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  1. Qt
  2. QTBUG-52955

Regression: ItemDelegate with overriden contentItem in ListView fails to create on Android

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Details

    • Bug
    • Status: Closed
    • P2: Important
    • Resolution: Duplicate
    • 5.7.0 Beta
    • None
    • None
    • Android 4.4.4, 5.1, 6.0

    Description

      If I use ItemDelegate with custom contentItem as a delegate in ListView, on scrolling creating some items fail on Android (on Linux it works fine). I also see the following errors:

      :-1 ((null)): <Unknown File>: QML VisualDataModel: Error creating delegate
      

      If I import QtQml.Models, error mention DelegateModel instead of VisualDataModel.

      Test program:

      import QtQuick 2.6
      import QtQuick.Controls 2.0
      
      ApplicationWindow {
          visible: true
          width: 640
          height: 480
      
          ListView {
              anchors.fill: parent
              model: 10000
              delegate: ItemDelegate {
                  contentItem: Label {
                      text: "Item " + model.index
                  }
              }
          }
      }
      

      To reproduce, just scroll the list.

      I don't see such errors on Qt 5.6.

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              qt.team.quick.subscriptions Qt Quick and Widgets Team
              krnekit Nikita Krupenko
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              Dates

                Created:
                Updated:
                Resolved:

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