如何使用 CAShaperLayer 設置角半徑值？

Question

我用 UIBeizerPath 畫了一條垂直線，我需要這條線的角半徑為 5。我試着回憶[pathLayer setCornerRadius: 5]; 但我沒有得到結果......你能幫幫我嗎？ 如何分配角半徑值？ 這是我使用的代碼

    // 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

您需要將掩碼設置為“是”。 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];