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  1. Qt
  2. QTBUG-52643

Dragging threshold on high DPI touch devices is too small

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Details

    • iOS/tvOS/watchOS
    • ed66cf8a0 (dev), 091ce6477 (6.7)

    Description

      When using nested Flickables, wrong Flickable might be dragged due to some devices having very high DPI displays.

      Qt uses the default value of 10 for startDragDistance stylehint for Android and iOS devices. This should probably be scaled with DPI.

      Try running attached project on such device and try to flick vertically. Sometimes just horizontal flicking occurs when you don't intend to do it.

      Setting startDragDistance higher reduces this.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-56075 QML Flickable: high-precision trackpad scrolling is too fast

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-52643
          # Subject Branch Project Status CR V
          91242,15 Add flicking behavior hints to platform integration and theme dev qt/qtbase Status: MERGED +2 0
          548029,3 Revert default FlickDeceleration to 1500 dev qt/qtbase Status: MERGED +2 0
          548425,2 Revert default FlickDeceleration to 1500 6.7 qt/qtbase Status: MERGED +2 0

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            People

              srutledg Shawn Rutledge
              poikelin Joni Poikelin
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              Dates

                Created:
                Updated:
                Resolved:

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