June 22, 2011

kathy kathy
Lab Rat
27 posts

C++: how to call QML ListView selected item object?


My QML file has a listview which use VisualItemModel to display each item (each item is a qml page). In my C++, how to get the selected object? In another word, how to get the selected item in C++?

My list model:

  1. VisualItemModel {
  2.     property int itemwidth: 0
  3.     property int itemheight: 0
  4.     page1 {
  5.         id: p1
  6.         width: itemwidth
  7.         height: itemheight
  8.     }
  9.     page2 {
  10.         id: 2
  11.         width: itemwidth
  12.         height: itemheight
  13.     }
  14.     page3 {
  15.         id: p3
  16.         width: itemwidth
  17.         height: itemheight
  18.     }
  19. }

In the C++ code:

  1. QObject *rootObject = dynamic_cast<QObject*>(viewer.rootObject());
  2. QObject *lv = rootObject->findChild<QObject*>("objectMyListView");

If I selected p1, then how to get p1 object? The page1 / page2 / page3 are 3 qml files in the same directory.

1 reply

June 22, 2011

aalpert aalpert
Lab Rat
41 posts


But normally you want QML to be calling things from C++, not the other way around. Perhaps you could expose the C++ functionality as a function, and call that function from QML with the currently selected item as an argument?

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