iOS add / remove shadow from a view

Question

I do not understand how to remove a shadow that was added to a view. I add to my view in initWithFrame a shadow in this way:

self.layer.borderWidth = 2; self.layer.borderColor = [UIColor clearColor].CGColor; self.backgroundColor = [UIColor greenColor]; [self.layer setCornerRadius:8.0f]; CALayer *layer = self.layer; layer.shadowOffset = CGSizeMake(2, 2); layer.shadowColor = [[UIColor blackColor] CGColor]; layer.cornerRadius = 8.0f; layer.shadowRadius = 3.0f; layer.shadowOpacity = 0.80f; layer.shadowPath = [[UIBezierPath bezierPathWithRect:layer.bounds] CGPath]; 

After in the execution of the app I want to remove the shadow from this view. I've tried using:

layer.hidden = YES; 

or

self.layer.hidden = YES; 

but this hides the view completely, not just the added shadow.

Is there a way to retrieve the added shadow from a view and then hide it? Thanks!

Answer 1

I guess you could use the shadowOpacity property of your CALayer.

So this should work:

self.layer.shadowOpacity = 0; 

See the CALayer's shadowOpacity documentation page

And to show your shadow use:

self.layer.shadowOpacity = 1.0;