Qt:QtQuick:使用Qt静态库无法找到qml

浅浅的花香味﹌ 2022-09-29 14:53 356阅读 0赞

# 简介 #

调试运行提示

QQmlApplicationEngine failed to load component qrc:/main.qml:2 module "QtQuick.Controls" is not installed qrc:/main.qml:1 module "QtQuick" is not installed qrc:/main.qml:2 module "QtQuick.Controls" is not installed

# 解决方案 #

看了几篇文章解决方案都不优雅，提供一个自认为比较好的方法，告诉程序去哪里加载qml

int main(int argc, char *argv[])
    {
        QGuiApplication app(argc, argv);
        QQmlApplicationEngine engine;
        engine.addImportPath("C:\\Qt\\Qt5.6.2\\5.6\\static-vs2015-qt5.6.2\\qml");
        engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    
        return app.exec();
    }

# 参考方案 #

还有一种是这样导入，在qml文件夹中找到模块的描述文件qmldir ，根据里面的module classname导入

![这里写图片描述][SouthEast]

Q_IMPORT_PLUGIN(classname) //使用类名
    qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_module().instance())->registerTypes("QtQuick"); //使用带类名的函数和 模块名字符串
    
     qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance()) ->initializeEngine( &engine, "QtQuick");

int main(int argc, char *argv[])
    {
        QGuiApplication app(argc, argv);
    
        QQmlApplicationEngine engine;
    
    
        Q_IMPORT_PLUGIN(QtQuick2Plugin) //使用类名
        Q_IMPORT_PLUGIN(QtQuickControlsPlugin) //使用类名
        Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
        Q_IMPORT_PLUGIN(QtQuickLayoutsPlugin)
        Q_IMPORT_PLUGIN(QtQuick2WindowPlugin)
    
        ////////
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance())->registerTypes("QtQuick"); //使用带类名的函数和 模块名字符串
    
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance()) ->initializeEngine( &engine, "QtQuick"); //使用带类名的函数和 模块名字符串
    
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls"); //使用带类名的函数和 模块名字符串
    
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin.instance()) ->initializeEngine( &engine, "QtQuick.Controls"); //使用带类名的函数和 模块名字符串
    
    
    
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance())->registerTypes("QtQuick");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls.Private");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls.Styles");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->registerTypes("QtQuick.Layouts");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2WindowPlugin().instance()) ->registerTypes("QtQuick.Window.2");
    
    
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance()) ->initializeEngine( &engine, "QtQuick");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->initializeEngine( &engine, "QtQuick.Controls");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Layouts");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Layouts");
        qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2WindowPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Window.2");
    
    
    
        //engine.addImportPath("C:\\Qt\\Qt5.6.2\\5.6\\static-vs2015-qt5.6.2\\qml");
    
        engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    
        return app.exec();
    }

# 引用 #

> [http://doc.qt.io/qt-5/qtqml-syntax-imports.html\#qml-import-path][http_doc.qt.io_qt-5_qtqml-syntax-imports.html_qml-import-path]  
> [http://tieba.baidu.com/p/3537364638?share=9105&fr=share][http_tieba.baidu.com_p_3537364638_share_9105_fr_share]

[SouthEast]: /images/20220708/e3f3480706a140ca831d3388ef979103.png
[http_doc.qt.io_qt-5_qtqml-syntax-imports.html_qml-import-path]: http://doc.qt.io/qt-5/qtqml-syntax-imports.html#qml-import-path
[http_tieba.baidu.com_p_3537364638_share_9105_fr_share]: http://tieba.baidu.com/p/3537364638?share=9105&fr=share