I am new to MIT app inventor and I like it very much.
However, it looks I am missing something important. Searched through samples, FAQ and I still don't get how to use a variable. There are some things what I don't understand:
Design element "switch". If it is changed, it remains changed till application restart, despite it has two positions. How can I use it's position "on" and "off" ? I see only "Switch changed" block under blocks menu.
I set variable = True. How can I create a conditional action like:
if variable==True, do this; else ...
Here are some resources to help you learn to use the AI2 tools. A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.