Recently implemented trailingSwipeActionsConfigurationForRowAt , where after swiping from right to left showing two options and its working fine. But the problem is when i select multiple rows or single row, after swiping the row/s they are getting deselected. Is there a way to keep the selection even after swiping?
Below is my code
func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
let renameAction = contextualToggleRenameAction(forRowAtIndexPath: indexPath)
let lastResAction = contextualToggleLastResponseAction(forRowAtIndexPath: indexPath)
let swipeConfig = UISwipeActionsConfiguration(actions: [renameAction, lastResAction])
swipeConfig.performsFirstActionWithFullSwipe = false
return swipeConfig
}
func contextualToggleLastResponseAction(forRowAtIndexPath indexPath: IndexPath) -> UIContextualAction {
let sensorData = sensorsList?[indexPath.row]
var lastResponse = ""
if sensorData != nil{
if let lstRes = sensorData!["last_response"] as? String{
lastResponse = lstRes
}
}
let action = UIContextualAction(style: .normal, title: lastResponse) { (contextAction: UIContextualAction, sourceView: UIView, completionHandler: (Bool) -> Void) in
print("Last Response Action")
}
action.backgroundColor = UIColor(red: 61/255, green: 108/255, blue: 169/255, alpha: 1.0)
return action
}
Holy crap, I fixed this stupid issue.
Yes, yes make sure tableView.allowsSelectionDuringEditing = true and tableView.allowsMultipleSelectionDuringEditing = true.
But...
Shout-out to this SO answer which almost directly led me on the way to success (see here).
KEY: Re-select/de-select the rows in your implementation of setEditing, which is a method you override. UITableView goes into editing mode when swiping.
IMPORTANT NOTE: Call super.setEditing(...) before any of your code, as shown below, or it likely won't work, or at least not perfectly.
override func setEditing(_ editing: Bool, animated: Bool) {
super.setEditing(editing, animated: animated)
for i in 0..<your data.count {
if this item is selected {
self.tableView.selectRow(at: IndexPath(row: i, section: 0), animated: false, scrollPosition: .none)
} else {
self.tableView.deselectRow(at: IndexPath(row: i, section: 0), animated: false)
}
}
}
A swipe is considered as an edit, so you can enable allowsSelectionDuringEditing if you want to keep the selected state:
tableView.allowsSelectionDuringEditing = true
Depending on indexPathsForSelectedRows doesn't always give the expected result.
Instead you should maintain and array of selectedIndexPaths.
Here is a code snippet to demonstrate:
var selectedIndexPaths = [IndexPath]()
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if selectedIndexPaths.contains(indexPath) {
selectedIndexPaths.removeAll { (ip) -> Bool in
return ip == indexPath
}else{
selectedIndexPaths.append(indexPath)
}
}