UpdateLanguage in translation in qt - qt

Question

I am trying to updatelanguage in my code as shown below:
LanguageTranslation.h
class LanguageTranslation : public QObject
{
Q_OBJECT
Q_PROPERTY(QString emptyString READ getEmptyString NOTIFY languageChanged)
QTranslator translator;
QQmlEngine *m_engine;
public:
explicit LanguageTranslation();
QString getEmptyString();
enum Language {
ENGLISH,
FRENCH
};
Q_ENUM(Language)
signals:
void languageChanged();
public slots:
void updatelanguage(int lang);
};
LanguageTranslation.cpp
#include "LanguageTranslation.h"
QString LanguageTranslation::getEmptyString()
{
return "";
}
void LanguageTranslation::updatelanguage(int language)
{
switch (language)
{
case ENGLISH :
if(!translator.isEmpty())
qApp->removeTranslator(&translator);
translator.load("Monitor_en_US", ":/translations");
qApp->installTranslator(&translator);
// m_engine->retranslate();
break;
case FRENCH:
translator.load("Monitor_fr_FR", ":/translations");
qApp->installTranslator(&translator);
// m_engine->retranslate();
break;
default:
break;
}
emit languageChanged();
}
Rectangle.qml
Rectangle
{
width: parent.width
height: parent.height * 0.20
color: "red"
Text {
width: parent.width
text: qsTrId("abcId")+ LanguageTranslation.emptyString
}
}
This text: qsTrId("abcId") is updating only when i am using
text: qsTrId("abcId") + LanguageTranslation.emptyString
Is there any other way to update the language other than appending emptyString??
I dont want to use emptyString to update the language. Also when i am using retranslate(), my application is crashing.

Answer 1

I got the solution for updateLanguage using retranslate() as shown below:
void LanguageTranslation::upDateLanguage(int language)
{
switch (language)
{
case ENGLISH :
m_translator.load("Language_en_US", ":/translations");
break;
case FRENCH:
m_translator.load("Language_fr_FR", ":/translations");
break;
default:
break;
}
qApp->installTranslator(&m_translator);
m_engine->retranslate();
emit languageChanged();
}