UITableViewCell with dynamic number of UILables - ios

Question

I was trying to implement a tableview like this one
please read the comment to see the link <1>
My implementation is:
1. i create my cell from a nib!
please read the comment to see the link <2>
For testing purpose i hardcode the heading part of the cell, and i create the rest in the code like this ...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
UITableViewCell *myCell = (UITableViewCell*)
[self.tableView dequeueReusableCellWithIdentifier:#"CheckedOutOrderTableCell"];
[[NSBundle mainBundle] loadNibNamed:#"CheckedOutOrderTableCell" owner:self options:NULL];
myCell = nibLoadedTableCell;
UILabel *orderConditionLabel = [[UILabel alloc] initWithFrame:CGRectMake(250, (85+([[bigDictionary objectAtIndex:indexPath.row]count]*35)), 64, 21)];
[orderConditionLabel setText:#"Delivered"];
[orderConditionLabel setFont:[UIFont systemFontOfSize:14]];
orderConditionLabel.textColor = [UIColor darkGrayColor];
orderConditionLabel.backgroundColor = [UIColor clearColor];
for(NSInteger i=0; i<[[bigDictionary objectAtIndex:indexPath.row]count]; i++)
{
UILabel *quantityLabel = [[UILabel alloc] initWithFrame:CGRectMake(15, 85+(i*35), 42, 21)];
UILabel *foodLabel = [[UILabel alloc] initWithFrame:CGRectMake(85, 85+(i*35), 175, 21)];
UILabel *priceLabel = [[UILabel alloc] initWithFrame:CGRectMake(220, 85+(i*35), 60, 21)];
[quantityLabel setFont:[UIFont systemFontOfSize:15]];
[foodLabel setFont:[UIFont systemFontOfSize:15]];
[priceLabel setFont:[UIFont systemFontOfSize:15]];
[quantityLabel setText:[NSString stringWithFormat:#"%#",[[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:#"quantity"]]];
[foodLabel setText:[NSString stringWithFormat:#"%#",[[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:#"item_name"]]];
[priceLabel setText:[NSString stringWithFormat:#"$ %#.00", [[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:#"price"]]];
[self.view addSubview:quantityLabel];
[self.view addSubview:foodLabel];
[self.view addSubview:priceLabel];
quantityLabel = nil;
foodLabel = nil;
priceLabel = nil;
}
[self.view addSubview:orderConditionLabel];
orderConditionLabel = nil;
return myCell;
}
and of course i also rewrite heightForRowAtIndexPath: and i finally got this one...
http://i.stack.imgur.com/cF7Y4.png
everything seems going right :D all the label are dynamic created and the position goes perfect... then i tried to save any other record.... and got crashed :'(
http://i.stack.imgur.com/RAXMF.png
I check the data I fed into those cells using NSLOG and below is the structure of my "bigDictionary"
2012-05-17 12:17:50.330 LazBuy[53187:11903] show structure (
(
{
"item_name" = "\U8292\U679c\U9752\U8336";
price = 30;
quantity = 1;
},
{
"item_name" = "\U6587\U5c71\U6e05\U8336";
price = 20;
quantity = 3;
},
{
"item_name" = "\U8292\U679c\U9752\U8336";
price = 30;
quantity = 3;
}
),
(
{
"item_name" = "\U51cd\U9802\U70cf\U9f8d\U8336";
price = 15;
quantity = 3;
}
)
)
The data are fed properly, I do not know what is going wrong!
Why the label didnt update properly, do I need to release them? But I cant release as ARC do not let me do the release line.

Answer 1

You are adding the labels to self.view? Theses should be on the tableviewcell.
[self.view addSubview:quantityLabel];
[self.view addSubview:foodLabel];
[self.view addSubview:priceLabel];
and
[self.view addSubview:orderConditionLabel];
Also your tableviewcell reuse should look more like this
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *MyIdentifier = #"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"TVCell" owner:self options:nil];
cell = tvCell;
self.tvCell = nil;
}
// Set your labels text
return cell;
}