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POPossible memory leak
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copied!<p>I know this is a very stupid question to ask but i have a view controller which has a mapview in it and some uibuttons i have done every thng to eliminate all the leaks bt still after 2-3 toggle between two controller app crashs. Below is the code for allocation and dellocation. BTW i dont get any "did recive memoru warning".. Thnx alot</p> <p>.h/</p> <pre><code>@interface MapView : BaseViewController <MKMapViewDelegate,MKAnnotation> { MKMapView *mapView; NSMutableArray *placeName; NSString *mid; UISegmentedControl *segmentedControl; IBOutlet UILabel *numberofbeeps; NSInteger badgenumber; } @property (nonatomic, retain) UILabel *numberofbeeps; @property(nonatomic, retain) NSString *mid; @property (nonatomic, retain) IBOutlet MKMapView *mapView; @property(nonatomic,retain) NSMutableArray *placeName; @property (nonatomic,retain) IBOutlet UISegmentedControl *segmentedControl; -(IBAction)refreshButtonPressed:(id)sender; -(IBAction) segmentedControlIndexChanged; -(IBAction)SignUpButtonPressed:(id)sender; -(IBAction)BackButtonPressed:(id)sender; -(IBAction)AddBeepButtonPressed:(id)sender; -(id)initWithAnnotation:(id ) annotation; -(IBAction)sliderChanged:(id)sender; -(IBAction)MyAccountPageButtonPressed:(id)sender; -(IBAction)MyBeepsButtonPressed:(id)sender; @end </code></pre> <p>.m/</p> <pre><code> -(void)network:(WNetwork*)network didFinishLoadingWithRequest:(NSInteger)pReq data:(NSMutableDictionary*)pData { [self removeLoader]; switch (pReq) { case JBJsonParser: { NSMutableArray *array = [NSMutableArray new]; self.placeName = array; [array release]; self.placeName = pData; badgenumber = [placeName count]; NSString *checkstring = [[AppHelper mDataManager] objectForKey:@"numberofbeepsnearby"]; NSInteger check = [checkstring intValue]; switch (check) { case 0: { self.numberofbeeps.text =[NSString stringWithFormat:@"No beeps found nearby. Why not beep something?"]; NSLog(@"%@",checkstring); } break; case 1: { self.numberofbeeps.text =[NSString stringWithFormat:@"%@ beep found nearby! %d beeps worldwide.",checkstring,badgenumber]; NSLog(@"%@",checkstring); } break; default: { self.numberofbeeps.text =[NSString stringWithFormat:@"%@ beeps found nearby! %d beeps worldwide.",checkstring,badgenumber]; NSLog(@"%@",checkstring); } break; } if ([placeName count]) { for (int i =0; i < [placeName count]; i++) { NSDictionary *dict = [placeName objectAtIndex:i]; CLLocationCoordinate2D coordinatemain; coordinatemain.latitude = [[dict objectForKey:@"Lat"] doubleValue]; coordinatemain.longitude = [[dict objectForKey:@"long"] doubleValue]; DLog(@"id of Beeps %@", mid); NSString *username = [NSString stringWithFormat:@"by %@",[dict objectForKey:@"username"]]; MyAnnotation *ann = [[MyAnnotation alloc] init]; ann.title = [dict objectForKey:@"beep"]; ann.subtitle = username; ann.beepid=[dict objectForKey:@"beepid"]; ann.coordinate = coordinatemain; ann.coordinate.latitude == [[dict objectForKey:@"Lat"] doubleValue]; ann.coordinate.longitude == [[dict objectForKey:@"long"] doubleValue]; [mapView addAnnotation:ann]; [ann release]; } } } break; default: break; } } -(IBAction) segmentedControlIndexChanged{ switch (self.segmentedControl.selectedSegmentIndex) { case 0: { Screen1 *objCont = [[Screen1 alloc] initWithNibName:@"Screen1" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController: objCont animated: YES]; [objCont release]; } break; case 1: { MapView *objCont = [[MapView alloc] initWithNibName:@"MapView" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController: objCont animated: YES]; [objCont release]; } break; default: break; } } #pragma mark - #pragma mark request delegates -(void)makeAccomodationRequest { NSMutableDictionary *paramDic = [[NSMutableDictionary alloc] init]; [self.mWNetowrk makeRequsetWithURL:URL_Showbeepsmap type:JBJsonParser paramDictionary:paramDic delegate:self]; [paramDic autorelease]; } -(BOOL)network:(WNetwork*)network shouldStartForRequest:(NSInteger)pReq { [self addLoaderWithtext:@"Loading"]; return YES; } -(void)network:(WNetwork*)network didFailForRequest:(NSInteger)pReq WithError:(NSString*)error { [AppHelper showAlert:error]; [self removeLoader]; } -(void)initializeView { [self initializeOutlets]; [self makeAccomodationRequest]; } -(void)initializeOutlets { } -(IBAction)BackButtonPressed:(id)sender { Screen1 *objCont = [[Screen1 alloc] initWithNibName:@"Screen1" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController: objCont animated: YES]; [objCont release]; } -(IBAction)refreshButtonPressed:(id)sender { MapView *objCont = [[MapView alloc] initWithNibName:@"MapView" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController: objCont animated: YES]; [objCont release]; } -(IBAction)MyAccountPageButtonPressed:(id)sender { NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"]; { NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"]; if ([sid isEqualToString:@"logged out"]||session==NULL) { AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } else { MyAccountPage *objCont = [[MyAccountPage alloc] initWithNibName:@"MyAccountPage" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } } } -(IBAction)MyBeepsButtonPressed:(id)sender { NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"]; NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"]; //NSString *sessionStr = [session stringValue]; if ([sid isEqualToString:@"logged out"]||session==NULL) { [[AppHelper mDataManager] setValue:@"MyBeeps" forKey:@"appflow"]; AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } else { MyBeeps1 *objCont = [[MyBeeps1 alloc] initWithNibName:@"MyBeeps1" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } } -(IBAction)AddBeepButtonPressed:(id)sender { NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"]; NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"]; if([sid isEqualToString:@"logged out"]||session==NULL) { [[AppHelper mDataManager] setValue:@"Addabeep" forKey:@"appflow"]; AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } else { [[AppHelper mDataManager] setValue:@"Addabeep" forKey:@"appflow"]; Check20M *objCont = [[Check20M alloc] initWithNibName:@"Check20M" bundle:nil]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ; [self presentModalViewController: objCont animated: YES]; [objCont release]; } } #pragma mark - #pragma mark MKMapViewDelegate - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { if (annotation == mapView.userLocation) { // NSLog(@"nil"); return nil; } MKPinAnnotationView *pinView = nil; static NSString *defaultPinID = @"com.invasivecode.pin"; pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID]; if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease]; pinView.pinColor = MKPinAnnotationColorGreen; pinView.frame=CGRectMake(0, 0, 30, 30); pinView.canShowCallout = YES; pinView.animatesDrop = YES; UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; MyAnnotation *temp = (MyAnnotation*)annotation; infoButton.tag = [temp.beepid integerValue]; [infoButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside]; pinView.rightCalloutAccessoryView = infoButton; [defaultPinID release]; return pinView; } -(IBAction)showDetails:(id)sender{ UIButton *button = (UIButton*)sender ; NSLog(@"Annotation Click"); BeepsDetail *objCont = [[BeepsDetail alloc] initWithNibName:@"BeepsDetail" bundle:nil]; objCont.mId = [NSString stringWithFormat:@"%d",button.tag]; objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController: objCont animated: YES]; [objCont release]; } #pragma mark - #pragma mark mapView delegates - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { } return self; } - (void)viewDidLoad { [super viewDidLoad]; mapView.delegate = self; [self initializeView]; mapView.showsUserLocation = YES; [self makeAccomodationRequest]; CLLocation *location = [[AppHelper appDelegate] mLatestLocation]; MKCoordinateRegion region; region.center.latitude = location.coordinate.latitude; region.center.longitude = location.coordinate.longitude; region.span.latitudeDelta = 0.001; // Add a little extra space on the sides region.span.longitudeDelta = 0.001; // Add a little extra space on the sides region = [mapView regionThatFits:region]; [mapView setRegion:region animated:YES]; } // Listen to change in the userLocation - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; self.mapView = nil; self.numberofbeeps =nil; self.mapView = nil; self.segmentedControl = nil; } - (void)dealloc { [mapView release]; // [self.mapView removeFromSuperview]; [placeName release]; //[mid autorelease]; [super dealloc]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc. that aren't in use. } @end </code></pre>

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