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Add QmlLanguage
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‎QmlLanguage/QmlLanguage.cpp

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/*!
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*@file QmlLanguage.cpp
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*@brief 语言切换
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*@version 1.0
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*@section LICENSE Copyright (C) 2003-2103 CamelSoft Corporation
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*@author zhengtianzuo
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*/
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#include "QmlLanguage.h"
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QmlLanguage::QmlLanguage(QGuiApplication &app, QQmlApplicationEngine& engine)
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{
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m_app = &app;
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m_engine = &engine;
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}
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void QmlLanguage::setLanguage(int nLanguage)
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{
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QTranslator translator;
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if (nLanguage == 0)
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{
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translator.load(":/en_US.qm");
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}else{
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translator.load(":/zh_CN.qm");
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}
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m_app->installTranslator(&translator);
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m_engine->retranslate();
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}

‎QmlLanguage/QmlLanguage.h

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/*!
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*@file QmlLanguage.h
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*@brief 语言切换
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*@version 1.0
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*@section LICENSE Copyright (C) 2003-2103 CamelSoft Corporation
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*@author zhengtianzuo
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*/
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#pragma once
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#include <QObject>
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#include <QTranslator>
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#include <QGuiApplication>
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#include <QQmlApplicationEngine>
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class QmlLanguage : public QObject
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{
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Q_OBJECT
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public:
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QmlLanguage(QGuiApplication& app, QQmlApplicationEngine &engine);
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Q_INVOKABLE void setLanguage(int nLanguage);
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private:
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QGuiApplication *m_app;
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QQmlApplicationEngine *m_engine;
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};

‎QmlLanguage/QmlLanguage.pro

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#-------------------------------------------------
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#
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# Copyright (C) 2003-2103 CamelSoft Corporation
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#
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#-------------------------------------------------
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QT += qml quick
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CONFIG += c++11
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SOURCES += main.cpp \
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QmlLanguage.cpp
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RESOURCES += qml.qrc
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TRANSLATIONS = zh_CN.ts en_US.ts
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HEADERS += \
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QmlLanguage.h

‎QmlLanguage/en_US.qm

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‎QmlLanguage/en_US.ts

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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE TS>
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<TS version="2.1" language="en">
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<context>
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<name>main</name>
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<message>
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<location filename="main.qml" line="15"/>
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<source>Dialog</source>
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<translation>Dialog</translation>
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</message>
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<message>
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<location filename="main.qml" line="29"/>
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<source>TextLabel</source>
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<translation>TextLabel</translation>
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</message>
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<message>
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<location filename="main.qml" line="36"/>
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<source>PushButton</source>
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<translation>PushButton</translation>
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</message>
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<message>
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<location filename="main.qml" line="45"/>
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<source>English</source>
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<translation></translation>
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</message>
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<message>
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<location filename="main.qml" line="49"/>
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<source>简体中文</source>
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<translation></translation>
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</message>
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</context>
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</TS>

‎QmlLanguage/main.cpp

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/*!
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*@file main.cpp
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*@brief 程序主文件
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*@version 1.0
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*@section LICENSE Copyright (C) 2003-2103 CamelSoft Corporation
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*@author zhengtianzuo
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*/
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#include <QGuiApplication>
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#include <QQmlApplicationEngine>
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#include <QQmlContext>
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#include "QmlLanguage.h"
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int main(int argc, char *argv[])
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{
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QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
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QGuiApplication app(argc, argv);
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QQmlApplicationEngine engine;
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QmlLanguage qmlLanguage(app, engine);
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engine.rootContext()->setContextProperty("qmlLanguage", &qmlLanguage);
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engine.load(QUrl(QLatin1String("qrc:/main.qml")));
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return app.exec();
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}

‎QmlLanguage/main.qml

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/*!
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*@file main.qml
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*@brief 主文件
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*@version 1.0
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*@section LICENSE Copyright (C) 2003-2103 CamelSoft Corporation
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*@author zhengtianzuo
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*/
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import QtQuick 2.7
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import QtQuick.Controls 2.0
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ApplicationWindow {
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visible: true
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width: 400
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height: 300
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title: qsTr("Dialog")
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Column{
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width: parent.width
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anchors.horizontalCenter: parent.horizontalCenter
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anchors.verticalCenter: parent.verticalCenter
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anchors.verticalCenterOffset: 20
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Text {
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id: textLabel
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height: 24
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width: 120
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anchors.horizontalCenter: parent.horizontalCenter
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horizontalAlignment: Text.AlignHCenter
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text: qsTr("TextLabel")
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}
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Button{
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id: pushButton
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height: 24
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width: 120
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anchors.horizontalCenter: parent.horizontalCenter
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text: qsTr("PushButton")
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}
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Column{
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anchors.right: parent.right
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anchors.rightMargin: 20
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RadioButton{
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id: enChk
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text: qsTr("English")
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checked: true
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onClicked: {
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qmlLanguage.setLanguage(0);
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}
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}
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RadioButton{
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id: cnCHK
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text: qsTr("简体中文")
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onClicked: {
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qmlLanguage.setLanguage(1);
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}
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}
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}
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}
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}

‎QmlLanguage/qml.qrc

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<RCC>
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<qresource prefix="/">
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<file>main.qml</file>
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<file>zh_CN.qm</file>
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<file>en_US.qm</file>
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</qresource>
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</RCC>

‎QmlLanguage/show.gif

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‎QmlLanguage/zh_CN.qm

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‎QmlLanguage/zh_CN.ts

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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE TS>
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<TS version="2.1" language="zh_CN">
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<context>
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<name>main</name>
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<message>
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<location filename="main.qml" line="15"/>
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<source>Dialog</source>
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<translation>对话框</translation>
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</message>
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<message>
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<location filename="main.qml" line="29"/>
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<source>TextLabel</source>
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<translation>文本</translation>
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</message>
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<message>
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<location filename="main.qml" line="36"/>
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<source>PushButton</source>
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<translation>按钮</translation>
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</message>
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<message>
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<location filename="main.qml" line="45"/>
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<source>English</source>
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<translation></translation>
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</message>
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<message>
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<location filename="main.qml" line="49"/>
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<source>简体中文</source>
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<translation></translation>
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</message>
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</context>
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</TS>

‎README.md

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![](https://github.com/zhengtianzuo/QtQuickExamples/blob/master/QmlPageNavigation/show.gif?raw=true)
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QmlLanguage: Qml动态语言切换
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![](https://github.com/zhengtianzuo/QtQuickExamples/blob/master/QmlLanguage/show.gif?raw=true)
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