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POself.tableView.delegate = self and self.table.dataSource = self memory leak
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  1. POself.tableView.delegate = self and self.table.dataSource = self memory leak
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    copied!<p>I have following codes, which have memory leak on device, could you please kindly help check it? Thanks.</p> <pre><code>@interface NewsListViewController : UIViewController&lt;UITableViewDataSource, UITableViewDelegate&gt; { @private UITableView *tableView; NSFetchedResultsController *fetchedResultsController; ...... } @property (nonatomic, retain, readonly) NSFetchedResultsController *fetchedResultsController; @end @implementation NewsListViewController { ...... - (void)dealloc { [fetchedResultsController release]; fetchedResultsController = nil; tableView.delegate = nil; tableView.dataSource = nil; [tableView release]; tableView = nil; [super dealloc]; } -(void)viewDidLoad { ...... tableView.delegate = self; // **leak here** tableView.dataSource = self; // **leak here** DemoAppDelegate *appDelegate = (DemoAppDelegate *)[UIApplication sharedApplication].delegate; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleSaveNotification:) name:NSManagedObjectContextDidSaveNotification object:appDelegate.managedObjectContext]; </code></pre> <p>[self fetch];</p> <pre><code>} - (void)fetch { </code></pre> <p>NSError *error = nil; BOOL success = [self.fetchedResultsController performFetch:&amp;error]; if (!success) { debugLog(@"Unhandled error performing fetch: %@", [error localizedDescription]); NSAssert1(0, @"Unhandled error performing fetch: %@", [error localizedDescription]); } [tableView reloadData];</p> <pre><code>} - (NSFetchedResultsController *)fetchedResultsController { </code></pre> <p>if (fetchedResultsController == nil) { NSFetchRequest *fetchRequest = [[[NSFetchRequest alloc] init] autorelease];</p> <p>DemoAppDelegate *appDelegate = (DemoAppDelegate *)[UIApplication sharedApplication].delegate; [fetchRequest setEntity:[NSEntityDescription entityForName:@"News" inManagedObjectContext:appDelegate.managedObjectContext]];</p> <p>fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:appDelegate.managedObjectContext sectionNameKeyPath:nil cacheName:@"NewsCache"];</p> <pre><code>} </code></pre> <p>return fetchedResultsController; }</p> <pre><code> - (void)handleSaveNotification:(NSNotification *)aNotification { </code></pre> <p>DemoAppDelegate *appDelegate = (DemoAppDelegate *)[UIApplication sharedApplication].delegate; [appDelegate.managedObjectContext mergeChangesFromContextDidSaveNotification:aNotification]; [self fetch]; }</p> <pre><code> - (UITableViewCell *)tableView:(UITableView *)table cellForRowAtIndexPath:(NSIndexPath *)indexPath { News *news = [fetchedResultsController objectAtIndexPath:indexPath]; // fill cell.label.text according to the news field value } @end </code></pre>
 

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