如何用CAShaperLayer設置角半徑值？

Question

我畫了一條UIBeizerPath的垂直線，我需要這條線有一個值爲5的拐角半徑。我試着記得[pathLayer setCornerRadius: 5];，但我沒有得到結果...你能幫助我嗎？我如何分配角半徑值？這是我的代碼使用

// crea le barre del grafico e gli assegna l'altezza della label y corrispondente 
    UIBezierPath *path = [UIBezierPath bezierPath]; 
    [path moveToPoint:CGPointMake(xPaddingFromYAxis +spaceBetweenBar *j, 200)]; 
    [path addLineToPoint:CGPointMake(xPaddingFromYAxis +spaceBetweenBar *j, yLabelValue.center.y)]; 

    CAShapeLayer *pathLayer = [CAShapeLayer layer]; 
    pathLayer.frame = self.bounds; 
    pathLayer.path = path.CGPath; 
    pathLayer.strokeColor = [UIColor darkGrayColor].CGColor; 
    pathLayer.fillColor = nil; 
    pathLayer.lineWidth = 50; 
    [pathLayer setCornerRadius:5]; 
    pathLayer.masksToBounds = NO; 
    [scroll.layer addSublayer:pathLayer]; 

Answer 1

你需要屏蔽設置綁定爲「YES」。 pathLayer.masksToBounds = YES;

試試這個，看看：

UIBezierPath *path = [UIBezierPath bezierPath]; 
[path moveToPoint:CGPointMake(xPaddingFromYAxis +spaceBetweenBar *j, 200)]; 
[path addLineToPoint:CGPointMake(xPaddingFromYAxis +spaceBetweenBar *j, yLabelValue.center.y)]; 

CAShapeLayer *pathLayer = [CAShapeLayer layer]; 
pathLayer.frame = self.bounds; 
pathLayer.path = path.CGPath; 
pathLayer.strokeColor = [UIColor darkGrayColor].CGColor; 
pathLayer.fillColor = nil; 
pathLayer.lineWidth = 50; 
[pathLayer setCornerRadius:5]; 
pathLayer.masksToBounds = YES; 
[scroll.layer addSublayer:pathLayer];