Heya, I've added a class object to the nib file. All connections are made. But for some reason, the object is deallocated as soon as it's created. Here's the code: control.h: #import <Foundation/Foundation.h> @interface control : NSObject { IBOutlet UILabel *PlayerScore; } -(IBAction) addPoint: sender; -(void) dealloc; @end c...
The code for this question is too long to be of any use. But I'm pretty sure my problem has to do with releasing a class. I have a helper class, ConnectionHelper.h/.m, that handles a NSURLConnection for me. Basically, I give it the URL I want and it returns the data (it happens to do a quick json parse on it too). It has a delegate w...
I think i have an UIImage that has a higher retain count than it should have and i am probably leaking memory. I use this image as a thumbnail, to set a custom background to a uibutton. So the uibutton is holding a reference to it and so do i. But instead of 2, the retainCount is 3. Do i have to create a custom UIImage derived class and ...
Hi, I am writing the code using cocos2d. I want to release all the memory I allocated. I have done it in dealloc method in the following way. All the objects I released are declared in interface file and property (assign) was set and are synthesized in implementation file. I used alloc method to create them like self.PlayerA = [[CCSpri...
Hi I know this has been discussed here several times but I still can't get an answer to my problem. I've got a navigation controller app with a hierarchy of several view controllers. I had it crashing a lot until I learnt about the viewDidUnload method which (if I understood right) is triggered when a didRecieveMemoryWorning is being cal...
Hi, I recently changed my app to use a UINavigationController, I was using a UINavigationBar before, with cascade subView adding, which was a bit tenuous. I'm facing a problem of memory usage. Leaks tool doesn't show any leak, but ViewControllers I create and add to the UINavigationController never seem to be released. So memory usage ...
Let's say I have an object named "foo" with another object named "bar" as property. When "foo" deallocates, will it automatically remove all references to "bar" so that "bar" deallocates as well? or will "foo" deallocate and "bar" float in memory somewhere? even if all of "bar"'s references are defined in "foo". thanks in advance. ...
Hi, I'm using an array of ASIHTTPRequest wrappers (AsyncImageLoader) to download images for cells in a UITableView. I'm having problems handling ASIHTTPRequests lifetime. If I release them, I end up having a EXC_BAD_ACCESS if I keep scrolling up and down while they try to load images. Here's what my wrapper looks like. self.request ha...
I inherited an iPhone app at work and I'm new to Objective-C so I don't have my bearings just yet. I encountered code similar to this: - (void) dealloc { [[StaticObject sharedObject] showSomeDialog]; [super dealloc]; } I know this is frowned upon in other languages. My spider sense is going crazy looking at that code. Is th...
hi all! I wish best understand the difference between dealloc and release function.... example... I have my class derived from NSObject calle MyClass in my code, to use this class, I create an instance of MyClass.. // initialization MyClass* test = [[MyClass alloc] init]; //do some stuff.... // release?? [ test release]; is right?? ...
I'm at a loss! It's one of those pesky bugs that happens only under specific conditions, yet I cannot link the conditions and the results directly. My app has a paged UIScrollView where each page's view comes from a MyViewController, a subclass of UITableViewController. To minimize memory usage I unload those controllers that are not c...
I'm having the following problem. When I pop the view controller pushing the back button, the dealloc method is not getting called. Here is the code I'm using: NSLog(@"coleccionVista retain count0: %i",[coleccionVista retainCount]); coleccionVista = [[coleccionViewController alloc] init]; NSString *nombreColeccion = [colecciones objec...
Hi, I have a Class which I have created as an NSObject. This class has a number of properties of different types and methods etc. When I instantiate this class in my App (say in the main View Controller) I immediately send it a release call when I am finished using it. ie: MyObject *myObject = [[MyObject alloc] initWithParameters:pa...
I've created an NSOperation in the queue like so: ImageLoadingOperation *operation = [[ImageLoadingOperation alloc] initWithImageURL:url target:self action:@selector(didFinishLoadingImageWithResult:)]; [operationQueue addOperation:operation]; [operation release]; And this works fine but if the view gets popped before the operation fin...
I am creating a loading screen UIView which is added to a subview while some XML is parsed from some URL. Once the XML is returned, the loading screen is removed from its superview. The question I have is how should I release this object? In the code below, you'll see that I send removeFromSuperview to the loadingScreen, but I still h...
Let's say i have a navigation controller in my app delegate. Why is it necessary to release it on dealloc method in my appDelegate? When the dealloc method of my appDelegate is called, it means user is exiting the app, so the leak doesn't affect my application. So why would i release anything in dealloc method of my appDelegate? ...
I have a Class with a NSTimer *myTimer; variable. At some point I do: myTimer = [NSTimer scheduledTimerWithTimeInterval:20 target:self selector:@selector(doStuff) userInfo:nil repeats: YES]; further, I have a method: - (void)doStuff { if(myTimer) { //do stuff } } and I stop my timer when the class is released through: ...
Hi, I am creating an animation in a scene(the current level) and so in the init section I add the required frames into the spriteFrameCache. [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"OchoHit.plist"]; CCSpriteSheet *spriteSheet1 = [CCSpriteSheet spriteSheetWithFile:@"OchoHit.png"]; [self addChild:sprit...
I am working on an interactive children's book for the iPad that has a "read to me" option. For each page (that has an index), theres an audio clip that produces the "read to me" feature. The feature works well, except for the fact that when I turn the page, the previous pages audio still plays, even when the new audio starts, here's my...
Is it good practice for an object in Objective-C to commit suicide? That is, for an object to declare [self dealloc] where -dealloc permits an orderly wind down as usual? What are the principal risks? As it happens I have a specific example, a custom timer object that extends NSObject and comprises an NSTimer instance and an NSUInteger ...