Hi all,

I face a problem in Qt, QDeclarativeView can not delete after constructing via pointer. It throws an exception: Segmentation fault.
Could you tell me a solution

This my code:

Qt Code: 
  1. MainWindow::MainWindow()
  2. {
  3.         m_pView = QDeclarativeView();                             // CONSTRUCT NEW QtDeclarativeView
  4.         m_pView->setSource("qrc:/UI/main.qml");      
  5.  
  6.         setCentralWidget(m_pView);
  7.         setFocus();
  8.         centralWidget()->setFocus();
  9. }
  10.  
  11.  
  12. MainWindow::ChangeView()
  13. {
  14.  
  15.         QDeclarativeView* pOldView = m_pView;        
  16.  
  17.         m_pView = QDeclarativeView();
  18.         m_pView->setSource("qrc:/UI/main.qml");      
  19.  
  20.         setCentralWidget(m_pView);
  21.         setFocus();
  22.         centralWidget()->setFocus();    
  23.  
  24.         delete pOldView;                                //  DESTROY THE POINTER;  EXCEPTION HERE
  25. }
  26.  
  27. main()
  28. {
  29.      MainWindow w;
  30.  
  31.      w.show();
  32.  
  33.      w.ChangeView();
  34. }
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