B4A Library Licensing library

This library allows you to use the market services to protect your application.
See the tutorial for more information: http://www.b4x.com/forum/basic4andr...ur-android-application-licensing-library.html
The documentation is available here: Basic4android - Licensing

Installation instructions:
- Unzip the attached file and copy Licensing.jar and Licensing.xml to the internal libraries folder (default): C:\Program Files\Anywhere Software\Basic4android\Libraries

V1.21 - Adds protection from NullPointerException error reported.
V1.20 - Fixes an issue related to Android 5.


  • Licensing.zip
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Well-Known Member
Licensed User
Longtime User
According to Google documentation it is indeed not required for API 16+.

Without the licensing library for api 16+, how do I be certain that someone is indeed a paying user before I grant him/her access to my app?