String resource internationalization

General discussion
1

I’m developing an embedded product that will be released around the World.

  • What does LVGL do to support using user-facing strings as resources that can easily be translated?
  • How robust is the virtual keyboard widget in this regard?
2
  1. This library implements translations for C strings: https://github.com/lvgl/lv_i18n. I don’t personally use it as my projects are all English-only, but it should work.
  2. The default keyboard only supports English letters, however, you can create custom keyboard layouts for it.
3

I’ve used it in my projects and it worked well. It even handles plural forms. E.g. “1 user”, “10 users”.

4

How do you implement language switching during operation?Can you tell me?

5

As far as I know, you can call lv_i18n_set_locale and then set the text of all your widgets again. It will automatically use a different translation.

6

Thank you. Yes, this setting is successful. But I want to realize that after calling the lv_i18n_set_locale function, all texts are automatically refreshed and the modified language is displayed. Does lvgl provide similar functions?

7

Unfortunately that’s not easy to implement for most widgets as they store a copy of the string themselves. The easiest solution is to architect your code in such a way that you can reset the text without having to tear down and recreate the entire widget structure.

8

Okay, thank you for your reply.