QObject::tr() not translating language properly

Question

QLocale systemLocale;
LOG_ERROR() << "SYSTEM LANGUAGE:" << systemLocale.languageToString(systemLocale.language());
LOG_ERROR() << QObject::tr("Welcome");

The second line prints the correct language, when I change the language from the phone settings, however, "Welcome" doesn't get translated to the current system language. What could be the issue with this?

Do you have this string translated? Did you properly integrate the translations into the build? — Kuba hasn't forgotten Monica, Jul 28 '14 at 15:03
Please see this post [link](http://stackoverflow.com/questions/15355156/is-it-possible-to-change-language-on-qt-at-runtime) — Krionix, Jul 28 '14 at 15:31

score 0 · Answer 1 · answered Aug 19 '14 at 12:48

The translation is probably not loaded. Here's how you can load a file:

QTranslator translator;
QString locale_string = QLocale().name();
QString filename = QString("my_app_%1").arg(locale_string);
if (translator.load(filename, "app/native/qm")) {
    app.installTranslator(&translator);
}

This would try to load translations from app/native/qm/my_app_fr.qm on a french device, for example.

Note that by default, you'll have to restart the application after changing the device language. You can use a LocaleHandler to update the translation when the phone language changes. Listen to onSystemLanguageChanged() signal, remove the old translator, then load the new one (same code as above).

QObject::tr() not translating language properly

1 Answers1