TechQA.

Array used for animation not releasing images. Memory Pressure

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I have 5 arrays which I am using to load and play 5 sets of images to form 5 different animations.

I am having massive memory issues. Up to 500mb. The images only total around 15mb in size outside the app when I check their size in finder.

I ran the memory instrument whilst my app was running;

![MEMORY Status after the 5 arrays have been loaded.][1]

This image shows the memory after the five arrays have been loaded. It seems pretty obvious that it is retaining the images after the arrays have ran? Or at least I think that is the problem.

This is the code I have used for each array;

//Play Button 1 Animation

NSMutableArray *play1Frames = [[NSMutableArray alloc] initWithObjects:
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0000"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0001"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0002"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0003"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0004"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0005"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0006"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0007"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0008"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0009"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0010"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0011"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0012"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0013"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0014"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0015"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0016"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0017"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0018"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0019"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0020"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0021"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0022"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0023"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0024"] ofType:@"png"]],
               [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"play_button0025"] ofType:@"png"]],
               nil];
play1Image.animationImages = play1Frames;
play1Image.animationDuration = 3;
play1Image.animationRepeatCount = 1;
play1Frames = nil;

I want to use this code for animation, I have tried this code;

UIImage* animatedImage = [UIImage animatedImageNamed:@"Anim" duration:20];

But it does not give me the functionality I want, also the memory issue was still present even with this code ^

Does anyone have any idea what the problem could be, or if I have correctly identified the problem, can anyone help me fix it please?

Thank you.

ios arrays memory instruments pressure
Original Q&A
2

There are 2 answers

0
Suraj K Thomas On

I think you should try this: copy images to the bundle like this:

NSMutableArray *images=[[NSMutableArray   
alloc]initwithobjects:@"play_button0000.png",@"xxx.png",,,nil];

And write your animation code. The problem seems to be where you are adding the images to the array.

Just give a try.

10
Dhaval Bhadania On

try this one,it's working proper and not getting any memory issue also:

// Load images
NSArray *imageNames = @[@"play_button0000.png", @"play_button0001.png", @"play_button0002.png", @"play_button0003.png",@"play_button0004.png", @"play_button0005.png", @"play_button0006.png", @"play_button0007.png",@"play_button0008.png", @"play_button0009.png", @"play_button0010.png", @"play_button0011.png",@"play_button0012.png", @"play_button0013.png", @"play_button0014.png",
                        @"play_button0015.png",@"play_button0016.png", @"play_button0017.png", @"play_button0018.png", @"play_button0019.png",@"play_button0020.png", @"play_button0021.png", @"play_button0022.png", @"play_button0023.png",@"play_button0024.png",
                        @"play_button0025.png"];
NSMutableArray *images = [[NSMutableArray alloc] init];
for (int i = 0; i < imageNames.count; i++) {
    [images addObject:[UIImage imageNamed:[imageNames objectAtIndex:i]]];

}
 // Normal Animation
animationImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320,480)];
animationImageView.animationImages = images;
animationImageView.animationRepeatCount=1;
animationImageView.animationDuration = 3;
[self.view addSubview:animationImageView];
[self.view sendSubviewToBack:animationImageView];

may be it will help you.

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