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  1. Qt
  2. QTBUG-133549

Qt UI stops redrawing on Android

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Details

    • Android
    • 0bbdccb30 (dev), 7a286bd7d (6.10), 512d3f9a1 (6.9), fc150b9f3 (tqtc/lts-6.8)
    • 2025wk08s1QtforAndroid, 2025wk10s1QtforAndroid, 2025wk12s1QtforAndroid, 2025wk22s1-2QtforAndroid, 2025wk26s2QtforAndroid, 2025wk28s2QtforAndroid

    Description

      Hello. Qt 6.8.2 on Android is basically unusable, because there is a bug when all UI repaints stops. It happens with different widgets, but the easiest way to reproduce it is to build your own example with QLineEdits: https://github.com/qt/qtbase/tree/6.8.2/examples/widgets/widgets/lineedits , and try to input text in first one QLineEdit, as soon as Android keyboard opens - UI stops repainting. I checked on Android 14. You need to look at it & fix it ASAP.

      Attachments

        1. android-build-debug.apk
          14.24 MB
        2. QTBUG-133549_qt680_android15.mp4
          2.74 MB
        3. QTBUG-133549_REPRO.mp4
          1.46 MB
        4. QTBUG-133549_REPRO2.mp4
          1.10 MB
        5. video_2025-02-22_16-12-44.mp4
          2.03 MB

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-128794 QLineEdit in Android - no text visual

          • 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; Flaky tests; 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
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-137401 QScrollBar attached to QScrollArea visibility is not updated correctly

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Open
          mentioned in

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            People

              vestbo Tor Arne Vestbø
              graullon Sergey Hrushak
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              Dates

                Created:
                Updated:
                Resolved: