Objective C - Lost with retain cycles - ios

Question

upon dismissing my VC, I noticed I am not releasing everything from memory. I'm very lost as to how I would go about finding my retain cycle. I am using an NSTimer and NSNotificationCenter, but I make sure to invalidate and removeObservers before exiting, and I made sure of using a weak delegate.
Where else could my retain cycles be occurring? In animation blocks? Like this?
[UIView animateWithDuration:.1 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.setListTableViewVertConst.constant = 0;
self.setListTableViewHeightConst.constant = 264;
} completion:^(BOOL finished) {
}];
When using GCD I make sure to use weakSelf.
__weak typeof(self) weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf.remotePasswordTextField resignFirstResponder];
});
Thanks for any help.
EDIT:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
//Send the room code to be displayed on the respective view controllers.
if ([segue.identifier isEqualToString:#"toSetListRoomVC"]) {
SetListRoomViewController *setListVC = segue.destinationViewController;
setListVC.roomCode = self.roomCodeTextField.text;
}
}
viewWIllApear
[super viewWillAppear:YES];
self.socket = [[SocketKeeperSingleton sharedInstance]socket];
self.socketID = [[SocketKeeperSingleton sharedInstance]socketID];
NSString *roomCodeAsHost = [[SocketKeeperSingleton sharedInstance]hostRoomCode];
/////////HOST/////////
if ([[SocketKeeperSingleton sharedInstance]isHost]) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveHostSongAddedNotification:)
name:kQueueAdd
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveUserJoinedNotification:)
name:kUserJoined
object:nil];
NSLog(#"User is the host of this room");
self.isHost = YES;
[self viewForNoCurrentArtistAsHost];
self.roomCodeLabel.text = roomCodeAsHost;
if (!self.hostQueue) {
self.hostQueue = [[NSMutableArray alloc]init];
}
if (!self.hostCurrentArtist) {
self.hostCurrentArtist = [[NSMutableDictionary alloc]init];
}
if (!self.player) {
self.player = [[AVPlayer alloc]init];
}
if (!self.timer) {
self.timer = [[NSTimer alloc]init];
}
}
///////NOT HOST///////
else {
// Add a notifcation observer and postNotification name for updating the tracks.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveQueueUpdatedNotification:)
name:kQueueUpdated
object:nil];
//Add a notifcation observer and postNotification name for updating current artist.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveCurrentArtistUpdateNotification:)
name:kCurrentArtistUpdate
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveOnDisconnectNotification:)
name:kOnDisconnect
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(receiveHostDisconnectNotification:)
name:kHostDisconnect
object:nil];
//Add some animations upon load up. Purple glow and tableview animation.
double delay = .4;
[self purpleGlowAnimationFromBottomWithDelay:&delay];
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationBottom];
//Set Current artist, if there is one.
NSDictionary *currentArtist = [[SocketKeeperSingleton sharedInstance]currentArtist];
[self setCurrentArtistFromCurrentArtist:currentArtist];
//Set the current tracks, if there is one.
NSArray *setListTracks = [[SocketKeeperSingleton sharedInstance]setListTracks];
if (setListTracks) {
self.tracks = setListTracks;
}
}
}
tableVIEWs
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (tableView.tag == 1) {
if (self.isHost) {
return [self.hostQueue count];
}
else return [self.tracks count];
}
else return [self.searchTracks count];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

Answer 1

I noticed you are using the word "popOut" in some comments, so I'm going to assume that you are using a navigation controller.
If that is the case, your view controller is retained by the nav controller it's been embedded in and is not released. The nav controller needs to hold a reference to your VC (see UINavigationController.viewControllers)so that it can get back to it when you pop out the top/next VC in the hierarchy.
This is expected behavior.

Answer 2

In this code sample you are not using __weak for self
[UIView animateWithDuration:.1 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.setListTableViewVertConst.constant = 0;
self.setListTableViewHeightConst.constant = 264;
} completion:^(BOOL finished) {
}];
However, at a glance this does not seem to be creating a retain cycle. The code you posted doesn't seem to have any, so it's probably somewhere else. Are you sure you have retain cycles?
Anyway, try instrumenting you app. It might help.