Any source that I post other than example projects and stubs pretty much state that you can use it, give it away, set fire to it, or throw darts at it, but you CAN NOT SELL it (the source code). It does irritate me that people don't credit other devs when they use their libraries in a paid or free app.
I know a lot of libs are "just wrappers of other libs", but that takes time and knowledge to do. sometimes a LOT of time and knowledge. Some libs like my MLwifi, MLstrings, and MLfiles are not wrappers, they are written from scratch using the linux/android built in library calls. The linux/android demand that everything be free mentality gets tiring because it seems to be expected now. It would be nice to know how many actually use what libs, and a pat on the back helps other devs to keep providing this community with high quality libraries and source code examples. Otherwise, we just do it because we like it, or it's something that was done because that dev needed it and decided to share.
My libraries don't require anything of the user, and they are free to use in any app, but if I were to do it again, I might think twice about making them so freely available. What I'm trying to say in a clumsy way is "don't be a dick" to other developers just to make yourself look special. Credits won't hurt your app and very few will even look, but it can give those devs that little bit of an ego stroke that we all need to continue cranking out stuff for you to cut and paste, or nice libraries to add to your app.
Now I'll put my soap box away and go back to our previous programming (pun intended).
--- Jem