Flutter - Loading paged JSON data into the ListView скачать в хорошем качестве

Flutter - Loading paged JSON data into the ListView

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: https://gist.github.com/branflake2267... Source code fixes for Dart 2: In this source I explicitly cast. I change JSON.decode to new JsonCodec().decode https://gist.github.com/branflake2267... 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.