AutoGridRecyclerView

private int numberOfColumns() {
        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        // You can change this divider to adjust the size of the poster
        int widthDivider = 400;
        int width = displayMetrics.widthPixels;
        int nColumns = width / widthDivider;

        return nColumns;
    }