This has been discussed before:
http://www.b4x.com/forum/libraries-...notice-about-libraries-license.html#post70702
If you want to ensure that any app you create complies with licence terms and conditions of any library used you'll have to research each library that you use - unless a library you use has actually included exact licence terms (pretty uncommon).
Some libraries are obviously just wrappers for native Android classes and no special action is required.
My Geocoder and WebViewExtras libraries for example are just wrappers around native Android classes, the CC licence applies here to my code.
The native Android classes require no attribution i'm sure as they are just a standard part of the Android operating system.
Some libraries are wrappers for 3rd party Android or Java libraries and you'd have to research these.
Find the original 3rd party library that has been wrapped and find out what licence applies.
Lastly some libraries are not wrappers but just code that a developer has written to do a specific task - again the CC licence applies here.
Until some sort of standard is established in the creation of B4A libraries i think the only way you can be sure that your app complies with any required licence terms is to do some research and find out if your app is using code which requires special action.
Martin.