Question

I’ve been reading up a lot about Gesture Recognizers on SO – and have managed to write a working code which when a long-press is recognised on an UIImage, an action sheet appears:

{ ...
 UILongPressGestureRecognizer *longPressWall = [[[UILongPressGestureRecognizer alloc]
                                                               initWithTarget:self     action:@selector(deleteImage:)] autorelease];
                     longPressWall.minimumPressDuration = 0.4;
                     l.userInteractionEnabled=YES;
                     [l addGestureRecognizer:longPressWall];
... }


-(void)deleteImage:(UILongPressGestureRecognizer*)sender { 
    if(UIGestureRecognizerStateBegan == sender.state) {
        UIActionSheet *as = [[UIActionSheet alloc] initWithTitle:@"" delegate:self cancelButtonTitle:@"Close" destructiveButtonTitle:@"Delete Screenshot" otherButtonTitles: nil];
        [as showInView:masterView];
        [as release];
    }
}

So, sending information to the Selector deleteImage: is a little tricky in this situation.
I want to send a HTTP request to a server when deleteImage is called, so I need some information from the view.

Is there anyway to store information into the UIImageView and retrieve it from sender.view.myinfo (for example)?

Answer 1

The obvious way is to use the tag property. If you need more info you can always subclass the UIImageView and add an extra property.