Iphone 带阴影的圆形视图?
因此,使用此链接: 此链接: 我遇到了这样的实施:Iphone 带阴影的圆形视图?,iphone,objective-c,cocoa-touch,uikit,core-graphics,Iphone,Objective C,Cocoa Touch,Uikit,Core Graphics,因此,使用此链接: 此链接: 我遇到了这样的实施: - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSaveGState(context); CGContextSetShadow(context, CGSizeMake(-15.0f, 20.0f), 5.0f); CGContextSetLineWidth(context, strokeWidt
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSaveGState(context);
CGContextSetShadow(context, CGSizeMake(-15.0f, 20.0f), 5.0f);
CGContextSetLineWidth(context, strokeWidth);
CGContextSetStrokeColorWithColor(context, self.strokeColor.CGColor);
CGContextSetFillColorWithColor(context, self.rectColor.CGColor);
CGRect rrect = self.bounds;
CGFloat radius = cornerRadius;
CGFloat width = CGRectGetWidth(rrect);
CGFloat height = CGRectGetHeight(rrect);
// Make sure corner radius isn't larger than half the shorter side
if (radius > width/2.0)
radius = width/2.0;
if (radius > height/2.0)
radius = height/2.0;
CGFloat minx = CGRectGetMinX(rrect);
CGFloat midx = CGRectGetMidX(rrect);
CGFloat maxx = CGRectGetMaxX(rrect);
CGFloat miny = CGRectGetMinY(rrect);
CGFloat midy = CGRectGetMidY(rrect);
CGFloat maxy = CGRectGetMaxY(rrect);
CGContextMoveToPoint(context, minx, midy);
CGContextAddArcToPoint(context, minx, miny, midx, miny, radius);
CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius);
CGContextAddArcToPoint(context, maxx, maxy, midx, maxy, radius);
CGContextAddArcToPoint(context, minx, maxy, minx, midy, radius);
CGContextClosePath(context);
CGContextDrawPath(context, kCGPathFillStroke);
CGContextRestoreGState(context);
}
但是,在绘制时,阴影会被剪裁到视图的边界。我已尝试设置self.clipsToBounds=NO,但这不会影响问题。使用石英芯绘制阴影如何?比如:
view.layer.shadowColor = [UIColor blackColor].CGColor;
view.layer.shadowOffset = CGSizeMake(0, 0);
view.layer.shadowRadius = 4;
view.layer.shadowOpacity = 1;
view.layer.shadowPath = [UIBezierPath bezierPathWithRoundedRect:view.frame cornerRadius:11].CGPath; // make sure you set that for better performance
一年后,人们回答了一个不同的问题:诀窍是拥有2个UIView。。。(一个用于圆转弯,另一个用于阴影)