Switching Custom Cells in UITableView in swift - ios

Question

What I'm trying to achieve is, when a cell in UITableview is tapped, it will expand and display custom cell1, other cells will remain custom cell2.
What I achieved so far is expand the cell, but the custom cell will not change.
After initial investigation, I thought it's the currentRow value wasn't changed. But then I realized if it isn't changed, the row won't expand. Thank you for your help.
Here are the code:
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var currentRow = 0
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if indexPath.row == currentRow {
let cell:selectedWeatherViewCell = self.weatherCityTable.dequeueReusableCellWithIdentifier("selectedWeatherCell") as! selectedWeatherViewCell
cell.selectedCityLabels.text = city[indexPath.row]
cell.selectedTempLabels.text = tempertureF[indexPath.row]
cell.backgroundColor = UIColor.redColor()
return cell
} else {
let cell:cityWeatherViewCell = self.weatherCityTable.dequeueReusableCellWithIdentifier("cityWeatherViewCell") as! cityWeatherViewCell
cell.cityLabels.text = city[indexPath.row]
cell.tempLabels.text = tempertureF[indexPath.row]
cell.backgroundColor = UIColor.orangeColor()
return cell
}
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let selectedRowIndex = indexPath
currentRow = selectedRowIndex.row
tableView.beginUpdates()
tableView.endUpdates()
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
if indexPath.row == currentRow {
return 260
} else {
return 100
}
}
}

Answer 1

You need to reload the affected row(s) in order for the cell type to change -
var currentRow:Int?
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
var reloadRows=[NSIndexPath]()
if self.currentRow != nil && indexPath.row != self.currentRow! {
reloadRows.append(NSIndexPath(forRow: self.currentRow!, inSection: indexPath.section))
}
self.currentRow=indexPath.row
reloadRows.append(NSIndexPath(forRow: self.currentRow!, inSection: indexPath.section))
tableView.reloadRowsAtIndexPaths(reloadRows, withRowAnimation: UITableViewRowAnimation.Automatic)
tableView.deselectRowAtIndexPath(indexPath, animated: true)
}