У меня есть следующие коды с утечкой памяти на устройстве. Не могли бы вы помочь проверить это? Спасибо.
@interface NewsListViewController : UIViewController<UITableViewDataSource, UITableViewDelegate> {
@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];
[самовывоз];
}
- (void)fetch {
NSError * error = nil; BOOL success = [self.fetchedResultsController performFetch: & error]; if (! success) {debugLog (@ "Необработанная ошибка при выполнении выборки:% @", [error localizedDescription]); NSAssert1 (0, @ "Необработанная ошибка при выполнении выборки:% @", [error localizedDescription]); } [tableView reloadData];
}
- (NSFetchedResultsController *)fetchedResultsController {
если (fetchedResultsController == nil) {NSFetchRequest * fetchRequest = [[[NSFetchRequest alloc] init] autorelease];
DemoAppDelegate * appDelegate = (DemoAppDelegate *) [UIApplication sharedApplication] .delegate; [fetchRequest setEntity: [NSEntityDescription entityForName: @ "Новости" inManagedObjectContext: appDelegate.managedObjectContext]];
fetchedResultsController = [[выделение NSFetchedResultsController] initWithFetchRequest: fetchRequest managedObjectContext: appDelegate.managedObjectContext sectionNameKeyPath: nil cacheName: @ "NewsCache"];
}
return fetchedResultsController; }
- (void)handleSaveNotification:(NSNotification *)aNotification {
DemoAppDelegate * appDelegate = (DemoAppDelegate *) [UIApplication sharedApplication] .delegate; [appDelegate.managedObjectContext mergeChangesFromContextDidSaveNotification: aNotification]; [самовывоз]; }
- (UITableViewCell *)tableView:(UITableView *)table cellForRowAtIndexPath:(NSIndexPath *)indexPath {
News *news = [fetchedResultsController objectAtIndexPath:indexPath];
// fill cell.label.text according to the news field value
}
@end
