Moe Moe - 1 year ago 55
iOS Question

Store additional associated infomation in a UIView

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) ?

Thanks!

Answer Source

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.

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