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This article introduces in detail the use of the Qt language master tool to realize multi-national language switching of Qt programs. For example, create a new interface, pro parameters, update translation , QT prophet translation language , translate Chinese, translate English, release translation, core code, h source code, cpp source code, demonstration effect and other operations.
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QT multilingual switching directory
4 QT Prophet translation language
1 New interface
2 pro parameters
pro file to add language file
TRANSLATIONS = LanguageChinese.ts \
LanguageEnglish.ts3 Update translations
QT Prophet update translation
4 QT Prophet translation language
5 Translate Chinese
Open the translation file -> target language Chinese -> write both the original text and the translation in Chinese -> confirm all -> save
6 translate English
Open the translation file -> target language Chinese -> write both the original text and the translation in Chinese -> confirm all -> save
7 Post translation
8 core code
8.1 .h source code
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QFile>
#include <QDebug>
#include <QTranslator>
QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = nullptr);
~MainWindow();
private slots:
void on_pushButton_clicked();
void on_pushButton_2_clicked();
private:
Ui::MainWindow *ui;
QString strFile;
QTranslator ch;
QTranslator en;
};
#endif // MAINWINDOW_H
8.2 .cpp source code
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
strFile = "E:/QT/Creator/QLanguage/";
//加载 翻译文件
ch.load(strFile + "LanguageChinese.qm");
en.load(strFile + "LanguageEnglish.qm");
}
MainWindow::~MainWindow()
{
delete ui;
}
//中文
void MainWindow::on_pushButton_clicked()
{
qApp->installTranslator(&ch);
ui->retranslateUi(this);
}
//英文
void MainWindow::on_pushButton_2_clicked()
{
qApp->installTranslator(&en);
ui->retranslateUi(this);
}
9 demo effect
10 other methods
You can also use ini files and xml files to achieve the same function, and create two new fields to obtain different fields through global judgment to achieve multi-language switching.