objective c - How can i tell if an object has a key value observer attached -

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If you tell objects object to deleting Objects: for an important path and not registering that key path It has been, SADS. As -

A supervisor can not be removed for the main path of 'Kepath' because he is not registered as a supervisor. '

Is there a way to determine whether an object is registered supervisor, so I can do this 

  if (object supervisor) (remove supervisor) Other {go on my way to pleasure}

around your deleted Observer call Hold a try 

  @try {[someObject removeObserver: SomeObserver forKeyPath: somePath]; } @chitch (id an exposition) {// nothing, obviously it was not attached because an exception was thrown)

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