1. SuperslimA layout manager for the RecyclerView with interchangeable linear, grid, and staggered displays of views, all with configurable section headers including the sticky variety as specified in the material design docs.
2. StickygridheadersThis project has been superseded by SuperSLiM, a layout manager for RecyclerView. I strongly recommend using SuperSLiM and not StickyGridHeaders.
3. FilepickerA file picker for Android with a responsive UI that can be embedded in your app in a number of different ways.