UITableView crashes when scroll down - objective-c

Question

I know there's a lot of questions about this topic but I have not be able to solve my problem...
Well, I have detected the problem, it's the contactsArray that's global. If I comment that lines, the table works fine.
The code is this:
#interface ContactsView : UIViewController <UITableViewDelegate, UITableViewDataSource>{
IBOutlet UITableView *table;
NSMutableArray * contactsArray;
}
#property (nonatomic, retain) NSMutableArray *contactsArray;
#property (nonatomic, retain) IBOutlet UITableView *table;
In viewDidLoad I do:
contactsArray = [[NSMutableArray alloc] init];
And here the implementation of each cell:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ContactsCell";
ContactsCell *cell = (ContactsCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil){
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"ContactsCell" owner:self options:nil];
for(id currentObject in topLevelObjects){
if([currentObject isKindOfClass:[UITableViewCell class]]){
cell = (ContactsCell *) currentObject;
break;
}
}
}
// Configure the cell...
Person *persona = [[Person alloc] init];
persona=[contactsArray objectAtIndex:indexPath.row];
[cell setCellNames:[persona name]];
[cell setCellStates:#"En Donosti"];
[persona release];
return cell;
}
If I comment the persona=[contactsArray objectAtIndex:indexPath.row]; and [cell setCellNames:[persona name]];
So, I'm pretty sure that the problem is with contactsArray
Any idea why is it crashing?
Thanks!

Answer 1

You must not release persona object as you just get it from array. Also the Person *persona = [[Person alloc] init]; has no effect as you immediately overwrite object you create with object from array. Fixed code should look like:
Person *persona = [contactsArray objectAtIndex:indexPath.row];
[cell setCellNames:[persona name]];
[cell setCellStates:#"En Donosti"];
return cell;