QT 多页面切换之QTabWidget

[cpp]
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//mydialog.h
#ifndef MYDIALOG_H
#define MYDIALOG_H

#include <QDialog>
class QTabWidget;
class MyDialog : public QDialog
{
Q_OBJECT
public:
explicit MyDialog(QWidget *parent = 0);
signals:
public slots:
private:
QTabWidget *tabWidget;
};
#endif // MYDIALOG_H

//mydialog.h
#ifndef MYDIALOG_H
#define MYDIALOG_H
#include <QDialog>
class QTabWidget;
class MyDialog : public QDialog
{
Q_OBJECT
public:
explicit MyDialog(QWidget *parent = 0);
signals:
public slots:
private:
QTabWidget *tabWidget;
};
#endif // MYDIALOG_H

[cpp]
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//mydialog.cpp
#include "mydialog.h"
#include <QtGui/QTabWidget>

#include <QtGui/QHBoxLayout>
#include <QtGui/QVBoxLayout>

#include <QtGui/QLabel>
#include <QtGui/QLineEdit>

#include <QtGui/QPushButton>
#include <QtGui/QWidget>

#include <QtGui/QIcon>
MyDialog::MyDialog(QWidget *parent) :
QDialog(parent)
{
tabWidget = new QTabWidget();

//新建第一个页面的部件
QWidget *widget = new QWidget();
QLineEdit *lineEdit = new QLineEdit();
QPushButton *pushButton = new QPushButton("Test");
QVBoxLayout *vLayout = new QVBoxLayout();
vLayout->addWidget(lineEdit);
vLayout->addWidget(pushButton);
widget->setLayout(vLayout);

//新建第二个页面的部件
QLabel *label = new QLabel("Hello Qt");

//新建第三个页面的部件
QPushButton *pushButton3 = new QPushButton("Click Me");

//向QTabWidget中添加第一个页面
QIcon icon1(":/new/icon/images/1.ico");
tabWidget->addTab(widget, icon1, "Tab1");

//向QTabWidget中添加第二个页面
QIcon icon2(":/new/icon/images/2.ico");
tabWidget->addTab(label, icon2, "Tab2");

//向QTabWidget中添加第三个页面
QIcon icon3(":/new/icon/images/3.ico");
tabWidget->addTab(pushButton3, icon3, "Tab3");

QHBoxLayout *layout = new QHBoxLayout();
layout->addWidget(tabWidget);

this->setLayout(layout);
this->resize(300, 100);
this->setWindowTitle("QTabWidgetDemo");
}

//mydialog.cpp
#include "mydialog.h"
#include <QtGui/QTabWidget>
#include <QtGui/QHBoxLayout>
#include <QtGui/QVBoxLayout>
#include <QtGui/QLabel>
#include <QtGui/QLineEdit>
#include <QtGui/QPushButton>
#include <QtGui/QWidget>
#include <QtGui/QIcon>
MyDialog::MyDialog(QWidget *parent) :
QDialog(parent)
{
tabWidget = new QTabWidget();

//新建第一个页面的部件
QWidget *widget = new QWidget();
QLineEdit *lineEdit = new QLineEdit();
QPushButton *pushButton = new QPushButton("Test");
QVBoxLayout *vLayout = new QVBoxLayout();
vLayout->addWidget(lineEdit);
vLayout->addWidget(pushButton);
widget->setLayout(vLayout);

//新建第二个页面的部件
QLabel *label = new QLabel("Hello Qt");

//新建第三个页面的部件
QPushButton *pushButton3 = new QPushButton("Click Me");

//向QTabWidget中添加第一个页面
QIcon icon1(":/new/icon/images/1.ico");
tabWidget->addTab(widget, icon1, "Tab1");

//向QTabWidget中添加第二个页面
QIcon icon2(":/new/icon/images/2.ico");
tabWidget->addTab(label, icon2, "Tab2");

//向QTabWidget中添加第三个页面
QIcon icon3(":/new/icon/images/3.ico");
tabWidget->addTab(pushButton3, icon3, "Tab3");

QHBoxLayout *layout = new QHBoxLayout();
layout->addWidget(tabWidget);

this->setLayout(layout);
this->resize(300, 100);
this->setWindowTitle("QTabWidgetDemo");
}

[cpp]
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//main.cpp
#include <QtGui/QApplication>

#include "mydialog.h"

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MyDialog dialog;
dialog.show();
return a.exec();
}

//main.cpp
#include <QtGui/QApplication>
#include "mydialog.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MyDialog dialog;
dialog.show();
return a.exec();
}

资源文件截图：



程序运行截图：