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Qt 5.12
Qt Sensors
Qt Sensors Examples
Qt Sensors - SensorGesture QML Type example

Qt Sensors - SensorGesture QML Type example

Demonstrates the use of SensorGesture QML type.

Overview

To write a QML application that will use the gesture plugin, following steps are needed:

Import the QtSensors 5.x module:



  import QtSensors 5.0

Add the SensorGesture QML type into your qml file.



      SensorGesture {
          id: sensorGesture
          enabled: false
          onDetected: {
              if (gesture !== oldGesture)
                  count = 0;
              valueText.text = gesture + " " + count;
              oldGesture = gesture;
              count++;
          }
          onEnabledChanged: {
              valueText.text = ""
          }
      }

Each SensorGesture QML type contains a property called gestures. This example uses an alias gestureId for this property.



      property alias gestureId: sensorGesture.gestures

Then, the gesture or gestures to use can be specified using the alias:



          onSelectedGestureChanged: {
              gesture.enabled = false;
              gesture.gestureId = gestureList.selectedGesture;
              ...
          }

A list of all available gestures is accessible through the availableGestures property:



          ListView {
              id: gestureList

              model: gesture.availableGestures
              ...
          }

Files:

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Qt Sensors - SensorGesture QML Type example

Overview