Ios 如何闭合三角形路径?
我画了这个形状: 这是我的密码:Ios 如何闭合三角形路径?,ios,uibezierpath,cashapelayer,Ios,Uibezierpath,Cashapelayer,我画了这个形状: 这是我的密码: /* build path */ let bottomBezierPath = UIBezierPath() //first thing draw bottom line bottomBezierPath.moveToPoint(CGPointMake(0, TRIANGLE_EDGE)) bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width,TRIANGLE
/* build path */
let bottomBezierPath = UIBezierPath()
//first thing draw bottom line
bottomBezierPath.moveToPoint(CGPointMake(0, TRIANGLE_EDGE))
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width,TRIANGLE_EDGE))
//now draw triangle
bottomBezierPath.moveToPoint(CGPointMake(bottomShapeLayer.frame.size.width,TRIANGLE_EDGE))
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width,0))
bottomBezierPath.moveToPoint(CGPointMake(bottomShapeLayer.frame.size.width,0))
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width - TRIANGLE_EDGE ,TRIANGLE_EDGE))
bottomShapeLayer.path = bottomBezierPath.CGPath
bottomShapeLayer.fillColor = UIColor.redColor().CGColor
bottomShapeLayer.strokeColor = UIColor.redColor().CGColor
但是我需要用红色填充三角形,bottomShapeLayer.fillColor
应该可以,对吗?您正在为三角形创建两条单独的线段。
每次使用moveToPoint()
时,您都在开始一个新的线段。因此,当CAShapeLayer
来填充三角形时,它无法填充,因为它是“不完整的”
对此的修复非常简单,您只需通过删除一个moveToPoint()
调用为三角形创建一条连续路径:
let bottomBezierPath = UIBezierPath()
//first thing draw bottom line
bottomBezierPath.moveToPoint(CGPointMake(0, TRIANGLE_EDGE))
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width,TRIANGLE_EDGE))
//now draw triangle
//bottomBezierPath.moveToPoint(CGPointMake(bottomShapeLayer.frame.size.width,TRIANGLE_EDGE)) // this line is redundant btw, as you're moving to the same point. I've left it in incase you want to start your triangle somewhere else.
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width,0))
bottomBezierPath.addLineToPoint(CGPointMake(bottomShapeLayer.frame.size.width - TRIANGLE_EDGE ,TRIANGLE_EDGE))
还值得注意的是,三角形开头的moveToPoint()
调用也是多余的,因为它正在移动到同一点。
现在你有了一个完整的三角形,它应该被正确填充
试试bottomShapelayer.background=uicolor().redcolor@KishoreKumar感谢您的评论,但它不起作用,而是画了一个矩形