Paste code

NSArray *images=  [NSArray arrayWithObjects:[UIImage imageNamed:@"fish_right1.png"],
                       [UIImage imageNamed:@"fish_right2.png"], [UIImage imageNamed:@"fish_right3.png"], [UIImage imageNamed:@"fish_right4.png"], [UIImage imageNamed:@"fish_right14.png"], [UIImage imageNamed:@"fish_right15.png"], [UIImage imageNamed:@"fish_right20.png"], nil];
    int currentImageIndex=0;
    
    
    [UIView transitionWithView:self.first_fish duration:2.0
                       options: UIViewAnimationOptionAllowUserInteraction
                    animations:^ {
                        //                        currentImageIndex = currentImageIndex % images.count;
                        //                        currentImageIndex = ++(currentImageIndex % images.count);
                        [self.first_fish setImage:[images objectAtIndex:currentImageIndex] ];
                    } completion:^(BOOL finished) {
                    }
     ];
    [self animation_left];
    UITapGestureRecognizer *tapped = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(fish_move:)];
    tapped.numberOfTapsRequired = 1;
    [self.first_fish addGestureRecognizer:tapped];