This tutorial introduces location services features available in App Inventor. A future tutorial will demonstrate these features applied to specific applications. About Android Device Location and GPS Features Your Android device probably has built-in features to identify the device’s location. These features may include: Global Positioning Satellite receiver (GPS) Cellular network location information Wi-Fi network location … Continue reading Using Location Information and GPS for finding your position→
Last fall, I created a tutorial on adding App Inventor apps to the Google Play Store. That tutorial is still worth reading and is available here. But I heard from readers that they would like more information about the process of adding an App Inventor app to the Google Play Store. I have created this … Continue reading How to Add Your App Inventor App to the Google Play App Store→
Volume 4 of my App Inventor guide books series is now available in e-book and print format. The book also includes video-based tutorials to supplement the text. Back Cover Description MIT App Inventor is the fast and simple way to develop Android apps. Using a programming system that runs in your Internet browser, just drag … Continue reading Announcing App Inventor 2 Graphics, Animation and Charts book→
A reader asked if it might be possible to “gray out” a button so that pressing it has no action, until appropriate data has been entered? The answer is “Yes, we can do this.” After some thought, I came up with the following simple solution. Update 1: Check the comments to this post for a … Continue reading Can you “gray out” a button until data entry is complete?→
Overview App Inventor supports scanning of product identification “bar codes” and QR codes. Bar codes are typically found on consumer product packaging. QR codes are used for web addresses (so you can scan the QR code and go directly to the web address), part and product inventory tracking, and to deliver short messages. In this … Continue reading Scanning bar codes and QR Codes with App Inventor Apps→
Download here: App Inventor Bluetooth Cheat Sheet (PDF) Covers basic Bluetooth text communications with links to tutorials on sending numeric and binary data, and connecting to Arduino over App Inventor Bluetooth. App Inventor sample source code available here. High res, suitable for printing. Feel free to share with others. Here is a GIF image of the … Continue reading Free-Download App Inventor Bluetooth Communications Cheat Sheet→
Learn to program with App Inventor
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