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  1. Qt
  2. QTBUG-42058

QML Camera crash in QuickWidget or QuickView container on Android

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Details

    • Android

    Description

      Given: QML Camera component with viewfinder in QQuickWidget container on Android / Qt 5.4.0 beta.

      Crash: When the quickwidget container is deleted the app crashes. My guess is that the camera’s viewfinder still has a thread running which does not get terminated properly before the container deletes the qml engine.

      Note: The same crash happens with a QuickView container instead of a QuickWidget container both in Qt 5.4 beta and Qt 5.3.

      Related Bug: The QuickWidget is not displayed properly with Qt 5.4. It is occluded by the main window even though the main window is set to be hidden.

      I prepared a test case which is attached to this bug report as a zip archive.

      I also prepared a page with a detailed description of the problem with error logs and screen shots here:

      http://open-terrain.org/index.php/Pong/October20th2014Qt54BetaTesting

      Attachments

        1. camcrash.zip
          3 kB
          Stefan Roettger

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-41467 QQuickWidget UI Freeze on QML load

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-42425 freezes on Android using QQuickWidget and popup-widgets

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              stromme Christian
              roettger Stefan Roettger
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