[iPhone] animationImages memory problem, better suggestion?

Question

I have a view that I want to display some animation on. That view has an ImageView object that loads an array of PNG images into it's animationImages property. I load the images in the initWithNibName method. I want the animation to loop until the view disappears.
ivAnimation = [[UIImageView alloc] initWithFrame:self.view.frame];
ivAnimation.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:@"01.png"],
[UIImage imageNamed:@"02.png"],
[UIImage imageNamed:@"03.png"],
[UIImage imageNamed:@"40.png"], nil];
ivAnimation.animationDuration = 1.5;
ivAnimation.animationRepeatCount = 0;
[ivAnimation stopAnimating];
[self.view addSubview:ivAnimation];
I am getting memory warnings when the animation is playing. Eventually the application crashes. I don't see where I could be releasing anything to free up memory. All of the images are about 8KB. When I comment that code out everything runs smoothly. It makes me wonder if this is not the proper way to be doing animations. Since animated gif/png don't animate in an UIImage, how do you simulate that animation?

Answer 1

{quote}
SexyAndOhSoWitty wrote:
I created a blank View Project, and ONLY copied over the UIImageView setup and animation. It STILL throws memory warnings with 40, 8KB each, transparent PNG images loaded into the animationImages property.
{quote}
So here's the code:
.h
#import <UIKit/UIKit.h>
@interface AnimationTestViewController : UIViewController {
UIImageView *ivAnimation;
NSArray *animationBeginning;
@property (nonatomic, retain) UIImageView *ivAnimation;
@property (nonatomic, retain) NSArray *animationBeginning;
@end
.m
#import "AnimationTestViewController.h"
@implementation AnimationTestViewController
@synthesize ivAnimation, animationBeginning;
- (void)viewDidLoad {
NSLog( @"loadGame" );
// Initialization code
ivAnimation = [[UIImageView alloc] initWithFrame:self.view.frame];
animationBeginning = [NSArray arrayWithObjects:
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image01" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image02" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image03" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image04" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image05" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image06" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image07" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image08" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image09" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image10" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image11" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image12" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image13" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image14" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image15" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image16" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image17" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image18" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image19" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image20" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image21" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image22" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image23" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image24" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image25" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image26" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image27" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image28" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image29" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image30" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image31" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image32" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image33" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image34" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image35" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image36" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image37" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image38" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image39" ofType:@"png"]],
[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"image40" ofType:@"png"]], nil];
ivAnimation.animationImages = animationBeginning;
ivAnimation.animationDuration = 2.0;
ivAnimation.animationRepeatCount = 0;
[ivAnimation stopAnimating];
[self.view addSubview:ivAnimation];
[animationBeginning release];
animationBeginning = nil;
- (void)viewWillAppear:(BOOL)animated {
[ivAnimation startAnimating];
- (void)viewWillDisappear:(BOOL)animated {
[ivAnimation stopAnimating];
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return YES;
- (void)didReceiveMemoryWarning {
NSLog( @"didReceiveMemoryWarning..." );
if( [ivAnimation isAnimating] ){
[ivAnimation stopAnimating];
// If I do a release on animationImages there is EXCBADACCESS (I assume
// because I released the array earlier). This should minus that last retain.
ivAnimation.animationImages = nil;
[super didReceiveMemoryWarning];
- (void)dealloc {
[ivAnimation release];
[animationBeginning release];
[super dealloc];
@end
Same results of course