ios - How to close open cells in uitableview through code (Objective-C) - ios

Question

I am adding a filter function to my app, but every time a filter is applied a previously opened cell does not close when I change the filter, is there a way to implement this?
I am currently using:
[self.tableview reloadData];
to reload the table every time the filter is applied
To open and close:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([self tableView:tableView canCollapseSection:indexPath.section])
{
if (!indexPath.row)
{
// only first row toggles exapand/collapse
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSInteger section = indexPath.section;
BOOL currentlyExpanded = [expandedSections containsIndex:section];
NSInteger rows;
NSMutableArray *tmpArray = [NSMutableArray array];
if (currentlyExpanded)
{
rows = [self tableView:tableView numberOfRowsInSection:section];
[expandedSections removeIndex:section];
}
else
{
[expandedSections addIndex:section];
rows = [self tableView:tableView numberOfRowsInSection:section];
NSLog(#"Section:%d", rows);
}
for (int i=1; i<rows; i++)
{
NSIndexPath *tmpIndexPath = [NSIndexPath indexPathForRow:i
inSection:section];
NSLog(#"INDEX: %#", tmpIndexPath);
[tmpArray addObject:tmpIndexPath];
}
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (currentlyExpanded)
{
dispatch_async(dispatch_get_main_queue(), ^{
[tableView deleteRowsAtIndexPaths:tmpArray
withRowAnimation:UITableViewRowAnimationTop];
});
}
else
{
dispatch_async(dispatch_get_main_queue(), ^{
[tableView insertRowsAtIndexPaths:tmpArray
withRowAnimation:UITableViewRowAnimationTop];
});
}
}
}

Answer 1

Before tableview reloadData clear the expandedSections array.
[expandedSections removeAllIndexes];
[self.tableView reloadData];
expandedSections Array maintains the status of the expand section details.Due to that its not collapse the view. So clear the array before reload the table view.