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I am doing a simple slider project just to understand how sliders work in QML. I am using the slider from Qt.labs.controls I looked at their documentation and there are only two methods.

void decrease() and void increase()

All I want to do is display the value corresponding to the slider position. I can't find any signal or method that tells me if the current position changed or something like that. Am I looking in the right place? Or Do I have to write everything from scratch to make my simple project work?

Update: I am using QT5.6 should I use higher version for this

Cœur
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Shravan Singh
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2 Answers2

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You specifically mentioned labs, which means you're probably using QtQuick 2. There's been a lot of important developments of the Controls components since Qt5.6, so it would be advisable to upgrade if the intention is to continue using QtQuick 2.

http://doc.qt.io/qt-5/qml-qtquick-controls2-slider.html gives the latest docs. Note that the widget was updated in Qt5.7, and that the current import command is import QtQuick.Controls 2.1.

The latest Qt is 5.8, in which the Slider supports both position, and value.

  • position: the slider's position, from 0 to 1.
  • value: the output value mapped from position onto the scale [from, to]
Kenn Sebesta
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You can use value property of that control. Every qml property has implicit signal handler.For ex: for value property you will have signal onValueChanged. For your simple project you can also use slider control from QtQuick.Controls. Just import QtQuick.Controls 1.4 in your qml file.

Sumit Jadhav
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