code: @SuppressWarnings("rawtypes")
      public static List<Map<String, Object>> query(final Uri uri, Map<String, Class> projectionTypeMap, String selection, String[] selectionArgs,
              String sortOrder) {
          return query(uri, projectionTypeMap, selection, selectionArgs, sortOrder, null);
      }
docs: Query by context.getContentResolver().
  
  @param uri
  @param projectionTypeMap
  @param selection
  @param selectionArgs
  @param sortOrder
  @return