Question

I have this code:

imageNumber++;
UIImage *image = [[UIImage alloc]init];
            image = [UIImage imageNamed:[NSString stringWithFormat:@"l%d_s%d.png", currentSet, imageNumber]];
            [imageToColor setImage:image]; //<-- here it crash 
            [image release];

so, after a few minuted my app crash with this message

[UIImage isKindOfClass:]: message sent to deallocated instance

why?? can you help me?

Answer 1

imageNumber++;
UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"l%d_s%d.png", currentSet, imageNumber]];
[imageToColor setImage:image];

The problem with your code is that you allocate a UIImage object on image variable and then without releasing it you set it to another autoreleased object. [UIImage imageNamed:] returns an autoreleased UIImage object.