Question

Possible Duplicate:
UIImageView – How to get the file name of the image assigned?

I can’t figure out how to find what image file an image view is displaying or if it is being displayed at all. For example lets say I have an image view. By the tag of the image view I want to be able to determine what file (the name of the file) is being displayed through the image view?

I can’t seem to find an answer to what I thing is a very simple question…

I know I can change the image of an imageview like this…

[(UIImageView*)[self.view viewWithTag:ImageViewTag] setImage:[UIImage imageNamed:imageTitle]];

But how can I see what image an image view is already displaying?

Answer 1

As the link in Ben’s comment explains, there is no native way to do this. However, you could easily create this behavior yourself.

You can subclass UIImageView and add a new instance variable:

NSString* imageFileName;

Then you could override setImage, first setting imageFileName to the filename of the image you’re setting, and then calling [super setImage:imageFileName]. Something like this:

-(void) setImage:(NSString*)fileName
{
   imageFileName = fileName;
   [super setImage:fileName];
}

Just because it can’t be done natively doesn’t mean it isn’t possible 🙂