选择和取消选择UITableViewCells - Swift

Question

Currently I am able to tap a cell and select it using didSelectRowAtIndexPath . However, I am unable to deselect it when tapped. I wish to toggle these two features.

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {


    var selectedCell = tableView.cellForRowAtIndexPath(indexPath)!
    selectedCell.backgroundColor = UIColor.purpleColor()

    tableView.deselectRowAtIndexPath(indexPath, animated: true)

}

• I have a TableView in my View Controller .
• The dataSource and delegate are already set up.
• Multiple selection is enabled in UIBuilder for the table.

Answer 1

I could have sworn I tried this before and it didn't work then.

I decided to use two functions..

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    var selectedCell = tableView.cellForRowAtIndexPath(indexPath)!
    selectedCell.backgroundColor = UIColor.purpleColor()        
}

func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
    var deselectedCell = tableView.cellForRowAtIndexPath(indexPath)!
    deselectedCell.backgroundColor = UIColor.clearColor()
}

Answer 2

have you tried to create a simple bool and verify in the next tap. If its true you use the code bellow else you keep it tapped until you tap it again

tableView.deselectRow(at: indexPath, animated: true)

Answer 3

Updated Code Syntax for Swift 3 / 4

 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
     let selectedCell = tableView.cellForRow(at: indexPath)
     currentCell.backgroundColor = UIColor.purple
 }

 func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
     let deselectedCell = tableView.cellForRow(at: indexPath)
     currentCell.backgroundColor = UIColor.clear
 }