在代理方法animationDidStop中区分是哪个动画

    

    CATransition *myAnimation = [CATransition animation];

    myAnimation.delegate = self;

    myAnimation.duration = 0.3f;

    myAnimation.timingFunction = UIViewAnimationCurveEaseInOut;

    myAnimation.fillMode = kCAFillModeForwards;

    myAnimation.removedOnCompletion = NO;

    myAnimation.type = kCATransitionPush;

    myAnimation.subtype = kCATransitionFromLeft;

    [myAnimation setValue:@"popview" forKey:@"animType"];

    

    [self.userLoginViewController.navigationController.view.layer

     addAnimation:myAnimation forKey: nil];

- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{

   

   if([[anim valueForKey:@"animType"] isEqualToString:@"popview"]) {

    

         [self.userLoginViewController.navigationController.view removeFromSuperview];

        

    }

   

}