设置圆角

UIViewHTVAddForRoundedCorner.h

CGRect rect = self.bounds;
    
    // Create the path
    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:rect
                                                   byRoundingCorners:corners
                                                         cornerRadii:CGSizeMake(radius, radius)];
    
    // Create the shape layer and set its path
    CAShapeLayer *maskLayer = [CAShapeLayer layer];
    maskLayer.frame = rect;
    maskLayer.path = maskPath.CGPath;
    
    // Set the newly created shape layer as the mask for the view's layer
    self.layer.mask = maskLayer;