I have been trying to implement a feature in my app so that when a user taps a cell in my table view, the cell expands downwards to reveal notes. I have found plenty of examples of this in Objective-C but I am yet to find any for Swift.
This example seems perfect: Accordion table cell - How to dynamically expand/contract uitableviewcell?
I had an attempt at translating it to Swift:
var selectedRowIndex = NSIndexPath()
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedRowIndex = indexPath
tableView.beginUpdates()
tableView.endUpdates()
}
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
if selectedRowIndex == selectedRowIndex.row && indexPath.row == selectedRowIndex.row {
return 100
}
return 70
}
However this just seems to crash the app.
Any ideas?
Edit:
Here is my cellForRowAtIndexPath code:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:CustomTransactionTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as CustomTransactionTableViewCell
cell.selectionStyle = UITableViewCellSelectionStyle.None
if tableView == self.searchDisplayController?.searchResultsTableView {
cell.paymentNameLabel.text = (searchResults.objectAtIndex(indexPath.row)) as? String
//println(searchResults.objectAtIndex(indexPath.row))
var indexValue = names.indexOfObject(searchResults.objectAtIndex(indexPath.row))
cell.costLabel.text = (values.objectAtIndex(indexValue)) as? String
cell.dateLabel.text = (dates.objectAtIndex(indexValue)) as? String
if images.objectAtIndex(indexValue) as NSObject == 0 {
cell.paymentArrowImage.hidden = false
cell.creditArrowImage.hidden = true
} else if images.objectAtIndex(indexValue) as NSObject == 1 {
cell.creditArrowImage.hidden = false
cell.paymentArrowImage.hidden = true
}
} else {
cell.paymentNameLabel.text = (names.objectAtIndex(indexPath.row)) as? String
cell.costLabel.text = (values.objectAtIndex(indexPath.row)) as? String
cell.dateLabel.text = (dates.objectAtIndex(indexPath.row)) as? String
if images.objectAtIndex(indexPath.row) as NSObject == 0 {
cell.paymentArrowImage.hidden = false
cell.creditArrowImage.hidden = true
} else if images.objectAtIndex(indexPath.row) as NSObject == 1 {
cell.creditArrowImage.hidden = false
cell.paymentArrowImage.hidden = true
}
}
return cell
}
Here are the outlet settings:
It took me quite a lot of hours to get this to work. Below is how I solved it.
PS: the problem with #rdelmar's code is that he assumes you only have one section in your table, so he's only comparing the indexPath.row. If you have more than one section (or if you want to already account for expanding the code later) you should compare the whole index, like so:
1) You need a variable to tell which row is selected. I see you already did that, but you'll need to return the variable to a consistent "nothing selected" state (for when the user closes all cells). I believe the best way to do this is via an optional:
var selectedIndexPath: NSIndexPath? = nil
2) You need to identify when the user selects a cell. didSelectRowAtIndexPath is the obvious choice. You need to account for three possible outcomes:
the user is tapping on a cell and another cell is expanded
the user is tapping on a cell and no cell is expanded
the user is tapping on a cell that is already expanded
For each case we check if the selectedIndexPath is equal to nil (no cell expanded), equal to the indexPath of the tapped row (same cell already expanded) or different from the indexPath (another cell is expanded). We adjust the selectedIndexPath accordingly. This variable will be used to check the right rowHeight for each row. You mentioned in comments that didSelectRowAtIndexPath "didn't seem to be called". Are you using a println() and checking the console to see if it was called? I included one in the code below.
PS: this doesn't work using tableView.rowHeight because, apparently, rowHeight is checked only once by Swift before updating ALL rows in the tableView.
Last but not least, I use reloadRowsAtIndexPath to reload only the needed rows. But, also, because I know it will redraw the table, relayout when necessary and even animate the changes. Note the [indexPath] is between brackets because this method asks for an Array of NSIndexPath:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("didSelectRowAtIndexPath was called")
var cell = tableView.cellForRowAtIndexPath(indexPath) as! MyCustomTableViewCell
switch selectedIndexPath {
case nil:
selectedIndexPath = indexPath
default:
if selectedIndexPath! == indexPath {
selectedIndexPath = nil
} else {
selectedIndexPath = indexPath
}
}
tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
3) Third and final step, Swift needs to know when to pass each value to the cell height. We do a similar check here, with if/else. I know you can made the code much shorter, but I'm typing everything out so other people can understand it easily, too:
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
let smallHeight: CGFloat = 70.0
let expandedHeight: CGFloat = 100.0
let ip = indexPath
if selectedIndexPath != nil {
if ip == selectedIndexPath! {
return expandedHeight
} else {
return smallHeight
}
} else {
return smallHeight
}
}
Now, some notes on your code which might be the cause of your problems, if the above doesn't solve it:
var cell:CustomTransactionTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as CustomTransactionTableViewCell
I don't know if that's the problem, but self shouldn't be necessary, since you're probably putting this code in your (Custom)TableViewController. Also, instead of specifying your variable type, you can trust Swift's inference if you correctly force-cast the cell from the dequeue. That force casting is the as! in the code below:
var cell = tableView.dequeueReusableCellWithIdentifier("CellIdentifier" forIndexPath: indexPath) as! CustomTransactionTableViewCell
However, you ABSOLUTELY need to set that identifier. Go to your storyboard, select the tableView that has the cell you need, for the subclass of TableViewCell you need (probably CustomTransactionTableViewCell, in your case). Now select the cell in the TableView (check that you selected the right element. It's best to open the document outline via Editor > Show Document Outline). With the cell selected, go to the Attributes Inspector on the right and type in the Identifier name.
You can also try commenting out the cell.selectionStyle = UITableViewCellSelectionStyle.None to check if that's blocking the selection in any way (this way the cells will change color when tapped if they become selected).
Good Luck, mate.
The first comparison in your if statement can never be true because you're comparing an indexPath to an integer. You should also initialize the selectedRowIndex variable with a row value that can't be in the table, like -1, so nothing will be expanded when the table first loads.
var selectedRowIndex: NSIndexPath = NSIndexPath(forRow: -1, inSection: 0)
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
if indexPath.row == selectedRowIndex.row {
return 100
}
return 70
}
Swift 4.2 var selectedRowIndex: NSIndexPath = NSIndexPath(row: -1, section: 0)
I suggest solving this with modyfing height layout constraint
class ExpandableCell: UITableViewCell {
#IBOutlet weak var img: UIImageView!
#IBOutlet weak var imgHeightConstraint: NSLayoutConstraint!
var isExpanded:Bool = false
{
didSet
{
if !isExpanded {
self.imgHeightConstraint.constant = 0.0
} else {
self.imgHeightConstraint.constant = 128.0
}
}
}
}
Then, inside ViewController:
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.delegate = self
self.tableView.dataSource = self
self.tableView.estimatedRowHeight = 2.0
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.tableFooterView = UIView()
}
// TableView DataSource methods
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 3
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:ExpandableCell = tableView.dequeueReusableCell(withIdentifier: "ExpandableCell") as! ExpandableCell
cell.img.image = UIImage(named: indexPath.row.description)
cell.isExpanded = false
return cell
}
// TableView Delegate methods
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
guard let cell = tableView.cellForRow(at: indexPath) as? ExpandableCell
else { return }
UIView.animate(withDuration: 0.3, animations: {
tableView.beginUpdates()
cell.isExpanded = !cell.isExpanded
tableView.scrollToRow(at: indexPath, at: UITableViewScrollPosition.top, animated: true)
tableView.endUpdates()
})
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
guard let cell = tableView.cellForRow(at: indexPath) as? ExpandableCell
else { return }
UIView.animate(withDuration: 0.3, animations: {
tableView.beginUpdates()
cell.isExpanded = false
tableView.endUpdates()
})
}
}
Full tutorial available here
A different approach would be to push a new view controller within the navigation stack and use the transition for the expanding effect. The benefits would be SoC (separation of concerns). Example Swift 2.0 projects for both patterns.
https://github.com/justinmfischer/SwiftyExpandingCells
https://github.com/justinmfischer/SwiftyAccordionCells
After getting the index path in didSelectRowAtIndexPath just reload the cell with following method
reloadCellsAtIndexpath
and in heightForRowAtIndexPathMethod check following condition
if selectedIndexPath != nil && selectedIndexPath == indexPath {
return yourExpandedCellHieght
}
Related
I have a tableview and in each cell there is a checkbox. I also have a "select all" button.
My problem is that when I click select all I want to update all the checkboxes to checked state. So from a list of 100 cells, all get checked but every 13th cell does not. To make it clearer, on my simulators screen are 12 cells visible that all get checked. When I start scrolling, the first cell that comes up is unchecked, and is then followed by 12 checked ones :S
When I scroll a little and click "select all" again, the skipped ones become also checked..
Anyone have a clue what am I missing?
This is the cell code:
class ListTableViewCell: UITableViewCell {
#IBOutlet weak var checkbox: UIButton!
var buttonState = false{
didSet{
if buttonState{
checkbox.setImage(#imageLiteral(resourceName: "checked"), for: .normal)
}else{
checkbox.setImage(#imageLiteral(resourceName: "unchecked"), for: .normal)
}
}
}
#IBAction func checkboxAction(_ sender: UIButton) {
if buttonState {
buttonState = false
}else{
buttonState = true
}
}
func simulateCheck(){
buttonState = true
}
And here are some snipets from my controller:
private var articleValues: [ArticleValue] = []{
didSet{
tableView.reloadData()
}
}
func selectAll(){
for i in 0..<articleValues.count{
let cell = tableView.cellForRow(at: IndexPath(item: i, section: 0)) as? ListTableViewCell
cell?.simulateCheck()
tableView.reloadData()
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "articleValueItem", for: indexPath)
// Cell Configuration
let articleValue = articleValues[indexPath.row]
if let articleValueCell = cell as? ListTableViewCell{
articleValueCell.articleValue = articleValue
}
return cell
}
Your UITableView is backed by a data source. This means that you shouldn't change cells directly like you do here:
cell?.simulateCheck()
tableView.reloadData()
Instead you should keep a list of all the checked positions, maybe another array that has bools for each corresponding articleValue (this is not the best design).
var checkedValues = Bool
In your
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell method you would then set the state of the cell:
articleValueCell.buttonState = checkedValues[indexPath.row]
In your selectAll method fill this array with true values and then call tableView.reloadData()
private var checkedValues = [Bool]()
private var articleValues: [ArticleValue] = []{
didSet{
checkedValues = Array(repeating: false, count: articleValues.count)
tableView.reloadData()
}
}
func selectAll(){
checkedValues = Array(repeating: true, count: articleValues.count)
tableView.reloadData()
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "articleValueItem", for: indexPath)
// Cell Configuration
let articleValue = articleValues[indexPath.row]
if let articleValueCell = cell as? ListTableViewCell{
articleValueCell.articleValue = articleValue
articleValueCell.buttonState = checkedValues[indexPath.row]
}
return cell
}
Another mistake is that you should never iterate on all the cells in the table because they are reused, no point in going through your data source and getting a cell for each. It only makes sense to iterate through tableView.visibleCells. But like in your case, most of the time you don't need that either, you should just update your data source accordingly and reload the table or just the modified cell.
It's not recommended that you refer to cells directly within a table view. The reason is that UITableViews have an efficient method of only loading the cells as they are needed (and deallocating them when they are no longer needed, e.g. the cell scrolls off screen). Because of this the cell you are try to refer to may not be loaded.
Instead you should interact with it via the cellForRowAt method. If you want to "select all" cells, you should create a property that stores the value of checked or not checked via a Bool and then set all of the ArticleValue elements to true for that property and reload the data inside selectAll().
It could work something like this:
func selectAll() {
articleValues.forEach {
$0.checked = true
}
tableView.reloadData()
}
// ...
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "articleValueItem", for: indexPath)
// Cell Configuration
let articleValue = articleValues[indexPath.row]
if let articleValueCell = cell as? ListTableViewCell{
articleValueCell.articleValue = articleValue
if articleValue.checked {
articleValueCell.simulateCheck()
}
}
return cell
}
I have a tableViewCell that uses a checkmark in accessoryType of cell. I have a function that puts the contents of the cell into textField and similarly removes the text from the text field when it is unchecked.
It seems to work fine but if I check a cell and want to check a cell thats not visible (IOW) I need to scroll the tableView, the cell that was checked (is now not visible) seems to uncheck itself (Only when I check a new visible cell).
The multi select works with visible cells only.
Here is my code:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdentifier, forIndexPath: indexPath)
let row = indexPath.row
cell.textLabel?.text = painArea[row]
cell.accessoryType = .None
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//selectedRow = indexPath
tableView.deselectRowAtIndexPath(indexPath, animated: true)
let row = indexPath.row
let cell = tableView.cellForRowAtIndexPath(indexPath)
if cell!.accessoryType == .Checkmark {
cell!.accessoryType = .None
} else {
cell!.accessoryType = .Checkmark
}
populateDescription()
print(painArea[row])
}
var painDescription = ["very sore"]
func populateDescription() {
painDescription.removeAll()
severityText.text = ""
for cell in tableView.visibleCells {
if cell.accessoryType == .Checkmark {
painDescription.append((cell.textLabel?.text)! + " ")
}
var painArea = ""
var i = 1
while i <= painDescription.count {
painArea += painDescription[i-1] + "~"
i = i + 1
}
severityText.text = painArea
}
I hope I am explaining myself adequately. I don't want the non visible cells to be unchecked and thus removed from my text field unless I uncheck it.
Any ideas would be most appreciated.
Kind regards
Wayne
It is happing because of reusability of Cell. Instead of setting Checkmark in didSelect try to set in the cellForRowAtIndexPath. Also you need to create model class like this to solve your problem
class ModelClass: NSObject {
var isSelected: Bool = false
//Declare other property that you are using cellForRowAtIndexPath
}
Now check this isSelected in cellForRowAtIndexPath like below.
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdentifier, forIndexPath: indexPath)
let row = indexPath.row
let modelClass = painArea[row]
cell.textLabel?.text = modelClass.name
if modelClass.isSelected {
cell.accessoryType = .Checkmark
}
else {
cell.accessoryType = .None
}
return cell
}
Now change your didSelect like this
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var modelClass = painArea[indexPath.row]
modelClass.isSelected = !modelClass.isSelected
self.tableView.reloadData()
populateDescription()
print(painArea[row])
}
Hope this will help you.
It's because whenever u scroll the cell out of view and scroll back, it will call the cellForRow again and set everything back to default, what you have to do is create a properly dataSource, whenever a cell got checked, you update the dataSource with a Bool indicate it has been checked, then set it back in the cellForRow or cellWillDisplay
I have a working UITableview which currently allows multiple Cells to be selected. I would like just one to be selected and if a previous one was chosen then the new selection should uncheck the previous one. Mind bender! Here is my code:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let indexPath = tableView.indexPathForSelectedRow();
let CurrentCell = tableView.cellForRowAtIndexPath(indexPath!) as UITableViewCell!;
if CurrentCell.imageView!.image == nil {
let SelectedCell = CurrentCell.textLabel!.text
CurrentCell.imageView!.image = UIImage(named:"check")!
CurrentCell.textLabel!.font = UIFont(name:"OpenSans-Bold", size:15)
println("Selected Cell is")
println(SelectedCell)
} else {
CurrentCell.imageView!.image = nil
let SelectedCell = "NothingSelected"
CurrentCell.textLabel!.font = UIFont(name:"OpenSans-Regular", size:15)
println("Nothing Selected")
}
}
A very effective way to manage the selection state is to add a selected property to the data model, in this example just called Model
class Model {
var selected = false
...
}
In the UITableViewController class we assume there is an Array data which holds the Model items as the data source for the table view.
var data = [Model]()
In cellForRowAtIndexPath set the image and text depending on the selected property:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("MyIdentifier") as! UITableViewCell
let currentItem = data[indexPath.row]
if currentItem.selected {
cell.imageView!.image = UIImage(named:"check")!
cell.textLabel!.font = UIFont(name:"OpenSans-Bold", size:15)
} else {
cell.imageView!.image = nil
cell.textLabel!.font = UIFont(name:"OpenSans-Regular", size:15)
}
return cell
}
In didSelectRowAtIndexPath set the property selected of the currently selected cells to false, set the property selected of the just selected cell to true and reload the table, the changes are applied in cellForRowAtIndexPath
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
data.filter {$0.selected == true}.map {$0.selected = false}
let currentItem = data[indexPath.row]
currentItem.selected = true
tableView.reloadData()
}
you can create your instance var to keep your selection index
and then in your cellForINdexPath method check if the current cell is equals to it:
that was discussed here:
How to uncheck all rows using UITableViewCellAccessoryCheckmark
So I have a Segmented Control that switches between 2 TableViews & 1 MapView inside a MainVC.
I'm able to switch the views in the simulator by adding an IBAction func changedInSegmentedControl to switch which views are hidden while one of them is active.
I created 2 custom TableViewCells with XIBs. I also added tags with each TableView.
My question is how do I add them in cellForRowAtIndexPath?
Currently, my code is:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
// var cell: UITableViewCell
if (tableView.tag == 1) {
cell: CardTableViewCell = tableView.dequeueReusableCellWithIdentifier("CardCell") as! CardTableViewCell
return cell
}
else if (tableView.tag == 2) {
cell: ListTableViewCell = tableView.dequeueReusableCellWithIdentifier("ListCell") as! ListTableViewCell
return cell
}
}
Of course Swift requires a "return cell" for the function outside the If statements. I tried with a var cell: UITableViewCell outside, but run into trouble finishing the dequeuReusableCellWithIdentifier.
Anyone have some idea how to do this? Thanks.
This is how I approached it (Swift 3.0 on iOS 10). I made one tableView with two custom cells (each is their own subclass). The segmented control is on my navigationBar and has two segments: People and Places.
There are two arrays within my class, (people and places) which are the data sources for the two table views. An action attached to the segmentedControl triggers the reload of the table, and the switch statement in cellForRowAtIndex controls which cell from which array is loaded.
I load data into the two data arrays from an API call, the asynchronous completion of which triggers dataLoaded(), which reloads the tableView. Again I don't have to worry about which segment is selected when the table is reloaded: cellForRowAtIndex takes care of loading the correct data.
I initialize a basic cell just as UITableViewCell and then in the case statement I created and configure the custom cell. Then I return my custom type cell at the end, and as long as the reuseIdentifiers and classes are correct in cellForRowAtIndex, the correct cell is initialized and displayed in the tableView.
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var peoplePlacesControl: UISegmentedControl!
fileprivate var placesArray: [PlaceModel]?
fileprivate var usersArray: [UserModel]?
#IBAction func segmentedControlActionChanged(_ sender: AnyObject) {
tableView.reloadData()
switch segmentedControl.selectedSegmentIndex {
case 0:
loadUsersfromAPI()
case 1:
loadPlacesFromAPI()
default:
// shouldnt get here
return
}
}
func dataLoaded() {
switch peoplePlacesControl.selectedSegmentIndex {
case 0: // users
if favoriteUsersArray == nil {
self.tableView.reloadData()
} else {
hideTableViewWhileEmpty()
}
case 1: // places
if placesArray != nil {
self.tableView.reloadData()
} else {
hideTableViewWhileEmpty()
}
default:
return
}
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch segmentedControl.selectedSegmentIndex {
case 0:
if usersArray != nil {
return usersArray!.count
} else {
return 0
}
case 1: // places
if placesArray != nil {
return placesArray!.count
} else {
return 0
}
default:
return 0
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = UITableViewCell()
switch peoplePlacesControl.selectedSegmentIndex {
case 0: // people
let userCell = tableView.dequeueReusableCell(withIdentifier: "MyUserCell", for: indexPath) as! MyUserTableViewCell
if usersArray != nil && indexPath.row < usersArray!.count {
let user = usersArray![indexPath.row]
userCell.configure(user)
userCell.myDelegate = self
}
cell = userCell as MyUserTableViewCell
case 1: // places
let placeCell = tableView.dequeueReusableCell(withIdentifier: "MyPlaceCell", for: indexPath) as! MyPlaceTableViewCell
if favoritePlacesArray != nil && indexPath.row < favoritePlacesArray!.count {
let place = placesArray![indexPath.row]
placeCell.configure(place)
placeCell.myDelegate = self
}
cell = placeCell as MyPlaceTableViewCell
default:
break
}
return cell
}
I have made change in your code.
Use following code
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
if (tableView.tag == 1) {
cell: CardTableViewCell = tableView.dequeueReusableCellWithIdentifier("CardCell") as! CardTableViewCell
return cell
}
cell: ListTableViewCell = tableView.dequeueReusableCellWithIdentifier("ListCell") as! ListTableViewCell
return cell
}
I have been struggling with this issue. I can scroll freely between the tag cells because it actually remembers them. But if I get the description cell out of my view it immediately removes it from memory and doesn't get it back. Instead I just get "fatal error: unexpectedly found nil while unwrapping an Optional value" when I scroll back to the description. So I have the following pieces of code:
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true)
tableView.delegate = self
tableView.dataSource = self
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 44.0
tableView.reloadData()
}
I don't know if the viewWillAppear is of any importance in this case but if it is then tell me. Anyway, this is for filling in the cells in my table view:
func GetDescription(cell:descCell, indexPath: NSIndexPath) {
cell.descText.text = descriptTextTwo.htmlToString
}
func GetTagCell(cell:basicTag, indexPath: NSIndexPath) {
let item = tagResults[indexPath.row]!
cell.titleLabel.text = item["tagname"]?.htmlToString
}
func GetValueCell(cell: basicTag, indexPath: NSIndexPath) {
let item = tagResults[indexPath.row]!
cell.valueLabel.text = item["value"]?.htmlToString
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if filledDescription == false {
return getDescriptionAtIndexPath(indexPath)
} else {
return getTagAtIndexPath(indexPath)
}
}
func getDescriptionAtIndexPath(indexPath:NSIndexPath) -> descCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier(descriptionCell) as descCell
GetDescription(cell, indexPath: indexPath)
filledDescription = true
return cell
}
func getTagAtIndexPath(indexPath: NSIndexPath) -> basicTag {
let cell = self.tableView.dequeueReusableCellWithIdentifier(tagCell) as basicTag
GetTagCell(cell, indexPath: indexPath)
GetValueCell(cell, indexPath: indexPath)
return cell
}
So how can I make Swift remember what is in the first cell? Because I am guessing that that is what happens, that it removes what was in the first cell as soon as you get it out of the view. I am guessing I have to do something with "indexPath" but I am not exactly sure how to implement it in this case and if I am far off, please tell me what I am doing wrong. Thanks!
Change the following :
if filledDescription == false {
return getDescriptionAtIndexPath(indexPath)
} else {
return getTagAtIndexPath(indexPath)
}
With:
if indexPath.row == 0 {
return getDescriptionAtIndexPath(indexPath)
} else {
return getTagAtIndexPath(indexPath)
}
This will make sure that the first cell in the table will always treated as a "Description" cell. Since the filledDescription never becomes false after your set it to true, when you get back to the first cell it is treated as a "Tag" cell (due to the if line) where in fact the reusable cell contains "Description" cell data