QListView 和 QStackedWidget 配合使用

新建三个DIALOG ，在MAINWINDOW 上用QCREATER 拖一个stackedwidget ，把里面的page全删除。默认有两个的。否则addwidget()会从第三个开始添加。
stackedWidget = new QStackedWidget(this);    
stackedWidget = ui->stackedWidget;    
stackedWidget->setFrameStyle(QFrame::Panel);
    basicInfo = new BasicInformation;    
subsidence = new Subsidence;  
foundation = new Foundation;
    stackedWidget->addWidget(basicInfo);  
// subsidence  规范法  
subsidence = new Subsidence(this);

    stackedWidget->addWidget(subsidence);
    //foundation  单桩承载力
    stackedWidget->addWidget(foundation);
    stackedWidget->setCurrentWidget(subsidence);
void MainWindow::on_listView_clicked(const QModelIndex &index){    
QString listString = index.data(Qt::DisplayRole).toString();  
if (listString.contains("基本信息")){      
stackedWidget->setCurrentWidget(basicInfo);    }  
if (listString.contains("规范法")){      //沉降计算        
stackedWidget->setCurrentWidget(subsidence);    }  
if (listString.contains("单桩承载力")){        
stackedWidget->setCurrentWidget(foundation);    }
}