Grouped UITableview remove outer separator line

Question

I have a grouped UITableview which is created programatically. Also I have a cell with xib file populated in tableview programmatically as well. So far so good. But I want t

Answer 1

iOS 10~13 only remove section head foot line.

-(void)layoutSubviews{
    [super layoutSubviews];
    //for iOS10~iOS13: only remove section head foot line
    for (UIView * v in self.subviews) {
        if ( v != self.contentView &&
            (v.frame.size.width == self.frame.size.width)){
            [v removeFromSuperview];
        }
    }
}

if wan to remove all line:

    for (UIView * v in self.subviews) {
        if (v != self.contentView){
            [v removeFromSuperview];
        }
    }