How to check if a UIViewController is of a particular sub-class in objective c?

Question

I want to be able to check the type of a UIViewController to see if it is of a certain type like this

c code

if (typeof(instance1) == customUIViewController) 
{
  customUIViewController test = (customViewController)instance1;

  // do more stuff
}

Solution 1

The isKindOfClass: method indicates whether an object is an instance of given class or an instance of a subclass of that class.

if ([instance1 isKindOfClass:[CustomUIViewController class]]) {
    // code
}

If you want to check whether an object is an instance of a given class (but not an instance of a subclass of that class), use isMemberOfClass: instead.

Solution 2

var someVC: UIViewController

if someVC is MyCustomVC {
    //code
}

Solution 3

Swift version:

var someVC: UIViewController

if someVC.isKindOfClass(MyCustomVC) {
    //code
}

Solution 4

Try:

[vc isKindOfClass:[CustomViewController class]];

Solution 5

I just wanted to add in addition to this answer that if you're wanting to see if a view controller is of a certain type in a switch statement (in Swift) you can do it like this:

var someVC: UIViewController?

switch someVC {
    case is ViewController01: break
    case is ViewController02: break
    case is ViewController03: break
    default: break
}

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Comments

[Moshe]

You should be able to use C code in the iPhone SDK... Have you tried your code yet?

[TOMKA]

Except that is not valid C code...

[Moshe]

@dreamlax - I never said it was.