I have a view on which I've set the layerOpacity to 1.
theView.layer.shadowOpacity = 1.0;
This looks fine when the view is farther down the screen. When I move this view up to be flush with another view that has a shadow, they don't look good. Is there a way I can animate the shadowOpacity
on my layer to be 0? I tried using an animation block but it seems as if this property is not animatable.
EDIT: Request for code that doesn't work:
[UIView animateWithDuration:1.0 animations:^{
splitView2.layer.shadowOpacity = 0;}
completion:NULL];
This will work properly:
#import <QuartzCore/CAAnimation.h>
CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"shadowOpacity"];
anim.fromValue = [NSNumber numberWithFloat:1.0];
anim.toValue = [NSNumber numberWithFloat:0.0];
anim.duration = 1.0;
[vv.layer addAnimation:anim forKey:@"shadowOpacity"];
vv.layer.shadowOpacity = 0.0;
For Swift 3.0:
let animation = CABasicAnimation(keyPath: "shadowOpacity")
animation.fromValue = layer.shadowOpacity
animation.toValue = 0.0
animation.duration = 1.0
view.layer.add(animation, forKey: animation.keyPath)
view.layer.shadowOpacity = 0.0