In my application I have this tableview. Each cell contains a label and a UISwitch (default state off).
It works great and I use it to filter value contained in another tableview. My question is, how can I do to have a pre-selection on load? I'll explain better, if I select [section 1 (Stato) - rows 1, 3] then I press the done button I'll make the view disappear. If I present again the viewController I'd like to see the same switches pre-selected.
initially I thought I have to save the indexPath, but it didn't work.
This is my tableView code:
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return names.count
}
override func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView {
let view: UIView = UIView(frame: CGRectMake(0, 0, tableView.frame.size.width, 18))
let label: UILabel = UILabel(frame: CGRectMake(10, 5, tableView.frame.size.width, 18))
label.font = UIFont.boldSystemFontOfSize(18)
let string: String = names[section]
label.text = string
label.textColor = .redColor()
label.textAlignment = NSTextAlignment.Left
view.addSubview(label)
view.backgroundColor = ColorHex().UIColorFromHex(0xEEEEEE)
return view
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
var number: Int!
switch section {
case 0:
number = 1 //reset filter
break
case 1:
number = statusesDict.count
break
case 2:
number = queuesDict.count
break
case 3:
number = typesDict.count
break
case 4:
number = severitiesDict.count
default:
break
}
return number
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell: TicketsFilterCell! = tableView.dequeueReusableCellWithIdentifier("cellTicketFilter", forIndexPath: indexPath) as! TicketsFilterCell
cell.delegate = self
if self.selectedIndexPathArray.contains(indexPath) {
cell.switchFilter.setOn(true, animated: false)
} else {
cell.switchFilter.setOn(false, animated: false)
}
if(indexPath.section == 0) {
let text = “Reset all”
cell.textFilter.text = text
} else if(indexPath.section == 1) {
let text = statusesDict[indexPath.row]?.capitalizedString
cell.textFilter.text = text
} else if(indexPath.section == 2) {
let text = queuesDict[indexPath.row]?.capitalizedString
cell.textFilter.text = text
} else if(indexPath.section == 3) {
let text = typesDict[indexPath.row]?.capitalizedString
cell.textFilter.text = text
} else if (indexPath.section == 4) {
let text = severitiesDict[indexPath.row]?.capitalizedString
cell.textFilter.text = text
}
return cell
}
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool
{
return false
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
{
if let index = self.selectedIndexPathArray.indexOf(indexPath) {
self.selectedIndexPathArray.removeAtIndex(index)
} else {
self.selectedIndexPathArray.append(indexPath)
}
let cell = self.tableview.cellForRowAtIndexPath(indexPath) as! TicketsFilterCell
cell.toggleSwitch()
}
{
let indexPath = self.tableview .indexPathForCell(cell)
if (status == true) {
if self.selectedIndexPathArray.indexOf(indexPath!) == nil {
self.selectedIndexPathArray.append(indexPath!)
}
//update dictSelected
switch (self.tableview.indexPathForCell(cell)!.section) {
case 0:
print("section 0, reset all filter")
self.dictSelectedReset.updateValue(true, forKey: String((indexPath?.row)! + 1))
break
case 1:
//take data from status
print("section 1, value -> (statusesDict[(indexPath?.row)!]) for row (String(indexPath!.row))")
self.dictSelectedStatus.updateValue(statusesDict[(indexPath?.row)!]!, forKey: String((indexPath?.row)! + 1))
break
case 2:
//take data from queue
print("section 2, value -> (queuesDict[(indexPath?.row)!]) for row (String(indexPath!.row))")
self.dictSelectedQueue.updateValue(queuesDict[(indexPath?.row)!]!, forKey: String((indexPath?.row)! + 1))
break
case 3:
//take data from type
print("section 3, value -> (typesDict[(indexPath?.row)!]) for row (String(indexPath!.row))")
self.dictSelectedType.updateValue(typesDict[(indexPath?.row)!]!, forKey: String((indexPath?.row)! + 1))
break
case 4:
//take data from severity
print("section 4, value in -> (severitiesDict[(indexPath?.row)!]) for row (String(indexPath!.row))")
self.dictSelectedSeverity.updateValue(severitiesDict[(indexPath?.row)!]!, forKey: String((indexPath?.row)! + 1))
break
default:
break
}
}
else {
if let index = self.selectedIndexPathArray.indexOf(indexPath!) {
self.selectedIndexPathArray.removeAtIndex(index)
}
//update dictSelected
//if exist, delete re-tapped
switch (self.tableview.indexPathForCell(cell)!.section) {
case 0:
if (dictSelectedReset.keys.contains(String((indexPath?.row)! + 1))) {
dictSelectedReset.removeValueForKey(String((indexPath?.row)! + 1))
}
break
case 1:
if (dictSelectedStatus.keys.contains(String((indexPath?.row)! + 1))) {
dictSelectedStatus.removeValueForKey(String((indexPath?.row)! + 1))
}
break
case 2:
if (dictSelectedQueue.keys.contains(String((indexPath?.row)! + 1))) {
dictSelectedQueue.removeValueForKey(String((indexPath?.row)! + 1))
}
break
case 3:
if (dictSelectedType.keys.contains(String((indexPath?.row)! + 1))) {
dictSelectedType.removeValueForKey(String((indexPath?.row)! + 1))
}
break
case 4:
if (dictSelectedSeverity.keys.contains(String((indexPath?.row)! + 1))) {
dictSelectedSeverity.removeValueForKey(String((indexPath?.row)! + 1))
}
break
default:
break
}
}
}
where
selectedIndexPathArray = [NSIndexPath]()
and this is CellProtocol:
protocol CellProtocol : class {
func switchButtonTapped(WithStatus status : Bool, ForCell cell : TicketsFilterCell)
}
class TicketsFilterCell: UITableViewCell {
@IBOutlet var textFilter: UILabel!
@IBOutlet weak var switchFilter: UISwitch!
weak var delegate : CellProtocol!
class var reuseIdentifier: String? {
get {
return "TicketsFilterCell"
}
}
override func awakeFromNib() {
super.awakeFromNib()
}
// Uncomment here to show switches that are preselected on load
// override func setSelected(selected: Bool, animated: Bool) {
// super.setSelected(selected, animated: animated)
// self.delegate .switchButtonTapped(WithStatus: selected, ForCell: self)
// }
@IBAction func switchTapped(sender: UISwitch) {
self.delegate.switchButtonTapped(WithStatus: sender.on, ForCell: self)
}
// select UISwitch and change status
func toggleSwitch() {
if self.switchFilter.on {
self.switchFilter .setOn(false, animated: true)
} else {
self.switchFilter .setOn(true, animated: true)
}
self.delegate.switchButtonTapped(WithStatus: self.switchFilter.on, ForCell: self)
}
}
As you can see I tried to solve the problem using the func setSelected in the CellProtocol but if I uncomment and use it I have nil error.
How can I do?
Thanks in advance.
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