Images can't be inserted into views as subviews. UIImageViews, however, can. This is a significant difference.
Are you wanting to check if a specific UIImageView is already added as a subview or if a UIImageView containing a specific image is already added?
If it's the latter you will have to first explain how two images will be considered unique. For example:
Code:
UIImage *image1 = [UIImage imageNamed:@"MyImage.png"];
UIImage *image2 = [UIImage imageNamed:@"MyImage.png"];
if (image1 != image2)
{
NSLog(@"Different images");
}
will log "Different images" despite both being created from the same image: it is up to you to write the code required to track which image came from which file (or which URL or whatever your image source is).
