.addArrangedSubview(newLabel("Fifth Label"))
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let cell = tableView.cellForRowAtIndexPath(indexPath) as! StackCell
for (idx, view) in cell.stackView.arrangedSubviews.enumerate() {
if idx == 0 {
continue
}
view.hidden = !view.hidden
}
UIView.animateWithDuration(0.3, animations: {
cell.contentView.layoutIfNeeded()
tableView.beginUpdates()
tableView.endUpdates()
})
}
}
It seems that for this to work the constraints need to be added in the init of the UITableViewCell and added to the contentView instead of cell's view.
The working code looks like this:
import UIKit
class StackCell : UITableViewCell {
enum VisualFormat: String {
case HorizontalStackViewFormat = "H:|[stackView]|"
case VerticalStackViewFormat = "V:|[stackView(>=44)]|"
}
var hasSetupConstraints = false
lazy var stackView : UIStackView! = {
let stack = UIStackView()
stack.axis = UILayoutConstraintAxis.Vertical
stack.distribution = .FillProportionally
stack.alignment = .Fill
stack.spacing = 3.0
stack.translatesAutoresizingMaskIntoConstraints = false
stack.setContentCompressionResistancePriority(UILayoutPriorityRequired, forAxis: .Vertical)
return stack
}()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
contentView.addSubview(stackView)
addStackConstraints()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private func addStackConstraints() {
let viewsDictionary: [String:AnyObject] = ["stackView" : stackView]
var newConstraints = [NSLayoutConstraint]()
newConstraints += self.newConstraints(VisualFormat.HorizontalStackViewFormat.rawValue, viewsDictionary: viewsDictionary)
newConstraints += self.newConstraints(VisualFormat.VerticalStackViewFormat.rawValue, viewsDictionary: viewsDictionary)
contentView.addConstraints(newConstraints)
super.updateConstraints()
}
private func newConstraints(visualFormat: String, viewsDictionary: [String:AnyObject]) -> [NSLayoutConstraint] {
return NSLayoutConstraint.constraintsWithVisualFormat(visualFormat, options: [], metrics: nil, views: viewsDictionary)
}
}
I am making a custom UIViewController that I want to show a message when a UITableViewCell is tapped. I create a UITableView and set the property
tableView.allowsSelectionDuringEditing = true
Even though that property has been set to true, tableView(:didSelectRowAtIndexPath) is not being called to display the message. Why is this and how do I fix it?
Here is my UITableViewController:
class GameListViewController: UIViewController, UITableViewDataSource, GameListViewDelegate, UITableViewDelegate
{
private var _games: [GameObject] = []
var tableView: UITableView {return (view as GameListView).tableView}
var gameListView: GameListView {return (view as GameListView) }
override func loadView()
{
view = GameListView(frame: UIScreen.mainScreen().bounds)
gameListView.delegate = self
}
override func viewDidLoad()
{
super.viewDidLoad()
tableView.dataSource = self
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return _games.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var index: Int = indexPath.row
let currentGame = _games[index]
var cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: nil)
cell.textLabel?.lineBreakMode = NSLineBreakMode.ByCharWrapping
cell.textLabel?.numberOfLines = 2
if currentGame.isFinished == true
{
cell.imageView?.image = UIImage(named: "Finished.png")
cell.textLabel?.text = "Winner: Player\(currentGame.playerMakingMove)\nMissiles Launched: \(currentGame.missileCount)"
}
else
{
cell.imageView?.image = UIImage(named: "Resume.png")
cell.textLabel?.text = "Turn: Player\(currentGame.playerMakingMove)\nMissiles Launched: \(currentGame.missileCount)"
}
return cell
}
/*Handles deleting the cells*/
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath)
{
if (editingStyle == UITableViewCellEditingStyle.Delete)
{
var index: Int = indexPath.row
_games.removeAtIndex(index)
tableView.deleteRowsAtIndexPaths(NSArray(array: [indexPath]), withRowAnimation: UITableViewRowAnimation.Left)
}
tableView.reloadData()
}
/* Performs when a cell is touched */
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
{
var index: Int = indexPath.row
tableView.selectRowAtIndexPath(indexPath, animated: true, scrollPosition: UITableViewScrollPosition.None)
println("inside tableView: didSelectRowAtIndexPath")
var message = UIAlertView(title: "Row selected", message: "You have selected a row", delegate: nil, cancelButtonTitle: "Click ME!", otherButtonTitles: "no other buttons")
message.show()
}
func makeNewGame()
{
addGames(1)
tableView.reloadData()
}
func addGames(gameNumber: Int)
{
var p1 = Player()
var p2 = Player()
for var i = 0; i < gameNumber; i++
{
var randBool = Bool( round(drand48())) // True/False
var randPlayer:Int = Int( round( (drand48() + 1)) ) // 1 or 2
var randMissleCount:Int = Int( arc4random_uniform(5000) + 1 ) //1 - 5001
_games.append(GameObject(isFinished: randBool, playerMakingMove: randPlayer, missileCount: randMissleCount, player1: p1, player2: p2))
}
}
}
Here is my UIView that contains the UITableView:
protocol GameListViewDelegate: class
{
func makeNewGame()
}
class GameListView: UIView, PictureButtonDelegate
{
var newGameButton: PictureButton!
var tableView: UITableView!
weak var delegate: GameListViewDelegate? = nil
override init(frame: CGRect)
{
super.init(frame: frame)
newGameButton = PictureButton(frame: CGRect(), fileName: "NewGame.png")
newGameButton.backgroundColor = UIColor.grayColor()
newGameButton.delegate = self
newGameButton.setTranslatesAutoresizingMaskIntoConstraints(false)
tableView = UITableView()
tableView.allowsSelectionDuringEditing = true
tableView.setTranslatesAutoresizingMaskIntoConstraints(false)
self.addSubview(newGameButton)
self.addSubview(tableView)
}
override func layoutSubviews()
{
let views: [String : UIView] = ["button": newGameButton, "tableView": tableView]
addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[button]-|", options: .allZeros, metrics: nil, views: views))
addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[tableView]-|", options: .allZeros, metrics: nil, views: views))
addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-(>=15,<=25)-[button]-[tableView]-|", options: .allZeros, metrics: nil, views: views))
}
func buttonPushed()
{
delegate?.makeNewGame()
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
You have to set a delegate for the UITableView and implement func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath).
You only set the dataSource, but never the delegate (only a GameListViewDelegate for GameListView).
Change your viewDidLoad function in GameListViewController to:
override func viewDidLoad()
{
super.viewDidLoad()
tableView.dataSource = self
tableView.delegate = self
}
Hey all I am trying to create a custom UITableViewCell, but I see nothing on the simulator. Can you help me please.
I can see the label only if I var labUserName = UILabel(frame: CGRectMake(0.0, 0.0, 130, 30));
but it overlaps the cell. I don't understand, Auto Layout should know the preferred size/minimum size of each cell?
Thanks
import Foundation
import UIKit
class TableCellMessages: UITableViewCell {
var imgUser = UIImageView();
var labUserName = UILabel();
var labMessage = UILabel();
var labTime = UILabel();
override init(style: UITableViewCellStyle, reuseIdentifier: String) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
imgUser.layer.cornerRadius = imgUser.frame.size.width / 2;
imgUser.clipsToBounds = true;
contentView.addSubview(imgUser)
contentView.addSubview(labUserName)
contentView.addSubview(labMessage)
contentView.addSubview(labTime)
//Set layout
var viewsDict = Dictionary <String, UIView>()
viewsDict["image"] = imgUser;
viewsDict["username"] = labUserName;
viewsDict["message"] = labMessage;
viewsDict["time"] = labTime;
//Image
//contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[image(100)]-'", options: nil, metrics: nil, views: viewsDict));
//contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-[image(100)]-|", options: nil, metrics: nil, views: viewsDict));
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-[username]-[message]-|", options: nil, metrics: nil, views: viewsDict));
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[username]-|", options: nil, metrics: nil, views: viewsDict));
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[message]-|", options: nil, metrics: nil, views: viewsDict));
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
Let's make a few assumptions:
You have an iOS8 project with a Storyboard that contains a single UITableViewController. Its tableView has a unique prototype UITableViewCell with custom style and identifier: "cell".
The UITableViewController will be linked to Class TableViewController, the cell will be linked to Class CustomTableViewCell.
You will then be able to set the following code (updated for Swift 2):
CustomTableViewCell.swift:
import UIKit
class CustomTableViewCell: UITableViewCell {
let imgUser = UIImageView()
let labUserName = UILabel()
let labMessage = UILabel()
let labTime = UILabel()
override func awakeFromNib() {
super.awakeFromNib()
imgUser.backgroundColor = UIColor.blueColor()
imgUser.translatesAutoresizingMaskIntoConstraints = false
labUserName.translatesAutoresizingMaskIntoConstraints = false
labMessage.translatesAutoresizingMaskIntoConstraints = false
labTime.translatesAutoresizingMaskIntoConstraints = false
contentView.addSubview(imgUser)
contentView.addSubview(labUserName)
contentView.addSubview(labMessage)
contentView.addSubview(labTime)
let viewsDict = [
"image": imgUser,
"username": labUserName,
"message": labMessage,
"labTime": labTime,
]
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-[image(10)]", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:[labTime]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-[username]-[message]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[username]-[image(10)]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-[message]-[labTime]-|", options: [], metrics: nil, views: viewsDict))
}
}
TableViewController.swift:
import UIKit
class TableViewController: UITableViewController {
override func viewDidLoad() {
super.viewDidLoad()
//Auto-set the UITableViewCells height (requires iOS8+)
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 44
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 100
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! CustomTableViewCell
cell.labUserName.text = "Name"
cell.labMessage.text = "Message \(indexPath.row)"
cell.labTime.text = NSDateFormatter.localizedStringFromDate(NSDate(), dateStyle: .ShortStyle, timeStyle: .ShortStyle)
return cell
}
}
You will expect a display like this (iPhone landscape):
This is the update for swift 3 of the answer Imanou Petit.
CustomTableViewCell.swift:
import Foundation
import UIKit
class CustomTableViewCell: UITableViewCell {
let imgUser = UIImageView()
let labUerName = UILabel()
let labMessage = UILabel()
let labTime = UILabel()
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
imgUser.backgroundColor = UIColor.blue
imgUser.translatesAutoresizingMaskIntoConstraints = false
labUerName.translatesAutoresizingMaskIntoConstraints = false
labMessage.translatesAutoresizingMaskIntoConstraints = false
labTime.translatesAutoresizingMaskIntoConstraints = false
contentView.addSubview(imgUser)
contentView.addSubview(labUerName)
contentView.addSubview(labMessage)
contentView.addSubview(labTime)
let viewsDict = [
"image" : imgUser,
"username" : labUerName,
"message" : labMessage,
"labTime" : labTime,
] as [String : Any]
contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-[image(10)]", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:[labTime]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-[username]-[message]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-[username]-[image(10)]-|", options: [], metrics: nil, views: viewsDict))
contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-[message]-[labTime]-|", options: [], metrics: nil, views: viewsDict))
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
Settigns.swift:
import Foundation
import UIKit
class Settings: UIViewController, UITableViewDelegate, UITableViewDataSource {
private var myTableView: UITableView!
private let sections: NSArray = ["fruit", "vegitable"] //Profile network audio Codecs
private let fruit: NSArray = ["apple", "orange", "banana", "strawberry", "lemon"]
private let vegitable: NSArray = ["carrots", "avocado", "potato", "onion"]
override func viewDidLoad() {
super.viewDidLoad()
// get width and height of View
let barHeight: CGFloat = UIApplication.shared.statusBarFrame.size.height
let navigationBarHeight: CGFloat = self.navigationController!.navigationBar.frame.size.height
let displayWidth: CGFloat = self.view.frame.width
let displayHeight: CGFloat = self.view.frame.height
myTableView = UITableView(frame: CGRect(x: 0, y: barHeight+navigationBarHeight, width: displayWidth, height: displayHeight - (barHeight+navigationBarHeight)))
myTableView.register(CustomTableViewCell.self, forCellReuseIdentifier: "cell") // register cell name
myTableView.dataSource = self
myTableView.delegate = self
//Auto-set the UITableViewCells height (requires iOS8+)
myTableView.rowHeight = UITableViewAutomaticDimension
myTableView.estimatedRowHeight = 44
self.view.addSubview(myTableView)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// return the number of sections
func numberOfSections(in tableView: UITableView) -> Int{
return sections.count
}
// return the title of sections
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return sections[section] as? String
}
// called when the cell is selected.
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Num: \(indexPath.row)")
if indexPath.section == 0 {
print("Value: \(fruit[indexPath.row])")
} else if indexPath.section == 1 {
print("Value: \(vegitable[indexPath.row])")
}
}
// return the number of cells each section.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return fruit.count
} else if section == 1 {
return vegitable.count
} else {
return 0
}
}
// return cells
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomTableViewCell
if indexPath.section == 0 {
cell.labUerName.text = "\(fruit[indexPath.row])"
cell.labMessage.text = "Message \(indexPath.row)"
cell.labTime.text = DateFormatter.localizedString(from: NSDate() as Date, dateStyle: .short, timeStyle: .short)
} else if indexPath.section == 1 {
cell.labUerName.text = "\(vegitable[indexPath.row])"
cell.labMessage.text = "Message \(indexPath.row)"
cell.labTime.text = DateFormatter.localizedString(from: NSDate() as Date, dateStyle: .short, timeStyle: .short)
}
return cell
}
}
In Swift 5.
The custom UITableViewCell:
import UIKit
class CourseCell: UITableViewCell {
let courseName = UILabel()
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
// Set any attributes of your UI components here.
courseName.translatesAutoresizingMaskIntoConstraints = false
courseName.font = UIFont.systemFont(ofSize: 20)
// Add the UI components
contentView.addSubview(courseName)
NSLayoutConstraint.activate([
courseName.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 20),
courseName.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -20),
courseName.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -20),
courseName.heightAnchor.constraint(equalToConstant: 50)
])
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
The UITableViewController:
import UIKit
class CourseTableViewController: UITableViewController {
private var data: [Int] = [1]
override func viewDidLoad() {
super.viewDidLoad()
// You must register the cell with a reuse identifier
tableView.register(CourseCell.self, forCellReuseIdentifier: "courseCell")
// Change the row height if you want
tableView.rowHeight = 150
// This will remove any empty cells that are below your data filled cells
tableView.tableFooterView = UIView()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return data.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "courseCell", for: indexPath) as! CourseCell
cell.courseName.text = "Course name"
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
}
}