Como posso criar umhorizontal rolagem UITextView?

Quando defino meu texto programaticamente, ele adiciona quebras de linha automáticas, portanto, só posso rolar verticalmente ...

 titleView.text = @"this is a very long text. this is a very long text. this is a very long text. this is a very long text. this is a very long text.";

Obrigado por suas respostas.

EDIT: Até agora eu tentei isso:

 UIScrollview *yourScrollview = [[UIScrollView alloc] initWithFrame:CGRectMake(0 ,0 ,       self.view.frame.size.width, 50)];
CGFloat textLength = [titleView.text sizeWithFont:titleView.font constrainedToSize:CGSizeMake(9999, 50) lineBreakMode:NSLineBreakByWordWrapping].width;

yourScrollview.contentSize = CGSizeMake(textLength + 200, 500); //or some value you like, you may have to try this out a few times

titleView.frame = CGRectMake(titleView.frame.origin.x, titleView.frame.origin.y, textLength, titleView.frame.size.height);

[yourScrollview addSubview: titleView];

NSLog(@"%f", textLength);

mas recebi: 'Ameaça 1: sinal SIGABRT'