Resize UITableViewCell size without fluctuation and jerk.


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

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