運行截圖如下：

源碼如下：

widget.h

#ifndef WIDGET_H #define WIDGET_H#include <QWidget>namespace Ui { class Widget; }class Widget : public QWidget {Q_OBJECTpublic:explicit Widget(QWidget *parent = 0);~Widget();signals:void sendMsg();public slots:void qmlSlot();private:Ui::Widget *ui; };#endif // WIDGET_H

main.cpp

#include "widget.h" #include <QApplication>int main(int argc, char *argv[]) {QApplication a(argc, argv);Widget w;w.show();return a.exec(); }

widget.cpp

#include "widget.h" #include "ui_widget.h" #include <QUrl> #include <QMetaObject> #include <QDebug> #include <QMetaObject>Widget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget) {ui->setupUi(this);ui->quickWidget->setSource(QUrl("qrc:/test.qml"));QObject *pRoot = (QObject*)ui->quickWidget->rootObject();Q_ASSERT(pRoot);connect(pRoot, SIGNAL(qmlSignal()), this, SLOT(qmlSlot()));connect(ui->pushButton, SIGNAL(clicked(bool)), pRoot, SIGNAL(cSignal()));const QMetaObject *metaObject=pRoot->metaObject();const QMetaObject *thisObject=this->metaObject(); }Widget::~Widget() {delete ui; }void Widget::qmlSlot() {ui->pushButton->setText("qmlSlot called!"); }

test.qml

import QtQuick 2.0Rectangle {id: rootcolor: "green"Text {id: myTexttext: qsTr("hello")font.pixelSize: 70color: "red"anchors.centerIn: parent}signal qmlSignalsignal cSignalMouseArea {anchors.fill: parentonClicked: qmlSignal()}onCSignal: {root.color = "yellow"myText.text = "how are you?"} }

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總結

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