无法设置文字标签单元格

Question

Here is my code

@property (nonatomic,retain) NSMutableArray *category;

@synthesize category;

NSString * path = [[NSBundle mainBundle] pathForResource:@"categorylist" ofType:@"txt"];
    NSString * content = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:NULL];
    self.category = [NSMutableArray arrayWithArray:[content componentsSeparatedByString:@"\n"]];
    [content release];

and It has error here

cell.textLabel.text = [category objectAtIndex:[indexPath row]];
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    return cell;

I'm newbie. so Please help me find out the solution please.

vvv From many help This is finalize solution code.

@property (nonatomic,retain) NSMutableArray *category;

@synthesize category;

NSString * path = [[NSBundle mainBundle] pathForResource:@"categorylist" ofType:@"txt"];
    NSString * content = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:NULL];
    self.category = [NSMutableArray arrayWithArray:[content componentsSeparatedByString:@"\n"]];

and here

cell.textLabel.text = [NSString stringWithFormat:@"%@",[self.category objectAtIndex:indexPath.row]];

Answer 1

don't release content. If you didn't use alloc , new , retain or copy you are not allowed to release.

You should read the Memory Management Programming Guide again

Answer 2

From your code everything is correct ..may be bug behind the following thing

1.Check your category array wethere it contain value by printing

NSLog(@"%@", category);

2.Did u inform ur array count to numberOfRowsInSection function

3.Did u release category array's memory in dealloc

4.Did U set datasource for tableview???

Best Regards