How to stop the Observer in NSNotification to called twice?

Question

I have an observer of NSNotification which is called twice. I do not know what to do with it.

I googled it but no solution found.

[[NSNo         


        

Answer 1

Try to removeObserver in viewWillDisappear method :

-(void)viewWillDisappear:(BOOL)animated{

[[NSNotificationCenter defaultCenter] removeObserver:self name:@"startAnimating" object:nil]; }