Question

I have a UITableViewController and I set some properties in the viewDidLoadMethod like so:

- (void)viewDidLoad {
    [super viewDidLoad];

    self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self.parentViewController.parentViewController action:@selector(dismissSettings)] autorelease];
    [self setTitle:@"Gabbai Settings"];

    //Set up the table 
    [self.tableView initWithFrame:self.tableView.frame style:UITableViewStyleGrouped];

    [self.tableView setRowHeight:65.0];
    [self.tableView setSeparatorStyle:UITableViewCellSeparatorStyleSingleLineEtched];

    [self.tableView.backgroundView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"%@_settings", kTheme] ofType:@"png"]]]];


}

The app shows a UIScrollViewController and a UIButton. When the button is pressed, the app displays a modal UINavigationController and that UINavigationController contains a UITableViewController.

For some reason, Leaks reports some leakage when I show the UITableViewController. However, if I comment out the four lines after //Set up the table, everything is fine.

When the four lines are uncommented, the Leaks instrument shows the following:

I’m not sure what is going on here, but it’s really annoying. I’ve used the same four lines of code before to customize my UITableViewController and this is a new behavior.

What could be wrong?

Answer 1

As has been pointed out by other answers, your problem is the line:

[self.tableView initWithFrame:self.tableView.frame style:UITableViewStyleGrouped];

It will create a new UITableView object and it will not modify self.tableView which means that line is totally pointless. It only creates the leak you are experiencing. Remove it and you should be fine.