Multi interface switching in one UI of QT

QT Many interface exchanges

Environmental Science ：VS2019+QT_tools

I checked many great God's posts on the Internet , Firstly, the methods of multi interface switching are summarized as follows ：
1. Can pass QT Designer Add Containers Control Stacked Widget To achieve the same UI Page switching in , You can use the right mouse button or code to increase or decrease pages
2. You can create multiple UI file , Then set and select one of the displays , Other hidden implementations are different UI Interface switching , This method csdn There are many posts on , I won't go into details here .
3. Another way is to combine the above two methods , Insert... In the main window at the same time Stacked Widget, And create multiple UI file , then UI Files are added to the main window as spaces Stacked Widget in , Realize the interface switching in the same window , The advantage of this method is that different UI Editing without too much confusion , More efficient .

1. Main window insert Stacked Widget

VS Find your main window in Ui file , Double click to open and enter Designer

When finished, select the form above -> Look at the code -> preservation -> close

// The call example is as follows ：
 ui.stackedWidget->addWidget(A);
 ui.stackedWidget->addWidget(B);

2. Innovate multiple Ui file

Right click on the item , Add new item

Ui Attribute selection QWidget

After successful creation, there will be more in the solution 3 File ：.cpp、 .h、 .ui

3. Multi interface switching

main window .h

#pragma once

#include <QtWidgets/QMainWindow>
#include"calibration.h"// Two new UI
#include"camerror.h"
#include "ui_Cameraparameter.h"

class Cameraparameter : public QMainWindow
{
    
    Q_OBJECT

public:
    Cameraparameter(QWidget *parent = nullptr);
    ~Cameraparameter();

private:
    Ui::CameraparameterClass ui;
    calibration* ui_cal;
    camerror* ui_error;


private slots:
    void on_pushButton_clicked();
    void on_pushButton_2_clicked();
};

main window .cpp

#include "Cameraparameter.h"

Cameraparameter::Cameraparameter(QWidget *parent)
    : QMainWindow(parent)
{
    
    ui.setupUi(this);

    // Apply for two new interfaces 
    ui_cal = new calibration;
    ui_error = new camerror;

    // Add interface to stackedWidget Control 
    ui.stackedWidget->addWidget(ui_cal);
    ui.stackedWidget->addWidget(ui_error);

}

Cameraparameter::~Cameraparameter()
{
    }

void Cameraparameter::on_pushButton_clicked()
{
    
    ui.stackedWidget->setCurrentIndex(2);
}
void Cameraparameter::on_pushButton_2_clicked()
{
    
    ui.stackedWidget->setCurrentIndex(3);
}

Effect display ：