Why is this Line Coming Across My UISearchBar?

Question

I have a UISearch Bar with a few Placeholders. I'm making a simple search app for learning iOS, so I'm really new. I found that there was a weird line that was coming behind my UISearchBar whenever I started editing it as in the image :

My SearchBar code is pretty much the standard as any other search bar. I've tried doing the following, but they haven't worked :

//    [self.searchBar setBackgroundColor:[UIColor redColor]];
//    self.searchBar.clipsToBounds = YES;

//    searchBar.layer.borderWidth = 1;
//    searchBar.layer.borderColor = self.searchBar.layer.borderColor;
//    CGRect maskingLine = self.searchBar.frame;
//    UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(maskingLine.origin.x, maskingLine.origin.y+20, maskingLine.size.width, 10)];
//    lineView.backgroundColor = [UIColor greenColor];
//    [self.searchBar addSubview:lineView];

Answer 1

You are adding (for some unknown reason) a subview called lineView to the search bar. That line you are seeing is the lineView.