Flutter - Loading paged JSON data into the ListView

Brandon Donnelson demonstrates how to build an infinite scrolling ListView in Flutter that loads and caches paged JSON data.

In this episode, I cover building a infinite list view which loads paged data using a offset and limit. I mock a call that retrieves json and show how to update the list view. I cover these points in the video: - Fetch paged data using an offset & limit - Display loading until the data is returned - Decode JSON into a list of objects - Scrolling will fetch more paged data - Scrolling back will fetch cached data Source code: gist.github.com/branflake2267/dd7251ace7997622d585b4d0769c28… Source code fixes for Dart 2: - In this source I explicitly cast. - I change JSON.decode to new JsonCodec().decode gist.github.com/branflake2267/31aa8a6ce9b2f4f3956c433e3acfb6… Something I don't cover in this episode, when the cached data grows, it could reach a size detrimental to the application. With this in mind, it could easily be remedied with logic that evicts data loaded in to the cache.