所以我有UIView
一个原型UITableViewCell
。在该视图的awakeFromNib
方法中,我有以下代码来制作阴影
CALayer *layer = self.layer;
layer.cornerRadius = 5.0f;
// Makes shadow for each cell in all and nearby table views.
CGSize size = self.bounds.size;
CGFloat curlFactor = 15.0f;
CGFloat shadowDepth = 5.0f;
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(0.0f, 0.0f)];
[path addLineToPoint:CGPointMake(size.width, 0.0f)];
[path addLineToPoint:CGPointMake(size.width, size.height + shadowDepth)];
[path addCurveToPoint:CGPointMake(0.0f, size.height + shadowDepth)
controlPoint1:CGPointMake(size.width - curlFactor, size.height + shadowDepth - curlFactor)
controlPoint2:CGPointMake(curlFactor, size.height + shadowDepth - curlFactor)];
self.layer.shadowColor = [UIColor blackColor].CGColor;
self.layer.shadowOpacity = 0.3f;
self.layer.shadowOffset = CGSizeMake(2.0f, 7.0f);
self.layer.shadowRadius = 2.0f;
self.layer.masksToBounds = NO;
self.layer.shadowPath = path.CGPath; //Sets a path for the shadow. Greatly enhances performance.
问题是阴影只出现在某些单元格上,而不是全部,而且有时似乎是随机的。我试着把代码放进去viewWillAppear
,viewDidAppear
但它也没有在那里一起工作。有没有人知道可能导致这种情况的原因?