CAShapeLayer cornerRadius不工作在UIBezierPath

Question

嗨，下面的代碼使一個灰色的小矩形與一個黑暗的邊框。角落收音機不工作，我不明白爲什麼，我試過應用maskToBounds = true，但這只是隱藏整個對象...

我該如何實現這一目標？由於

CGRect r = CGRectMake(conX, conY, 220, 50); 
    UIBezierPath* conPath = [UIBezierPath bezierPathWithRect:r]; 
    CAShapeLayer* conLayer = [CAShapeLayer layer]; 
    conLayer.path = conPath.CGPath; 
    conLayer.cornerRadius = 5.0; 
    UIColor *bg = [UIColor colorWithWhite:1 alpha:0.7]; 
    [conLayer setFillColor:bg.CGColor]; 
    [conLayer setStrokeColor:[UIColor grayColor].CGColor]; 
    [[self layer] addSublayer:conLayer]; 

Answer 1

UPDATE：

您可以簡單地使用UIBezierPath(roundedRect: CGRect, cornerRadius: CGFloat).CGPath來創建圓矩形路徑

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我建議採用圓矩形路徑，而不是：

CGRect r = { .size = { 220.0f, 50.0f } } ; 

CAShapeLayer * layer = [ CAShapeLayer layer ] ; 
layer.path = CGPathCreateRoundRect(r, 5.0f) ; 

其中CGPathCreateRoundRect()是

CGPathRef CGPathCreateRoundRect(const CGRect r, const CGFloat cornerRadius) 
{ 
    CGMutablePathRef p = CGPathCreateMutable() ; 

    CGPathMoveToPoint(p, NULL, r.origin.x + cornerRadius, r.origin.y) ; 

    CGFloat maxX = CGRectGetMaxX(r) ; 
    CGFloat maxY = CGRectGetMaxY(r) ; 

    CGPathAddArcToPoint(p, NULL, maxX, r.origin.y, maxX, r.origin.y + cornerRadius, cornerRadius) ; 
    CGPathAddArcToPoint(p, NULL, maxX, maxY, maxX - cornerRadius, maxY, cornerRadius) ; 

    CGPathAddArcToPoint(p, NULL, r.origin.x, maxY, r.origin.x, maxY - cornerRadius, cornerRadius) ; 
    CGPathAddArcToPoint(p, NULL, r.origin.x, r.origin.y, r.origin.x + cornerRadius, r.origin.y, cornerRadius) ; 

    return p ; 
}