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    autoLayout.h文件

    1. #ifndef AUTOLAYOUT_H
    2. #define AUTOLAYOUT_H
    4. #include <QMainWindow>
    5. #include "window1.h"
    6. #include "window2.h"
    7. #include "window3.h"
    9. namespace Ui {
    10. class AutoLayout;
    11. }
    13. class AutoLayout : public QMainWindow
    14. {
    15.     Q_OBJECT
    17. public:
    18.     explicit AutoLayout(QWidget *parent = 0);
    20.     void ChooseWidgets();
    22.     int firstIndex = NULL;
    23.     ~AutoLayout();
    25. private:
    26.     Ui::AutoLayout *ui;
    28.     window1 * W1;
    29.     window2 * W2;
    30.     window3 * W3;
    31. };
    33. #endif // AUTOLAYOUT_H

    autoLayout.cpp文件

    1. #include "autolayout.h"
    2. #include "ui_autolayout.h"
    3. #include <QToolBar>
    4. #include <QDebug>
    6. AutoLayout::AutoLayout(QWidget *parent) :
    7.     QMainWindow(parent),
    8.     ui(new Ui::AutoLayout)
    9. {
    10.     ui->setupUi(this);
    12.     window1 *W1 = new window1(this);
    13.     window2 *W2 = new window2(this);
    14.     window3 *W3 = new window3(this);
    15.     ui->stackedWidget->addWidget(W1);
    16.     ui->stackedWidget->addWidget(W2);
    17.     ui->stackedWidget->addWidget(W3);
    18.     ui->stackedWidget->setCurrentWidget(W1);
    19.     //获取当前页面的序号
    20.     firstIndex = ui->stackedWidget->currentIndex();
    22.     QAction* newItemToolBar = new QAction(tr("界面1"),this);
    23.     QAction* newItemToolBar2 = new QAction(tr("界面2"),this);
    24.     QAction* newItemToolBar3 = new QAction(tr("界面3"),this);
    25.     ui->toolBar->addAction(newItemToolBar);
    26.     ui->toolBar->addSeparator(); // 添加分割线
    27.     ui->toolBar->addAction(newItemToolBar2);
    28.     ui->toolBar->addSeparator();
    29.     ui->toolBar->addAction(newItemToolBar3);
    32.     connect(newItemToolBar, &QAction::triggered, this, [=](){
    33.         ui->stackedWidget->setCurrentIndex(2);
    34.     });
    35.     connect(newItemToolBar2, &QAction::triggered, this, [=](){
    36.         ui->stackedWidget->setCurrentIndex(3);
    37.     });
    38.     connect(newItemToolBar3, &QAction::triggered, this, [=](){
    39.         ui->stackedWidget->setCurrentIndex(4);
    40.     });
    41. }
    43. AutoLayout::~AutoLayout()
    44. {
    45.     delete ui;
    46. }

    image.png

    window1文件
    image.png

    window2文件
    image.png

    window3文件
    image.png