Nested Carousel Error

[Raviron]

Hello, I'm having problems with the nested carousel example. It looks like it runs properly but the data from the first carousel gets copied to the rest. When I changed the data generator to the following:

• (id)initWithCoder:(NSCoder )aDecoder { if ((self = [super initWithCoder:aDecoder])) { //set up data //this is an array of arrays self.items = [NSMutableArray array]; for (int i = 0; i < 5; i++) { NSMutableArray subitems = [NSMutableArray array]; for (int j = 0; j < 5+i; j++) { [subitems addObject:[NSNumber numberWithInt:j+i]]; } [_items addObject:subitems]; } } return self; } I should get 5 arrays of different sizes, and with different numbers, but what you see are 5 carousels with the numbers 0-4.

Specifically I noticed that setting iCarousel.tag seems to have no effect. Is this a bug or am I missing something? Thanks

[Raviron]

Finally figured it out. The example sets the iCarousel.tag value AFTER it is needed. Setting the dataSource value on a carousel triggers the nested calls to numberOfItemsInCarousel and viewForItemAtIndex. So all you have to do is assign the tag immediately after creating the nested carousel, as follows:

• (UIView )carousel:(iCarousel )carousel viewForItemAtIndex:(NSInteger)index reusingView:(UIView )view { if (carousel == _carousel) { //item for outer carousel iCarousel subCarousel = (iCarousel *)view;

  if (view == nil)
  {
      subCarousel = [[iCarousel alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 200.0f, self.view.bounds.size.height)];
      subCarousel.tag = index;  // New location
      subCarousel.dataSource = self;
      subCarousel.delegate = self;
      subCarousel.vertical = YES;
      subCarousel.type = iCarouselTypeCylinder;
  
      view = subCarousel;
  }
  
  //configure view
  //you might want to restore a saved scrollOffset here
  //but for now we'll just set it to zero
  subCarousel.scrollOffset = 0.0f;
  //subCarousel.tag = index;  // Old location

  } ...

Hope this helps, and thanks Nick Lockwood for the carousels. cheers