TableViewCell autorelease error
- by iAm
OK, for two days now i have been trying to solve an error i have inside the cellForRowAtIndex method, let start by saying that i have tracked down the bug to this method, the error is [CFDictionary image] or [Not a Type image] message sent to deallocated instance.
I know about the debug flags, NSZombie, MallocStack, and others, they helped me narrow it down to this method and why, but I do not know how to solve besides a redesign of the app UI.
SO what am i trying to do, well for this block of code, displays a purchase detail, which contains items, the items are in there own section, now when in edit mode, there appears a cell at the bottom of the items section with a label of "Add new Item", and this button will present a modal view of the add item controller, item is added and the view returns to the purchase detail screen, with the just added item in the section just above the "add new Item" cell, the problem happens when i scroll the item section off screen and back into view the app crashes with EXC_BAD_ACCESS, or even if i don't scroll and instead hit the back button on the navBar, still the same error.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = nil;
switch (indexPath.section)
{
case PURCHASE_SECTION:
{
static NSString *cellID = @"GenericCell";
cell = [tableView dequeueReusableCellWithIdentifier:cellID];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2
reuseIdentifier:cellID] autorelease];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
switch (indexPath.row)
{
case CATEGORY_ROW:
cell.textLabel.text = @"Category:";
cell.detailTextLabel.text = [self.purchase.category valueForKey:@"name"];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.editingAccessoryType = UITableViewCellAccessoryDisclosureIndicator;
break;
case TYPE_ROW:
cell.textLabel.text = @"Type:";
cell.detailTextLabel.text = [self.purchase.type valueForKey:@"name"];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.editingAccessoryType = UITableViewCellAccessoryDisclosureIndicator;
break;
case VENDOR_ROW:
cell.textLabel.text = @"Payment:";
cell.detailTextLabel.text = [self.purchase.vendor valueForKey:@"name"];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.editingAccessoryType = UITableViewCellAccessoryDisclosureIndicator;
break;
case NOTES_ROW:
cell.textLabel.text = @"Notes";
cell.editingAccessoryType = UITableViewCellAccessoryNone;
break;
default:
break;
}
break;
}
case ITEMS_SECTION:
{
NSUInteger itemsCount = [items count];
if (indexPath.row < itemsCount)
{
static NSString *itemsCellID = @"ItemsCell";
cell = [tableView dequeueReusableCellWithIdentifier:itemsCellID];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:itemsCellID] autorelease];
cell.accessoryType = UITableViewCellAccessoryNone;
}
singleItem = [self.items objectAtIndex:indexPath.row];
cell.textLabel.text = singleItem.name;
cell.detailTextLabel.text = [singleItem.amount formattedDataDisplay];
cell.imageView.image = [singleItem.image image];
}
else
{
static NSString *AddItemCellID = @"AddItemCell";
cell = [tableView dequeueReusableCellWithIdentifier:AddItemCellID];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:AddItemCellID] autorelease];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
cell.textLabel.text = @"Add Item";
}
break;
}
case LOCATION_SECTION:
{
static NSString *localID = @"LocationCell";
cell = [tableView dequeueReusableCellWithIdentifier:localID];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:localID] autorelease];
cell.accessoryType = UITableViewCellAccessoryNone;
}
cell.textLabel.text = @"Purchase Location";
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.editingAccessoryType = UITableViewCellAccessoryNone;
break;
}
default:
break;
}
return cell;
}
the singleItem is of Modal Type PurchaseItem for core data
now that i know what is causing the error, how do i solve it, I have tried everything that i know and some of what i dont know but still, no progress, please any suggestions as to how to solve this without redesign is my goal, perhaps there is an error i am doing that I cannot see, but if it's the nature of autorelease, than i will redesign.
