Question

我在Windows上运行 QT 5.10.1，app仅在QML中生成。我试图在运行时使用新的retranslate()来更改语言。当前代码可以正常使用附加getEmptyString()的文本。但qsTr()中的其余文本却没有。 TranslationHandler.cpp是空的，我还没有清理包含内容。

因此，我可以使用context属性从QML设置语言。我也检查了引擎是同一个实例。任何想法为什么重新翻译功能不起作用？

感谢您的帮助！

main.cpp：

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QTranslator>
#include <QtGui>
#include <QQmlContext>
#include <QDebug>
#include <QQmlEngine>
#include "translationhandler.h"

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    TranslationHandler transHndl(&engine);

    engine.rootContext()->setContextProperty("translateHandler", &transHndl);
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    if (engine.rootObjects().isEmpty())
        return -1;
    return app.exec();
}

TranslationHandler.h：

#ifndef TRANSLATIONHANDLER_H
#define TRANSLATIONHANDLER_H
#include <QTranslator>
#include <QString>
#include <QGuiApplication>
#include <QObject>
#include <QDebug>
#include <QQmlEngine>

class TranslationHandler : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QString emptyString READ getEmptyString NOTIFY languageChanged)

public:
    explicit TranslationHandler(QQmlEngine *engine)
    {
        m_translator1 = new QTranslator(this);
        m_currentLanguage = "en";
        m_engine = engine;
    }

    QString getEmptyString()
    {
        return "";
    }

    Q_INVOKABLE QString getCurrentLanguage()
    {
        return m_currentLanguage;
    }

    Q_INVOKABLE void selectLanguage(QString language)
    {
        if(language == QString("jp"))
        {
            m_currentLanguage = language;
            m_translator1->load(":/translation/qml_jp.qm");
            qGuiApp->installTranslator(m_translator1);
            m_engine->retranslate();
        }
        if(language == QString("en"))
        {
            m_currentLanguage = language;
            qGuiApp->removeTranslator(m_translator1);
            m_engine->retranslate();
        }
        emit languageChanged();
    }

signals:
    void languageChanged();

private:
    QTranslator *m_translator1;
    QString m_currentLanguage;
    QQmlEngine *m_engine;

public slots:
};

#endif // TRANSLATIONHANDLER_H

Answer 1

这已被确认为错误，将在5.12版中修复。如果您想自己编译，请查看错误报告

https://bugreports.qt.io/browse/QTBUG-68350

QT QML翻译重新翻译

1 个答案: