> Android’s SMS APIs are not well-documented, and Google has changed them over time. There were no SMS APIs prior to 4.4. Yes, the implementation was not prote

> Android’s SMS APIs are not well-documented, and Google has changed them over time. There were no SMS APIs prior to 4.4. Yes, the implementation was not protected as system only, but it was an implementation detail not an API guarantee, which is a very different thing. This was even called out in a blog post 4 years ago: http://android-developers.blogspot.com/2010/05/be-careful-with-content-providers.html http://android-developers.blogspot.com/2010/05/be-careful-wi...