private String nameForId(int id) {
    String name = idNames.get(id);
    if (name == null) {
      try {
        name = res.getResourceEntryName(id);
      } catch (NotFoundException e) {
        name = String.format("0x%8x", id);
      }
      idNames.put(id, name);
    }
    return name;
  }
Returns true when view layers draw their IDs.
saklib/src/main/java/com/wanjian/sak/layer/impl/ScalpelFrameLayout.java