reload uitableview with new data caused flickering

Question

I added an infinite scrolling feature and realized that whenever I reload the uitableview, the view flickers..I am not sure how to fix the flickering at this point. Please h

Answer 1

y you are using deleteRowsAtIndex? If you reload table all table delegate methods are called. I think it is taking time to delete all rows and then again reload. Just use reload method and try.

Answer 2

Below code worked for me like a charm!

Objective-C

[UIView performWithoutAnimation:^{
   [self.tableview reloadData];
   [self.tableview beginUpdates];
   [self.tableview endUpdates];
}];

Swift 4

UIView.performWithoutAnimation {
    self.tableView.reloadData()
    self.tableView.beginUpdates()
    self.tableView.endUpdates()
}

Answer 3

Just in case all other answers do not solve your problem, I post my solution.

If you use estimated height estimatedSectionHeaderHeight or estimatedRowHeight or -(CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath, and with dynamic row count for each section (e.g. expandable two level tableView)

you should stop using this and implement -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath to return the correct height.