@Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        return mLogic.onCreateViewHolder(parent, viewType);
    }
A simple adapter which also inserts a header item ".." to handle going up to the parent folder.

@param <T> the type which is used, for example a normal java File object.
android/modules/module_filepicker/src/main/java/com/nononsenseapps/filepicker/FileItemAdapter.java