Open Source Development

Google Summer of Code Please post your inquiries and discussions about MIT App Inventor Google Summer of Code submissions here. Extension Development This category is for questions specifically about working with MIT App Inventor's open source repository as it pertains to extension development. Anyone interested in developing an extension should start by reviewing the following documents and ask questions here if you encounter issues. Also check the parent category #open-source-development for additional troubleshooting when it comes to building the master or ucr branches.

Topic	Replies	Views	Activity
About the Open Source Development category Open Source Development	5	2535	January 16, 2024
Need help for recyclerview library Extension Development	51	1056	July 16, 2025
Getting "invoke: no method named StartAdMob in class java.lang.Boolean" in Custom AdMob Extension Extension Development monetization	5	58	July 14, 2025
🏃‍♂️ Fast : An Efficient Way to Build & Publish Extensions Extension Development extension-developmen , fast-cli , extension-builder	416	10525	July 15, 2025
Extension Document Generator - Generate Docs For Your Extension In A Single Click Extension Development extensions , extension , extension-docs	51	1473	July 12, 2025
Super Dev Mode pauses on “invisible” breakpoints & then shows blank screen Open Source Development	5	97	July 11, 2025
How do you use attach XML feature(@usesXML) in extensions? Extension Development	2	96	July 3, 2025
Need Help Making App Inventor UI Truly Responsive for Mobile Open Source Development gsoc	4	151	July 2, 2025
Add deep link support in app Extension Development	77	10328	June 27, 2025
After Commit 0048cfa, the locally compiled version is blank after logging in, and some js have 404 errors Open Source Development bug-or-problem	1	64	June 27, 2025
AIX Extensions Catalog: The Open-Source Hub for App Inventor Extensions Extension Development	10	388	June 26, 2025
A Problem about Cyber Security Attack Vendor for Extensions Extension Development extensions	1	105	June 25, 2025
Code too large after adding componants Open Source Development bug-or-problem	6	198	June 25, 2025
Error: Property AccelerometerSensor.LegacyMode has no category Open Source Development bug-or-problem	4	87	June 14, 2025
Accessing AppInventor on localhost Open Source Development	3	133	June 14, 2025
Windows testing of SDK 35 changes Open Source Development	0	143	June 13, 2025
Free AdMob ads extension source code for extension developers Extension Development monetization	5	4490	June 13, 2025
OneSignal Extension Fails in MIT App Inventor with NoClassDefFoundError — Works in Other Builders Extension Development help	15	167	June 12, 2025
Request for Feedback : Property Editor for creating ML models Google Summer of Code	1	129	June 7, 2025
Feedback Requested: Layout Mockups for App Inventor Mobile UI Open Source Development	5	300	June 1, 2025
How to set custom icon for extension Logo Extension Development iconname	73	4438	May 31, 2025
Something New: Making Extension Using Blocks Extension Development extension-developmen	32	2202	May 30, 2025
About Javascript Extension Development javascript	2	190	May 29, 2025
How do I add an Android permission in an extension? Extension Development help	2	230	May 26, 2025
Enderman8843/Click BUG Extension Development	1	167	May 25, 2025
The Mist Project: AI and Syntax Integration for App Inventor Open Source Development	12	775	May 24, 2025
Special Characters being encoded in filename? Extension Development	18	232	May 29, 2025
MediaUtil "private"? Extension Development	1	125	May 21, 2025
Get Support Fragment Manager Extension Development help	8	195	May 20, 2025
Contributing outside of GSoC Google Summer of Code	2	160	May 9, 2025