iOS - iCarousel only uses indexes of visible views - ios

Question

I am implementing iCarousel (using coverflow type) to show a bunch of images of some videos that are available in my app. (2 seperate carousels, same problem)
I use the arrays of videos for the numberOfItemsInCarousel (currently 60) and viewForItemAtIndex to use the objects from my array to build out the view.
However, only 5 of the videos are being used. So 60 items are showing up in the carousel, but its just the same 5 items being repeated. When I logged the index inside of the 'viewForItemAtIndex', it only gets called 5 times (0,1,...5 are the log results).
After some testing, it seems that the only indexes being called are for whatever is visible in the carousel by default.
What gives?
*The arrays have been tested to ensure they are populated with all unique videos. The array is fine, its something to do with the iCarousel method.
- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel{
if(carousel==freeCarousel){
NSLog(#"Free: %i",freeVideos.count);
return freeVideos.count;
}
if(carousel==feeCarousel){
NSLog(#"Fee: %i",feeVideos.count);
return feeVideos.count;
}
return 0;
}
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view{
NSLog(#"TESTING");
if (view == nil){
//Copy array for easier use of global Video / File object
NSArray *copy = [[NSArray alloc] init];
if(carousel==freeCarousel){
copy = [NSArray arrayWithArray:freeVideos];
}
else if(carousel==feeCarousel){
copy = [NSArray arrayWithArray:feeVideos];
}
Videos *currentVideo = [copy objectAtIndex:index];
Files *file = [currentVideo valueForKey:#"files"];
NSLog(#"TITLE TEST: %#",currentVideo.title);
//Video Button
UIButton *buttonVideo = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 465, 310)];
[buttonVideo setTag:[currentVideo.videoID intValue]];
[buttonVideo addTarget:self action:#selector(showVideoDetails:) forControlEvents:UIControlEventTouchUpInside];
//Thumbnail
UIImageView *videoThumbnail = [[UIImageView alloc] initWithFrame:buttonVideo.bounds];
//Border
[videoThumbnail setBackgroundColor:[UIColor whiteColor]];
//Caption
UIImage *captionImage = [UIImage imageNamed:#"video-box-caption"];
UILabel *caption = [[UILabel alloc] initWithFrame:CGRectMake(0, videoThumbnail.frame.size.height-captionImage.size.height, videoThumbnail.frame.size.width, captionImage.size.height)];
[caption setBackgroundColor:[UIColor colorWithPatternImage:captionImage]];
[caption setTextAlignment:NSTextAlignmentCenter];
[caption setFont:[UIFont fontWithName:#"Open Sans Condensed" size:16]];
[caption setTextColor:[UIColor whiteColor]];
[caption setText:currentVideo.title];
[videoThumbnail addSubview:caption];
if(file.thumbnailPath!=(id)[NSNull null] || ![file.thumbnailPath isEqualToString:#"missing_image.png"]){
UIImage *thumbnailImage = [[DataManager sharedManager] generateThumbnailImage:currentVideo];
[videoThumbnail setImage:thumbnailImage];
[buttonVideo addSubview:videoThumbnail];
}else{
UIImage *thumbnailImage = [UIImage imageNamed:#"video-details-thumbnail"];
[videoThumbnail setImage:thumbnailImage];
[buttonVideo addSubview:videoThumbnail];
}
view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, buttonVideo.frame.size.width, buttonVideo.frame.size.height)];
[view addSubview:buttonVideo];
}
return view;
}

Answer 1

You've implemented the viewForItemAtIndex method wrong.
iCarousel recycles views to avoid allocating new objects while moving (like a UITableView). The if (view == nil) check is saying "if view is nil create a new view, otherwise use a view I've already set without modifying it).
Move any index-specific logic outside of the if (if view == nil) check. If you look at the iCarousel examples included with the library, it shows how to do this correctly.