4
I only played a few times with Android and always had problems due to test on a smartphone with Android 4.0, for example, I had to use another Ratingbar because of the incompatibility.
Since Material Design is only available for version 5.0, as occurs at "standardization" of the design of an app on different versions of Android? It is common to use frameworks like the Ionic to prevent this?
Have you checked the appcompat library? It is compatible with older versions such as Actionbar, among other things not available in versions 3.0-- @Danielamarquesdemorais
– Wellington Avelino