qt translator doesn't show translated text in program - qt

Question

I use qt linguist to translate my program in different languages but it doesn't show he translated text in the program.
I set proper fonts and add .ts file to TRANSLATIONS.
I use lupdate and lrelease commands.
how can i create .ts file also? (I create text file and change the format to .ts is it correct way?)

Answer 1

Revie Qt Translation.
To translate the app dynamically:
1 - Open Qt command terminal and go to your project folder.
2 - Get all the translatable string from your project
lupdate -pro Example.pro -ts example.ts
3 - Translate all the string to the language you want using QLinguist
4 - Generate the .qm file with all translation executing:
lrelease example.ts
5 - Add this file, example.qm, as a resource to your project to include it with the executable file. Resource System
6 - Now, use QTranslator to translate the app:
QTranslator* translator = new QTranslator;
if(translator->load(":/"+example.qm)){
qApp->removeTranslator(translator); // Remove the translator if was used before
qApp->installTranslator(translator); // Install again the translator to force a new translation.
qDebug() << "Translation success!" ;
}else{
qDebug() << "Error file not found!";
}
7 - You can handle the translation event using changeEvent:
void MainWindow::changeEvent(QEvent* event)
{
if (event) {
switch(event->type()) {
// When the translator is loaded this event is send.
case QEvent::LanguageChange:
break;
// Whem the system language changes this event is send.
case QEvent::LocaleChange:
//retranslate the ui.
break;
default:
break;
}
}
QMainWindow::changeEvent(event);
}
That's all folks!