Get Blocks and Everything else Here :
Best Android Book :
In this part of my App Inventor tutorial I will answer a bunch of questions. I’ll cover how to plan an application so that you can cut down on errors and have no problem with the blocks.
I will also show how to make a Android contacts app that store lists of people. You’ll also store that information in a TinyWebDB. We will then be able to update lists of lists on other screens.