Question

I have a special class that manages gestures and other things. It is strongly targeted towards iPhone. On the iPad, I need a 90% different behavior of that class, so I want to split MyController into MyController_iPhone and MyController_iPad.

How would I alloc-init the appropriate class depending on if it’s the iPad or iPhone?

Answer 1

You can do something along the following lines:

MyController *controller = nil;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
    controller = [[MyController_iPad alloc] init];
} else {
    controller = [[MyController_iPhone alloc] init];
}