如何从AWS S3解析/请求对象以填充自定义UICollectionView？

Question

I am looking to achieve an interface similar to that of iBooks, where there is a master view that contains thumbnail images of books/magazines/articles in a grid form, like so:

Now I am just inferring that they used a custom UICollectionView to achieve this interface, however if there is another method, I am well open to implement it. My question is, I have all my thumbnail images/objects uploaded in a bucket back in Amazon s3, how do i parse those onto a custom UICollectionView to populate it, creating the same interface as shown above? what code should I implement in swift?

Answer 1

You should do the following:

1. Fetch JSON from the server that describes available items. You can use AFNetworking or Alamofire for this.
2. Parse the JSON data into objects
3. Create a UICollectionViewController and UICollectionViewFlowLayout subclasses that define iBooks-like UI (you can take a look at this and this examples)
4. It would be better to use some opensource solution for image loading/caching as well. Like SDWebImage