1 CALayer *layer = [[self.view.layer sublayers] objectAtIndex:0];
layer.shadowPath = (layer.shadowPath) ? nil : [self bezierPathWithCurvedShadowForRect:layer.bounds2 ].CGPath;
1 static const CGFloat offset = 10.0;
2 static const CGFloat curve = 5.0;
3 - (UIBezierPath*)bezierPathWithCurvedShadowForRect:(CGRect)rect {
4
5 UIBezierPath *path = [UIBezierPath bezierPath];
6
7 CGPoint topLeft = rect.origin;
8 CGPoint bottomLeft = CGPointMake(0.0, CGRectGetHeight(rect) + offset);
9 CGPoint bottomMiddle = CGPointMake(CGRectGetWidth(rect)/2, CGRectGetHeight(rect) - curve);
10 CGPoint bottomRight = CGPointMake(CGRectGetWidth(rect), CGRectGetHeight(rect) + offset);
11 CGPoint topRight = CGPointMake(CGRectGetWidth(rect), 0.0);
12
13 [path moveToPoint:topLeft];
14 [path addLineToPoint:bottomLeft];
15 [path addQuadCurveToPoint:bottomRight controlPoint:bottomMiddle];
16 [path addLineToPoint:topRight];
17 [path addLineToPoint:topLeft];
18 [path closePath];
19
20 return path;
21 }