[sovled][Windows Phone 8.1][5.4] QML MouseArea pressAndHold signal not working properly.

kolegs

Hey,

I got a problem with pressAndHold signal in mouseArea. The problem is that signal is emitted right after clicking on the area instead after some time(800ms according to documentation http://doc.qt.digia.com/qt-5.2/qml-qtquick-mousearea.html#onPressAndHold-signal).

So got a question, is there a way to manually set the long press time? I think this could fix it.

SGaist

Hi,

AFAIK no, it's a constant that cannot be currently changed

alexleutgoeb

Hi,

I also experienced that issue, this seems to be a bug in the Win RT port.

As a workaround you can add your own timer and kind of simulate the pressAndHold behavior like the following code snippet (this snippet also handles the clicked signal, you can strip some code if you don't need that):

@MouseArea {
id: innerArea

// Internal properties for pressAndHold handling
property bool __isLongPress: false
property real __initialY: 0

onClicked: {
  // Don't handle clicked signal if it is a long press
  if (__isLongPress)
    return

  // Handle the clicked signal here
}

onPressed: {
  if (!pressAndHoldTimer.running) {
    __isLongPress = false
    pressAndHoldTimer.restart()
    __initialY = mouseY
  }
}

onReleased: {
  if (pressAndHoldTimer.running) {
    pressAndHoldTimer.stop()
  }
}

onPositionChanged: {
  // Check for some absolute movement before canceling timer
  if (pressAndHoldTimer.running && Math.abs(mouseY - __initialY) > 10) {
    pressAndHoldTimer.stop()
  }
}

Timer {
  id: pressAndHoldTimer

  interval: 800

  onTriggered: {
    innerArea.__isLongPress = true
    
    // Handle the pressAndHold signal here
  }
}

}@

You can also up-vote the bug report here to get it fixed faster: https://bugreports.qt.io/browse/QTBUG-44606

Cheers,
Alex from V-Play

kolegs

Thanks for help, had same idea as you, but I wasnt sure if its a bug or my mistake.

Anyway I think it's solved since there is simple workaround. But still I up-voted the bug.

lynic

The bug has been fixed a few weeks ago in the Qt 5.4.1 version.