Cell animation stop fraction must be greater than start fraction

Question

I m using Animation in table view cell...Animation is working fine when cell is totally visible.if any cell is partially visible at that time due to Animation my app is gett

Answer 1

I experienced the same problem - exception 'Cell animation stop fraction must be greater than start fraction' in [[self tableView] endUpdates]; I solved it by catching the exception and making the endUpdates second time.

[[self tableView] beginUpdates];
@try
{
    [[self tableView] endUpdates];
}
@catch (NSException* exception)
{
    [[self tableView] endUpdates];
}

Answer 2

I was getting the same error and crash whenever I would scroll to the bottom of the tableview and try to delete cells and insert sections my solution was to scroll the tableview back to the top before calling [tableview beginsUpdates] using the tableviews content offset. With this solution I didn't have to change my section header or footer at all.

[self.tableView setContentOffset:CGPointZero animated:NO];

Answer 3

I had the same problem after the ios 7 update : crash appeared during a "deleteRowsAtIndexPaths" for expand/collapse stuff in my table view.

Surprisingly, I have solved this issue by using heightForHeaderInsection instead of heightForFooterInSection.

-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    return 1; // it was 0 before the fix
}


-(CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section{
    return 0; // it was 1 before the fix
}

This issue has been reported (https://devforums.apple.com/message/795349).

Answer 4

I experienced the same crash when trying to use a dummy footer to remove potential "empty" table view cells.

The solution was to get rid of

tableView:viewForFooterInSection:
tableView:heightForFooterInSection:

and replace them with the following, in viewDidLoad :

tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];

Answer 5

You can use header of next section my same answer is here

• create empty section
• use its header instead of footer

https://stackoverflow.com/a/12297703/788798

Answer 6

I solved this bug by calling reloadData() for last section:

func expandSectionPressed(sender: UIButton) {
    let object = items[sender.tag]
    object.expanded = !object.expanded
    sender.selected = object.expanded
    var indexPaths = [NSIndexPath]()
    for i in 0..<7 {
        indexPaths.append(NSIndexPath(forRow: i, inSection: sender.tag))
    }
    if object.expanded {
        tableView.insertRowsAtIndexPaths(indexPaths, withRowAnimation: .Fade)
    } else {
        // strange crash when deleting rows from the last section //
        if sender.tag < numberOfSectionsInTableView(tableView) - 1 {
            tableView.deleteRowsAtIndexPaths(indexPaths, withRowAnimation: .Fade)
        } else {
            tableView.reloadData()
        }
    }
}