设置方法:
//设置阴影
_operationView.backgroundColor = [UIColor whiteColor];
_operationView.layer.masksToBounds = NO;
_operationView.layer.shadowColor = [[UIColor blackColor] CGColor];
// _operationView.layer.cornerRadius = 1; // if you like rounded corners
_operationView.layer.shadowOffset = CGSizeMake(0, 5);
_operationView.layer.shadowRadius = 5;
_operationView.layer.shadowOpacity = 0.1;
// _operationView.layer.shadowPath = [UIBezierPath bezierPathWithRect:_operationView.bounds].CGPath;//不要设置这个
如果无效,首先设置
_operationView.clipsToBounds = 0;
_operationView.layer.masksToBounds = NO;
然后是其父视图
self.containerView.clipsToBounds = 0;
self.containerView.layer.masksToBounds = 0;