Question

Is this possible? For example I have:

pin.image == [UIImage imageNamed: @"Bpin_map"]

but I need to check for Apin_map and more. Is there a way to compare pin.image to a UIImage with a name that ends in _map?

Answer 1

I am going to assume you understand already the ins and outs of comparing strings (filenames) and the real problem here is that UIImage does not have a property to contain the filename from which the data was loaded… so:

use objc_setAssociatedObject() to store the name like this:

objc_setAssociatedObject(pin.image,"imageName",@"Bpin_map",OBJC_ASSOCIATION_RETAIN_NONATOMIC);

then you can retrieve the name again using

NSString* filename = (NSString*)objc_getAssociatedObject(pin.image,"imageName");

if([filename hasSuffix:@"_map"])
{
 // success!
}