QT 多页面切换之QTabWidget

QT 多页面切换之QTabWidget
[cpp] view plain copy print ?
1. //mydialog.h
2. #ifndef MYDIALOG_H
3. #define MYDIALOG_H
4. #include <QDialog>
5. class QTabWidget;
6. class MyDialog : public QDialog
7. {
8. Q_OBJECT
9. public:
10. explicit MyDialog(QWidget *parent = 0);
11. signals:
12. public slots:
13. private:
14. QTabWidget *tabWidget;
15. };
16. #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] view plain copy print ?
1. //mydialog.cpp
2. #include "mydialog.h"
3. #include <QtGui/QTabWidget>
4. #include <QtGui/QHBoxLayout>
5. #include <QtGui/QVBoxLayout>
6. #include <QtGui/QLabel>
7. #include <QtGui/QLineEdit>
8. #include <QtGui/QPushButton>
9. #include <QtGui/QWidget>
10. #include <QtGui/QIcon>
11. MyDialog::MyDialog(QWidget *parent) :
12. QDialog(parent)
13. {
14. tabWidget = new QTabWidget();
16. //新建第一个页面的部件
17. QWidget *widget = new QWidget();
18. QLineEdit *lineEdit = new QLineEdit();
19. QPushButton *pushButton = new QPushButton("Test");
20. QVBoxLayout *vLayout = new QVBoxLayout();
21. vLayout->addWidget(lineEdit);
22. vLayout->addWidget(pushButton);
23. widget->setLayout(vLayout);
26. //新建第二个页面的部件
27. QLabel *label = new QLabel("Hello Qt");
29. //新建第三个页面的部件
30. QPushButton *pushButton3 = new QPushButton("Click Me");
32. //向QTabWidget中添加第一个页面
33. QIcon icon1(":/new/icon/images/1.ico");
34. tabWidget->addTab(widget, icon1, "Tab1");
36. //向QTabWidget中添加第二个页面
37. QIcon icon2(":/new/icon/images/2.ico");
38. tabWidget->addTab(label, icon2, "Tab2");
40. //向QTabWidget中添加第三个页面
41. QIcon icon3(":/new/icon/images/3.ico");
42. tabWidget->addTab(pushButton3, icon3, "Tab3");
44. QHBoxLayout *layout = new QHBoxLayout();
45. layout->addWidget(tabWidget);
47. this->setLayout(layout);
48. this->resize(300, 100);
49. this->setWindowTitle("QTabWidgetDemo");
50. }
```
//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] view plain copy print ?
1. //main.cpp
2. #include <QtGui/QApplication>
3. #include "mydialog.h"
4. int main(int argc, char *argv[])
5. {
6. QApplication a(argc, argv);
7. MyDialog dialog;
8. dialog.show();
9. return a.exec();
10. }
```
//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：
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原文地址：https://www.cnblogs.com/xj626852095/p/3648120.html