Workaround for rounded corners of grouped UITableView, iOS7 [duplicate]

Question

Since the introduction of iOS7, rounded corners for the cells of UITableView with grouped style is removed by Apple (confirmed here). Still, I am sure there are smart people out there who have built workarounds for this.

Please, to help me and a lot of other fellow iOS programmers, post your workarounds to get rounded corners for the cells in a UITableViewStyleGrouped in iOS7 in this thread. It will be much appreciated!

Answer 1

Considering you can have multiple groups in your table, some cells are rounding in just in the top corners, other just in the bottom, and others are not rounded. So I created here really fast a subclass (that can be really shortened) of UITableViewCell with the following methods:

A property that you can call anything you want, I called top and bottom:

@property(nonatomic,assign) BOOL top,bottom;

The implementation:

- (void)layoutSubviews
{
    [super layoutSubviews];

    if(self.top && self.bottom)
    {
        self.layer.cornerRadius = 10;
        self.layer.masksToBounds = YES;
        return;
    }

    if (self.top)
    {
        CAShapeLayer *shape = [[CAShapeLayer alloc] init];
        shape.path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height) byRoundingCorners:UIRectCornerTopLeft|UIRectCornerTopRight cornerRadii:CGSizeMake(10, 10)].CGPath;
        self.layer.mask = shape;
        self.layer.masksToBounds = YES;
        return;
    }

    if (self.bottom)
    {
        CAShapeLayer *shape = [[CAShapeLayer alloc] init];
        shape.path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height) byRoundingCorners:UIRectCornerBottomLeft|UIRectCornerBottomRight cornerRadii:CGSizeMake(10, 10)].CGPath;
        self.layer.mask = shape;
        self.layer.masksToBounds = YES;
    }
}

In Swift 4.2:

class MyCell: UITableViewCell {

var top = false
var bottom = false

override func layoutSubviews() {
    super.layoutSubviews()

    if top && bottom {
        layer.cornerRadius = 10
        layer.masksToBounds = true
        return
    }

    let shape = CAShapeLayer()
    let rect = CGRect(x: 0, y: 0, width: bounds.width, height: bounds.size.height)
    let corners: UIRectCorner = self.top ? [.topLeft, .topRight] : [.bottomRight, .bottomLeft]

    shape.path = UIBezierPath(roundedRect: rect, byRoundingCorners: corners, cornerRadii: CGSize(width: 10, height: 10)).cgPath
    layer.mask = shape
    layer.masksToBounds = true
  }
}

To use is simple, if your cell is the first of a group, set top = True, if it is the last cell, bottom = true, if the cell is the only on the group set both to true.

If you want more or less rounded, just change the radios from 10 to another value.