Show and Hide a Custom Cell - objective-c

Question

My UITableView has one section, and if all cells are visible there will be a total of 6.
There is only one cell that I would like to be able to show and hide.
Here's an overview:
cell 0 - always shown
cell 1 - always shown
cell 2- always shown
cell 3 - always shown
cell 4 - initially hidden / will show or hide if cell 3 is tapped
cell 5 - always shown
Here's a sample of what I have tried for animating/showing the cell through didSelectRowAtIndexPath. Not sure if I am on the right track, but if someone could take a look and help me see where I have messed up I would greatly appreciate it!
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
if (indexPath.row == 3)
{
if (self.indexPathSelected != indexPath)
{
[tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:self.indexPathSelected.row+1 inSection:self.indexPathSelected.section]].hidden = YES;
[tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationTop];
[tableView beginUpdates];
[[tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:indexPath.row+1 inSection:indexPath.section]] performSelector:#selector(setHidden:) withObject:NO afterDelay:0.25];
self.indexPathSelected = indexPath;
[tableView endUpdates];
return;
}
}
}
So when I tap on cell 3, it just makes the last cell flicker.

Answer 1

By considering, there will be of total 6 rows in tableview and only one section, for this better u make a mutable array to hold all the objects for ur tableview then use insertRowsAtIndexPaths: withRowAnimation: and deleteRowsAtIndexPaths: withRowAnimation: instead of using selector following code gives the example how to hide and show the tableview cell
mutArray = [[NSMutableArray alloc]initWithObjects:#"cell 1",#"cell 2",#"cell 3",#"cell 4",#"cell 6", nil]; //initially ur array contains only 5 objects notice that "cell 5" is not there this will be hidden
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [mutArray count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [self.aTableView dequeueReusableCellWithIdentifier:#"cell"];
if(mutArray.count != 6) //initially only 5 rows are present
{
if(cell == nil)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
cell.textLabel.text = [mutArray objectAtIndex:indexPath.row];
cell.textLabel.backgroundColor = [UIColor clearColor];
return cell;
}
else //for 5th row it must be a custom cell
{
return [mutArray objectAtIndex:indexPath.row];//becz u are already initilised ur custom cell just return it
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
if(indexPath.row == 3)
{
int totalRows = [tableView numberOfRowsInSection:indexPath.section];
[tableView beginUpdates];
if(totalRows == 5)
{
//initilise ur custom cell and add it to datasource array
CustomCell *customCell = [[CustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"customCell"];
customCell.textLabel.text = #"cell 5";
[mutArray insertObject:customCell atIndex:4];
[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForItem:indexPath.row + 1 inSection:indexPath.section]] withRowAnimation:UITableViewRowAnimationFade];
}
else
{
[mutArray removeObjectAtIndex:5];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForItem:indexPath.row + 1 inSection:indexPath.section]] withRowAnimation:UITableViewRowAnimationFade];
}
[tableView endUpdates];
}
}
if all ur cells are custom then dont need to comepare in -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath method
Hope this helps u :)