I want to put 2 custom cell in TableView, but I have a small problem with it. I tried to find answer in Google and StackOverflow, but answers can't help me.
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if indexPath.row == 0{
var cell: CustomCell = tableView.dequeueReusableCellWithIdentifier("FistCustomTableViewCell", forIndexPath: indexPath) as CustomCell
//set cell2
}
if indexPath.row >= 1{
var cell: CustomCell = tableView.dequeueReusableCellWithIdentifier("CustomTableViewCell", forIndexPath: indexPath) as CustomCell
let cons = aArray[indexPath.row - 1]
// set cell2
}
return cell // (!) Use of unresolved identifier "cell"
}
You need to draw the cell declaration outside:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell: CustomCell!
if indexPath.row == 0{
cell = tableView.dequeueReusableCellWithIdentifier("FistCustomTableViewCell", forIndexPath: indexPath) as CustomCell
//set cell2
}
if indexPath.row >= 1{
cell = tableView.dequeueReusableCellWithIdentifier("CustomTableViewCell", forIndexPath: indexPath) as CustomCell
let cons = aArray[indexPath.row - 1]
// set cell2
}
return cell
}
You have to declare the cell out of the if statement.
Related
I want to identify many custom cell in table view "i build them in storyboard " but the are error ask from me to return value , i am trying to return nil and int value and cell but the error be same
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if indexPath == 0 {
let cell = tableView.dequeueReusableCellWithIdentifier("CheefsCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
else if indexPath == 1 {
let cell = tableView.dequeueReusableCellWithIdentifier("BeautyCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
else if indexPath == 2 {
let cell = tableView.dequeueReusableCellWithIdentifier("StudentServicesCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
else if indexPath == 3 {
let cell = tableView.dequeueReusableCellWithIdentifier("ArtAndDesigneCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
else if indexPath == 4 {
let cell = tableView.dequeueReusableCellWithIdentifier("StoreCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
else if indexPath == 5 {
let cell = tableView.dequeueReusableCellWithIdentifier("OthersCell", forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = .DisclosureIndicator
return cell }
return
}
update ::
git hub link /
The method cellForRowAtIndexPath requires to return a non-optional UITableViewCell, so you must ensure to return a cell in any case. A simple return or return nil is not allowed.
The code can be simplified, most of it is redundant. The only difference is the identifier.
A suitable solution is a switch statement on the row property of the indexpath.
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var identifier : String
switch indexPath.row {
case 0: identifier = "CheefsCell"
case 1: identifier = "BeautyCell"
case 2: identifier = "StudentServicesCell"
case 3: identifier = "ArtAndDesigneCell"
case 4: identifier = "StoreCell"
default: identifier = "OthersCell"
}
let cell = tableView.dequeueReusableCellWithIdentifier(identifier, forIndexPath: indexPath)
cell.accessoryType = .DisclosureIndicator
return cell
}
You're getting an error cause you're not returning a cell from the method.
Change your code so it always returns a cell.
When checking indexPaths, use their row property - indexPath.row.
Consider replacing your if-else tree with switch.
Another example based on #vadian's answer:
static let identifiers = [ "CheefsCell", "BeautyCell", "StudentServicesCell", "ArtAndDesigneCell", "StoreCell" ]
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let identifier = (indexPath.row < count) ? identifiers[ indexPath.row ] : "OthersCell"
var cell = tableView.dequeueReusableCellWithIdentifier(identifier, forIndexPath: indexPath)
if cell == nil {
cell = UITableViewCell() // allocate a new cell here
}
cell.accessoryType = .DisclosureIndicator
// configure your cell here
return cell
}
How can I return a TableViewcell in cellForRowAtIndexPath delegate method , if I m using multiple UITableView in a Single ViewController, One TableView has Custom UITableViewCell and the other has default UITableViewCell . My problem is I m not able to cast the UITableViewCell to Custom TableViewCell type .
Code used as follows ,
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:UITableViewCell?
if tableView == self.tvCity {
var cell:UITableViewCell?
cell = tableView.dequeueReusableCellWithIdentifier(cityCellIdentifier, forIndexPath: indexPath) as UITableViewCell
let row = indexPath.row
cell!.textLabel?.text = self.cityList[row].cityEn
}
if tableView == self.tvBranchByCity {
var cell:BranchNearMeTableViewCell?
cell = (tableView.dequeueReusableCellWithIdentifier(branchCellIdentifier, forIndexPath: indexPath) as! BranchNearMeTableViewCell)
let row = indexPath.row
cell.branchName = self.branchList[row].name// here cell.branchName is not accessible.
}
return cell!
}
Please advise . Thanks in advance.
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if tableView == self.tvCity {
var cell:UITableViewCell?
cell = tableView.dequeueReusableCellWithIdentifier(cityCellIdentifier, forIndexPath: indexPath) as UITableViewCell
let row = indexPath.row
cell!.textLabel?.text = self.cityList[row].cityEn
return cell!
}
if tableView == self.tvBranchByCity {
var cell:BranchNearMeTableViewCell?
cell = (tableView.dequeueReusableCellWithIdentifier(branchCellIdentifier, forIndexPath: indexPath) as! BranchNearMeTableViewCell)
let row = indexPath.row
cell.branchName = self.branchList[row].name as! String // here cell.branchName is not accessible.
return cell!
}
}
Differentiate tables with tag
see example :
if tableView.tag == 2000
{
identifier = "First Table"
let cell = tableView.dequeueReusableCellWithIdentifier(identifier, forIndexPath: indexPath)
return cell
}
else
{
identifier = "Second Table"
let cell = tableView.dequeueReusableCellWithIdentifier(identifier, forIndexPath: indexPath)
return cell
}
I have a segmented control above two UITableViews, one of which is layered above the other. When segmentedControl.selectedSegmentIndex == 1 one of those table views will hide. The problem, however, is that I can't configure the custom cells of the second table view in my one cellForRowAtIndexPath function. I keep getting: Variable 'cell' used before being initialized.
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
switch segmentedControl.selectedSegmentIndex {
case 0:
var cell = tableView.dequeueReusableCellWithIdentifier("CellOne", forIndexPath: indexPath) as! CellOne
return cell
case 1:
var cellTwo = tableView.dequeueReusableCellWithIdentifier("CellTwo", forIndexPath: indexPath) as! CellTwo
return cellTwo
default:
var cell: UITableViewCell
return cell
}
}
You have default branch with not initialized cell variable that you returns. I would recommend the change like following:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let result: UITableViewCell
if (segmentedControl.selectedSegmentIndex == 0) {
var cellOne = tableView.dequeueReusableCellWithIdentifier("CellOne", forIndexPath: indexPath) as! CellOne
//Configure here
result = cellOne
} else {
var cellTwo = tableView.dequeueReusableCellWithIdentifier("CellTwo", forIndexPath: indexPath) as! CellTwo
//Configure here
result = cellTwo
}
return result
}
I'm struggling with grouped dynamic table view. I want to have 2 groups. Basically, in first group I want to have customers data and on second one orders. First group will have always same number of rows. Any what is my problem - I want to put text field into each row of first section (with different placeholder) but when I run application, textfield is only in last row. Does anybody know what Im doing wrong? Thank you
Declaration of my properties
var textField = UITextField()
var udaje = ["Jméno zákazníka","Kontaktní osoba","Telefon","Email","Fakturační adresa","Dodací adresa","IČO/DIČ"]
TableViewController.swift:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = UITableViewCell()
if (indexPath.section == 0) {
let cell = tableView.dequeueReusableCellWithIdentifier("udajeCell", forIndexPath: indexPath) as! UITableViewCell
self.textField.frame = cell.contentView.frame
self.textField.placeholder = self.udaje[indexPath.row]
cell.contentView.addSubview(textField)
} else if (indexPath.section == 1) {
let cell = tableView.dequeueReusableCellWithIdentifier("pilyCell", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel?.text = "Přidat pilu"
cell.detailTextLabel?.text = "+"
}
return cell
}
try this way code:
your problem is use use the self.textField. not self.textField use cell.textField.
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = UITableViewCell()
if (indexPath.section == 0) {
let cell = tableView.dequeueReusableCellWithIdentifier("udajeCell", forIndexPath: indexPath) as! UITableViewCell
cell.textField.frame = cell.contentView.frame
cell.textField.placeholder = self.udaje[indexPath.row]
cell.contentView.addSubview(textField)
} else if (indexPath.section == 1) {
let cell = tableView.dequeueReusableCellWithIdentifier("pilyCell", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel?.text = "Přidat pilu"
cell.detailTextLabel?.text = "+"
}
return cell
}
I'm trying to complete a UITableView and i'm receiving an error on the final part of the code for one line.
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell
//ERROR IS IN THE LINE ABOVE ("anyobject" is not convertible to "UItableViewCell"
if (indexPath.section == 1) {
let (unit, availability) = myUnits[indexPath.row]
cell.textLabel?.text = unit
cell.detailTextLabel?.text = availability
} else {
let (assessment, mark) = myAssessments[indexPath.row]
cell.textLabel?.text = assessment
cell.detailTextLabel?.text = mark
}
return cell
}
You have to tell the compiler that your cell is of the UITableViewCell class, which means downcasting using the ! mark:
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! UITableViewCell