autorotate the Ipad only not iphone

Question

I am working on an app, where app is required to auto-rotate in Ipad only(ie Landscape and the Potrait mode), which am able to achieve. But the Iphone one is not required to rotate(ie potarit mode only). I tried almost every code available on stackoverflow. but no success. I tried following

(NSUInteger)supportedInterfaceOrientations 

and

(BOOL)shouldAutorotate

but no success. I am also using NVSlider(a third party) for the slide bar. I wrote the code in that file also, as it was too having some orientation related methods, but no result

Answer 1

Well I got the answer. as I was building a Universal app, I was provided with some option. See the images and we can set orientation for IPad and Iphone seprately.

Answer 2

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
{
    return interfaceOrientation == UIInterfaceOrientationPortrait;
}

return YES;}