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  1. Qt
  2. QTBUG-90959

After first call to QWindow:winId() screen updates(?) do not work correctly

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.0.0
    • GUI: Window management
    • None
    • Android

    Description

      When method QWindow::winId() is called for the first time the QGuiApplicationPrivate::window_list is propagated with windows (widgets). Initially it holds only the main window.  This behavior is common for all platforms.  However, on Android it looks like it somehow spoils  window repainting.  
       
      It can be observed on the attached movie.  Before calling mentioned function the QGraphicsView is refreshed  properly during scroll.  After the call, the first repaint succeeds, but all the next do not. Clicking on a different UI element (checkbox) updates also QGraphicsView contents.

      On Linux desktop works fine.

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          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-63275 Android QScreen::grabWindow(0) & sample code Screenshot::shootScreen() fails on Android

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              qtandroidteam Qt Android Team
              piotrmi Piotr Mikolajczyk
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              Dates

                Created:
                Updated:

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