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  1. Qt
  2. QTBUG-57797

Android: Qt Quick Controls 2 button autorepeat goes into infinite loop if disabled while pressed

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.9.0 Beta 1
    • 5.8.0 Beta, 5.8.0 RC
    • Quick: Controls 2
    • None
    • 16389a1f247f14965ed0286e4fdab6bc2b1621bc

    Description

      A button from QtQuick.Controls 2 with autoRepeat on Android never stops generating click events if it becomes disabled while being pressed. I noticed this bug in Qt 5.8-beta and 5.8-rc. It used to work well with Qt 5.6 on Android and it works well with Qt 5.8-rc on Linux.

      Here is a small example to reproduce the bug, press the Increment button and release it after it is disabled. It will go into an infinite loop.

      import QtQuick 2.0
import QtQuick.Controls 2.0

ApplicationWindow {
    property int count

    visible: true

    Column {
        Button {
            enabled: count > 0
            text: "Decrement"
            autoRepeat: true
            onPressed: --count
        }
        Button {
            enabled: count < 10
            text: "Increment"
            autoRepeat: true
            onPressed: ++count
        }
        Label {
            text: count
        }
    }
}

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        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59299 Lost clicks on Android Qml applications using Map

          • 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
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59098 StackView Blocking UngrabMouse

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-57910 Missing touchUngrabEvent callback when Flickable steals press

          • 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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              frederik Frederik Gladhorn
              enz Markus Enzenberger
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              Dates

                Created:
                Updated:
                Resolved:

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