December 2014
Beginner to intermediate
240 pages
6h 54m
English
book
Learning MIT App Inventor: A Hands-On Guide to Building Your Own Android Apps
by Derek Walter, Mark Sherman
Content preview from Learning MIT App Inventor: A Hands-On Guide to Building Your Own Android Apps
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Summary
Component properties are variables that are built into a component. Setting a component property’s value in the Designer sets the starting value of that property. It can be changed as the app runs—by blocks, by the user, or both. Component properties are accessible with the green getter and setter blocks for that component, and they have global scope.
Event parameters are special variables that give you extra information about an event. Event parameter variables are valid only inside the event handler they belong to (meaning that they have limited scope). Each time the event runs, you might get different information in those parameters, which reflects the details of that one occurrence of the event. Event parameters use the orange getter ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.