如何使用 CAShaperLayer 设置圆角半径值？

Question

我用 UIBeizerPath 画了一条垂直线，我需要这条线有一个值为 5 的角半径。我试图回忆 [pathLayer setCornerRadius: 5]; 但我没有得到结果......你能帮我吗？如何分配角半径值？这是我使用的代码

    // 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

您需要设置掩码绑定为'YES'。 pathLayer.masksToBounds = YES;

试试看：

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];

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