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  1. Qt
  2. QTBUG-64130

MouseArea Freezes when device is rotated during mouse down/pressed

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P1: Critical P1: Critical
    • None
    • 5.9.1, 5.9.2
    • Quick: Mouse Touch and Tablet input
    • None
    • iOS and Android (OS version doesn't seem to matter)
    • iOS/tvOS/watchOS

      This is seen when using a QML MouseArea to capture the mouse/touch events using onPressed and onPositionChanged.

      In the attached example the mouse area is used to draw on a canvas as this is the scenario in which it was first seen.

      On a tablet running the app use a finger to activate the MouseArea functionality drawing on the canvas and continue to do so (i.e. keep finger pressed on the screen) while rotating the device.

      Once the screen has rotated the mouse area will stop functioning and it is no longer possible to draw on the canvas.

      Note: I have found that it is possible to work around this by adding an Item element inside the MouseArea. See the main.qml in the example and uncomment the Item at the end of the file.

       

        1. MouseAreaFreezeBug.zip
          6 kB
        For Gerrit Dashboard: QTBUG-64130
        # Subject Branch Project Status CR V
        240670,2 WIP attempt to detect screen rotation, prepare to reset state dev qt/qtdeclarative Status: NEW -2 0
        256496,1 WIP debug screen orientation change on Android dev qt/qtbase Status: NEW -2 0
        240672,1 WIP debug screen orientation changes 5.12 qt/qtbase Status: ABANDONED -2 0

            srutledg Shawn Rutledge
            rogerio Rogerio Nicolau
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              Created:
              Updated:

                There are 2 open Gerrit changes