Question or problem in the Swift programming language:
I was wondering if there was a proper way to cancel the swipe left on a tableview cell so that it slides back to hide the buttons. I’m not really sure how to correctly say that, lol. But please see the GIF below. In the first GIF I have no code after the cancel button gets pressed, and the buttons stay visible.
The only idea I had was to reload the cell with this code self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic) But this gives a look of the buttons shifting up, whereas I’d prefer it to appear the cell shifts backing into place to the right. See the reload GIF below.
How should I be doing this properly? See below for my code that adds the buttons and what their functions are.
override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
let edit = UITableViewRowAction(style: UITableViewRowActionStyle.Normal, title: "Edit") {
(action, indexPath) in
if (indexPath == self.indexSelect) {
print("Editting Selected Cell")
} else {
print("Editting a difference cell than selected")
}
let section: Sections = self.frc.objectAtIndexPath(indexPath) as! Sections
let count: Int = self.sectionCount(section.section!)
var msg: String?
let sectionName: String = section.section!
if (count > 0) {
msg = "There are \(count) other Items using this Section currently. Editing the Section name \"\(sectionName)\" will affect them all. \n\nThis will be changed immediately!"
}
let alert = UIAlertController(title: "Edit Section Name", message: msg, preferredStyle: UIAlertControllerStyle.Alert)
let editAction = UIAlertAction(title: "Edit", style: UIAlertActionStyle.Destructive) {
UIAlertAction in
let sectionName = Util.trimSpaces(alert.textFields![0].text!)
if (sectionName != section.section) {
if (Util.checkSectionName(sectionName, moc: self.moc!) == false) {
let entityDesc = NSEntityDescription.entityForName("Sections", inManagedObjectContext: self.moc!)
let newSection: Sections = Sections(entity: entityDesc!, insertIntoManagedObjectContext: self.moc)
newSection.section = sectionName
do {
try self.moc!.save()
} catch {
fatalError("New item save failed")
}
let oldSection: Sections = section
let fetchReq = NSFetchRequest(entityName: "Catalog")
let pred = NSPredicate(format: "sections.section == %@", oldSection.section!)
fetchReq.predicate = pred
do {
let results = try self.moc!.executeFetchRequest(fetchReq)
for rec in results {
let catalog: Catalog = rec as! Catalog
catalog.sections = newSection
}
do {
try self.moc!.save()
} catch {
fatalError("Failed to Save after Delete")
}
} catch {
fatalError("Fetching Items to delete section failed")
}
self.moc!.deleteObject(oldSection)
do {
try self.moc!.save()
} catch {
fatalError("Failed to Save after Delete")
}
} else {
Util.msgAlert("Duplicate Section Name", msg: "\"\(sectionName)\" section name already exists.", curVC: self)
self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
} else {
self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
}
let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) {
UIAlertAction in
//self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
alert.addAction(editAction)
alert.addAction(cancel)
alert.addTextFieldWithConfigurationHandler {
(txtFld) -> Void in
txtFld.text = section.section
txtFld.autocapitalizationType = UITextAutocapitalizationType.Words
txtFld.autocorrectionType = UITextAutocorrectionType.Default
txtFld.clearButtonMode = UITextFieldViewMode.WhileEditing
}
self.presentViewController(alert, animated: true, completion: nil)
}
edit.backgroundColor = UIColor.init(red: 84/255, green: 200/255, blue: 214/255, alpha: 1)
let delete = UITableViewRowAction(style: .Destructive, title: "Delete") {
(action, indexPath) in
let section: Sections = self.frc.objectAtIndexPath(indexPath) as! Sections
let count: Int = self.sectionCount(section.section!)
if (count > 0) {
let alert = UIAlertController(title: "Confirm Delete", message: "There are \(count) Items using this Section currently. Deleting this Section will reset them all to blank. \n\nThis can't be undone and will take affect immediately!", preferredStyle: UIAlertControllerStyle.Alert)
let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { UIAlertAction in }
let deleteAction = UIAlertAction(title: "Delete", style: UIAlertActionStyle.Destructive) { UIAlertAction in
var blankSection: Sections?
var fetchReq = NSFetchRequest(entityName: "Sections")
var pred = NSPredicate(format: "section == %@", "")
fetchReq.predicate = pred
do {
let results = try self.moc!.executeFetchRequest(fetchReq)
blankSection = (results.first as! Sections)
} catch {
fatalError("Fetching blank section failed")
}
fetchReq = NSFetchRequest(entityName: "Catalog")
pred = NSPredicate(format: "sections.section == %@", section.section!)
fetchReq.predicate = pred
do {
let group = try self.moc!.executeFetchRequest(fetchReq)
for rec in group {
let catalog: Catalog = rec as! Catalog
catalog.sections = blankSection
}
} catch {
fatalError("Fetching Items to delete section failed")
}
self.moc!.deleteObject(section)
do {
try self.moc!.save()
} catch {
fatalError("Failed to Save after Delete")
}
if (self.sectionUpdateProtocol != nil) {
self.sectionUpdateProtocol!.sectionUpdate(self, section: blankSection!)
}
//self.navigationController!.popViewControllerAnimated(true)
}
alert.addAction(deleteAction)
alert.addAction(cancel)
self.presentViewController(alert, animated: true, completion: nil)
} else {
self.moc!.deleteObject(section)
do {
try self.moc!.save()
} catch {
fatalError("Failed to Save after Delete")
}
}
}
return [delete, edit]
}
How to solve the problem:
Just call:
tableView.setEditing(false, animated: true)
