iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution

Question

Please suggest me.How to solve this.

I got this reason from iTunes Store**"iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution"** But I built in only for iPhone.

Answer 1

I got answer of my question.But i didn't change anything in my code.I submitted the same build to the AppStore.App store is accepted my same binary,This is worked for me.

Answer 2

In order to determine if your app is running in iPhone resolution on iPad, embed this code in you opening view controller class:

-(void)viewDidAppear:(BOOL)animated
{
  [super viewDidAppear:animated];
  NSLog(@"width = %f, height = %f", self.view.frame.size.width, self.view.frame.size.height);
}

If your app is displayed in iPhone resolution, you will see this in the output console:

width = 320.000000, height = 480.000000

I had the same app rejection reason and it turned out that in FACT my app WAS in iPhone resolution on the iPad, but in iPhone 4 resolution (which I didn't design it for) which made it look like it was in iPad resolution even though it wasn't. Apple has dropped support for the iPhone 4 with iOS 8 and will likely drop support for iPhone 4S with iOS 9, so I neglected to design the app for iPhone 4 which meant that some of my UI elements at the bottom of the screen were not visible on the iPad displaying iPhone 4 resolution. That was the reason for the rejection (really dumb since it's not even an iPad app).

This is what I got back from Apple Developer Technical Support:

While your app may be built for iPhone or iPod, it must still run on iPad. Did you test your app on an iPad prior to submission? If you don't have an actual iPad device to test with, many issues that lead to a 2.10 rejection can be spotted by testing in the iPad simulator. I'll go over a couple of the most common ones here:

1) Controls or Important Content That Underlap the Status Bar

If your app places controls or important content in the twenty points below the top of the screen, they will be cutoff when the app is run on a retina iPad [1]. This can lead to a poor user experience. Make sure that your app positions controls and important content below the status bar. You can use the topLayoutGuide property from within your UIViewController instance to access the current status bar height. You can also create Auto Layout constraints between the topLayoutGuide and your view controller's subviews to ensure they remain positioned below the status bar at all times. https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instp/UIViewController/topLayoutGuide

2) Authoring Your Interface Specifically For the 4" Screen

Both the iPad and iPad retina simulate a retina 3.5" display when running iPhone apps. This means that content positioned 480 points or more below the top of the screen will not be visible when the app is run on an iPad (or an iPhone 4, and iPhone 4s for that matter). This can lead to a poor user experience. Make sure that you have designed your interface to adapt to any height. This means either adopting Auto Layout[2] or overriding -viewWillLayoutSubviews/-viewDidLayoutSubviews in your view controllers to manually position your elements for the given screen size. If your app displays more content than will fit on a 3.5" screen, consider placing it in a scroll view. https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/UIScrollView_pg/Introduction/Introduction.html

Before we continue, please try running your app on either an iPad device or the iPad simulator (both the regular and retina). See if you can spot either of the above issues in your app. If you can't, send me screenshots from your tests and we'll work from there.

[1]: When an iPhone app is run on a retina iPad, a 20 point black bar is overlaid atop the app's window, obscuring any content underneath it.

[2]: To get started with Auto Layout, you'll want to watch the Introduction to Auto Layout for iOS and OS X session from WWD 2012 https://developer.apple.com/videos/wwdc/2012/?id=202 followed by the Auto Layout by Example session from WWDC 2012 https://developer.apple.com/videos/wwdc/2012/?id=232.