Question

I have been looking around at tutorials on how to make an iPhone app universal, so that it work on iPad. However when I have tried to implement this I’ve become a bit stuck since Xcode has changed a fair amount and the tutorials seem out of date. So far I have done the following:

I updated the devices to be set to Universal:

I have also updated my app delegate class like so:

// Set up tab 1
TabOne_ViewController *tabOne = [TabOne_ViewController alloc];
UIViewController *tabOneViewController;

// Set up tab 2
TabTwo_ViewController *tabTwo = [TabTwo_ViewController alloc];
UIViewController *tabTwoViewController;

// Determine which UI to load for each tab
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
{
    tabOneViewController = [tabOne initWithNibName:@"TabOne_ViewController" bundle:nil];
    tabTwoViewController = [tabTwo initWithNibName:@"TabTwo_ViewController" bundle:nil];
}
else
{  
    tabOneViewController = [tabOne initWithNibName:@"TabOne_ViewController(iPad)" bundle:nil];
    tabTwoViewController = [tabTwo initWithNibName:@"TabTwo_ViewController(iPad)" bundle:nil];
}

I have also created two extra .xib files:

• TabOne_ViewController(iPad).xib
• TabTwo_ViewController(iPad).xib

Finally I tried to set the class on TabOne_ViewController(iPad).xib to be TabOne_ViewController.h & TabOne_ViewController.m. And also TabTwo_ViewController(iPad).xib to be TabTwo_ViewController.h & TabTwo_ViewController.m. However I wasn’t able to do so.

Have I gone wrong somewhere? Are there extra steps I have missed out?

EDIT:

When I was referring to not being able to select the class I mean in IB:

Without being able to link the class to the .xib file I can’t link up all of the IBOutlets & IBActions.

Answer 1

In the xib you tried to change the class of the View. But you have to change the class of File's Owner