Update specific Int-based UITableView string in Swift

Question

I am starting a developer in Swift, and I am building a basic application that includes a UITableView. I want to update a specific row of a table using:

self.tableView.reloadRowsAtIndexPaths(paths, withRowAnimation: UITableViewRowAnimation.none) 

and I want the row to be updated to be specified in a row called rowNumber

The problem is that I don’t know how to do this, and all the threads I was looking for are for Obj-C

Any ideas?

Answer 1

You can create NSIndexPath using the line and section number, and then reload it like this:

 let indexPath = NSIndexPath(forRow: rowNumber, inSection: 0) tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Top) 

In this example, I assumed that your table has only one partition (i.e. 0), but you can change this value accordingly.

Update for Swift 3.0:

 let indexPath = IndexPath(item: rowNumber, section: 0) tableView.reloadRows(at: [indexPath], with: .top) 

Answer 2

To solve soft impact animations:

Swift 3:

 let indexPath = IndexPath(item: row, section: 0) tableView.reloadRows(at: [indexPath], with: .fade) 

Swift 2.x:

 let indexPath = NSIndexPath(forRow: row, inSection: 0) tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .Fade) 

This is another way to protect your application from crashes:

Swift 3:

 let indexPath = IndexPath(item: row, section: 0) if let visibleIndexPaths = tableView.indexPathsForVisibleRows?.index(of: indexPath as IndexPath) { if visibleIndexPaths != NSNotFound { tableView.reloadRows(at: [indexPath], with: .fade) } } 

Swift 2.x:

 let indexPath = NSIndexPath(forRow: row, inSection: 0) if let visibleIndexPaths = tableView.indexPathsForVisibleRows?.indexOf(indexPath) { if visibleIndexPaths != NSNotFound { tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .Fade) } } 

Answer 3

In Swift 3.0

 let rowNumber: Int = 2 let sectionNumber: Int = 0 let indexPath = IndexPath(item: rowNumber, section: sectionNumber) self.tableView.reloadRows(at: [indexPath], with: .automatic) 

byDefault, if you have only one section in the TableView, then you can set the value of the section to 0.

Answer 4

 let indexPathRow:Int = 0 let indexPosition = IndexPath(row: indexPathRow, section: 0) tableView.reloadRows(at: [indexPosition], with: .none) 

Answer 5

Swift 4

 let indexPathRow:Int = 0 let indexPosition = IndexPath(row: indexPathRow, section: 0) tableView.reloadRows(at: [indexPosition], with: .none) 

Answer 6

What about:

 self.tableView.reloadRowsAtIndexPaths([NSIndexPath(rowNumber)], withRowAnimation: UITableViewRowAnimation.Top) 

Answer 7

In addition, if you have partitions to view the table, you should not try to find all the rows that you want to update, you should use reload sections. This is a simpler and more balanced process:

 yourTableView.reloadSections(IndexSet, with: UITableViewRowAnimation) 

Answer 8

Swift 4.1

use it when deleting a row using selectedTag of row.

 self.tableView.beginUpdates() self.yourArray.remove(at: self.selectedTag) print(self.allGroups) let indexPath = NSIndexPath.init(row: self.selectedTag, section: 0) self.tableView.deleteRows(at: [indexPath as IndexPath], with: .automatic) self.tableView.endUpdates() self.tableView.reloadRows(at: self.tableView.indexPathsForVisibleRows!, with: .automatic) 

Answer 9

I understand that this question is for Swift, but here is Xamarin equivalent code for the accepted answer if anyone is interested.

 var indexPath = NSIndexPath.FromRowSection(rowIndex, 0); tableView.ReloadRows(new NSIndexPath[] { indexPath }, UITableViewRowAnimation.Top); 

Answer 10

SWIFT 4.2

  func reloadYourRows(name: <anyname>) { let row = <your array name>.index(of: <name passing in>) let reloadPath = IndexPath(row: row!, section: 0) tableView.reloadRows(at: [reloadPath], with: .middle) }