Simple Animation in Cocoa Objective-C - cocoa

Question

I have written a simple animation for an iOS game and I am trying to convert it for Mac OS.
Here is my code for iOS
NSMutableArray *imgArr = [[[NSMutableArray alloc] init] autorelease];
for(int i = 1; i < 6 + 1; i++) {
[imgArr addObject: [UIImage imageNamed:[NSString stringWithFormat:#"%#%d.png", filePrefix, i]]];
}
UIImageView * animation = [[UIImageView alloc] initWithFrame:rect];
animation.animationImages = imgArr;
animation.animationRepeatCount = 1;
[animation startAnimating];
[self.view addSubview:animation];
As for cocoa, this part gives errors.. How can I fix this?
//animation.animationImages = imgArr;
//animation.animationRepeatCount = 1;
//[animation startAnimating];
New code with timer
for(int i = 0; i < 6; i++)
[NSTimer scheduledTimerWithTimeInterval:1
target:self
selector:#selector(anim)
userInfo:nil
repeats:NO];
- (void)anim {
++num;
NSImageView *animation = [[NSImageView alloc] initWithFrame:NSMakeRect(shipPosition.x, shipPosition.y, shipSize.width, shipSize.height)];
[animation setImage: [NSImage imageNamed:[NSString stringWithFormat:#"explosprite%d.png", num]] ];
[objectView addSubview:animation];
[animation release];
}

Answer 1

UIImageView does not exist in Cocoa at all. Cocoa does not really have support for sprite animation like you're trying to do here. The most common way AFAIK is just to set an NSTimer and update the image appropriately when the timer fires.
You could also create a custom CALayer subclass that handles animating images. I'm not sure that's necessarily easier, but it's an option.