[iOS] Switch language with no restart

[Viniciuss-Moreira]

Gravacao.de.Tela.2025-10-15.as.04.04.37.mov

Resume

This PR refers to issue #448 to make the user experience easier and more dynamic, without having to reopen the app for the language change to take effect.

Changes

• Add a new component (LanguageManager.swift) that locates strings and instantly deconstructs and constructs views as soon as the language is changed.
• The “title” variable is now called “titleKey” in bottomsheetup.swift, applying to all viewmodels in the app. The purpose is to make it clear that this is localizable text that is going through a function, and not the final text displayed in the view. This facilitates future maintenance and understanding by new programmers in the codebase.
• The text of the alert screen has been changed in the localizables to convey the idea of asking the user whether they want to keep the language change or not, rather than restarting the app.
• Restructuring of views and viewmodels for language manager injection.

[r1b2ns]

Hi @Viniciuss-Moreira, I sent you some fixes you could take a look at.

[r1b2ns]

Running the app, I realized that it’s working fine. These requested changes are just to keep the code cleaner.

[Viniciuss-Moreira]

Thanks @r1b2ns for the review!

[r1b2ns]

I gonna review it this weekend

[r1b2ns]

Very good job, man! In this PR, I just noticed some changes that aren’t related to your feature — for example, in LessonDetails. It would be great if you could implement the language override without changing those other parts.

Another thing is that you’re injecting the LanguageManager via @EnvironmentObject, but in some files, you’re still using the singleton. I think you can choose either approach, but not use both at the same time. Both are valid in my opinion — just not together.

Despite these comments, your code is very good. We’re just polishing it because this feature is very important and impacts the entire app.

[Viniciuss-Moreira]

Thanks again man, for the review! the changes were very enlightening.

I returned to the previous LessonListModel structure but converted the static strings to dynamic strings with the new struct LocalizedLessonText, that observes the language manager and rebuilds the views.

I also returned to the original ForEach in LessonDetailView and only used the language manager injected into the views

If there’s anything else, I’ll be happy to see it.

[r1b2ns]

ACK a220785

[thunderbiscuit]

Awesome work guys!

ACK a220785.