MIT App Inventor and Lazy loading of ListView Contents

[ABG]

Go Scroll Yourself! blocks only (No extensions, No JavaScript)

This tutorial is intended for people who need to display a heavily customized scrollable window into a large table. It can also be used as a CardView. (I needed a pithy title, and "The Elder Scrolls" was taken.) My sample subject area for my data is the historical or current set of legislators in the US Congress, both Representatives and Senators, with photos (where available.) Credits for the source data: Data from https://github.com/unitedstates/congress-legislators photos from https://…