symbian Folder selection dialog (转)

From Forum Nokia Wiki

Here is an example on how to implement a Select folder dialog for S60 3rd edition, with common dialog classes.

Source code

TFileName folder;
 
 // Create select memory dialog
 CAknMemorySelectionDialog* memDlg = 
             CAknMemorySelectionDialog::NewL(ECFDDialogTypeCopy, ETrue);
 CAknMemorySelectionDialog::TMemory memory = 
            CAknMemorySelectionDialog::EPhoneMemory;
 
 // Create select folder dialog
 CAknFileSelectionDialog* dlg = 
             CAknFileSelectionDialog::NewL(ECFDDialogTypeCopy);
 
         // some dialog customizations:
 dlg->SetTitleL(_L("Select folder"));
 dlg->SetRightSoftkeyRootFolderL(_L("Back")); // for root folder
 
         TBool result = EFalse;
 
 for (;;)
 {
  if ( memDlg->ExecuteL(memory) == CAknFileSelectionDialog::ERightSoftkey )
  {
   // cancel selection
   break;
  }
 
  if (memory==CAknMemorySelectionDialog::EMemoryCard)
  {
   folder = PathInfo::MemoryCardRootPath();
  }
  else
  {
   folder = PathInfo::PhoneMemoryRootPath();
  }
 
  if (dlg->ExecuteL(folder))
  {
                          // we got our folder and finish loop
                          result = ETrue;
   break;
  }
 
 }
 
 delete memDlg;
 delete dlg;