how to update a uitableview cell without reloadRows and reloadData swift

Question

I need to update tableview cell without reloadRows and reloadData method in swift. Is It possible?

It would be easier to answer if you told us _why_ you don't want to use `reloadRows` or `reloadData`? — Eimantas, Jul 11 '18 at 09:27
@Eimantas I needed to update a only a particular cell and I am using my customized method set the height to the tableview based on rating given to a user. But if I give rating to single user other cells are getting impacted and same with reload rows — Rakesh, Jul 11 '18 at 09:32
https://stackoverflow.com/questions/51265234/can-we-resize-uitableviewcell-without-reloading-it — Mahendra Y, Jul 11 '18 at 09:39

score 2 · Answer 1 · answered Jul 11 '18 at 09:29

You can use tableview.indexPathsForVisibleRows if you wanna just update the ones on the screen and the others will be updated through cellForRow / willDisplayCell

Then you would traditionally do something like

    tableview.indexPathsForVisibleRows.forEach {
        if let cell = tableview.cellForRow(at: $0) as? MyCell {
            cell.configure()
        }
    }

score 1 · Answer 2 · edited Jan 22 '19 at 13:51

1

Try this piece of code:

UIView.setAnimationsEnabled(false)    
self.yourTableView.beginUpdates()                 
self.yourTableView.reloadSections(NSIndexSet(index:indexToBeReload) as IndexSet, with: UITableViewRowAnimation.none)   
self.yourTableView.endUpdates()

edited Jan 22 '19 at 13:51

Andronicus

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answered Jan 22 '19 at 12:44

Muthukumar V

31
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score 0 · Answer 3 · answered Jul 11 '18 at 09:38

If You want to update cell content size, You should use beginUpdates() and endUpdates() to change content size of UITableViewCell, in this case heightForRowAtindexPath will called for each cell in tableView and update height of TableviewCell. for iOS > 10, You should prefer performBatchUpdates(_:completion:) instead of beginUpdates() and endUpdates().

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        self.tableView.beginUpdates()
        self.tableView.endUpdates()
}

For more information

https://appengineer.in/2018/07/11/resize-uitableviewcell-size-without-fluctuation-and-jerk/

https://developer.apple.com/documentation/uikit/uitableview/1614908-beginupdates

how to update a uitableview cell without reloadRows and reloadData swift

3 Answers3