I'm wondering why you load all those languages and then remove all but one of
them? Being a mobile app, I have to be somewhat conscience of memory foot
print. Do you see anything wrong with:
void Backend::selectLanguage( QString language ) {
translator = new QTranslator(this);
translator->load( language, commonPath()+"/translations" );
qApp->installTranslator(translator);
}
?
> Hello Jason,
> I got the same issue some times ago … and I found that it’s possible to use
> the translation feature of Qt … that seems static, but it’s not.
> And localize.biz it’s a wonderful site that allow you to modify Qt
> translation files directly on web and download the updated one.
>
> The trick to achieve (summarized) is the following:
> Somewhere in your code maintain and update from remote an array of
> Translators:
> translators["en"] = new QTranslator(this);
> translators["en"]->load( "tr_en", commonPath()+"/translations" );
> translators["de"] = new QTranslator(this);
> translators["de"]->load( "tr_de", commonPath()+"/translations" );
> translators["fr"] = new QTranslator(this);
> translators["fr"]->load( "tr_fr", commonPath()+"/translations" );
> translators["ru"] = new QTranslator(this);
> translators["ru"]->load( "tr_ru", commonPath()+"/translations" );
> You can change these entry with new files downloaded at runtime.
>
> Then you implement a method that you call at runtime for changing the
> translator, something like that:
>
> void Backend::selectLanguage( QString language ) {
> foreach( QString lang, translators.keys() ) {
> if ( lang == language ) {
> qApp->installTranslator( translators[lang] );
> } else {
> qApp->removeTranslator( translators[lang] );
> }
> }
> this->language = language;
> emit languageChanged();
> }
> And then there is the final trick:
> You create a “fake” property that is always an empty string but it’s binded
> to languageChanged signal:
>
> Q_PROPERTY( QString es READ getES NOTIFY languageChanged )
>
> And (the most annoying part), append this empty string to all string you want
> to change at runtime like that:
>
> qsTr("NEWS<br/>HUB")+backend.es
>
> And close the loop.
>
> What will happen is the following: the translator change at runtime and you
> trigger a languageChanged that trigger an update of all string that got
> backend.es appended that trigger the call of qsTr that take the new
> translation from the new translator.
>
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