Qt Sensors - SensorGesture QML Type example | Qt Sensors 5.15.18

- Qt 5.15
- Qt Sensors
- Qt Sensors Examples
- Qt Sensors - SensorGesture QML Type example
- Qt 5.15.18 Reference Documentation

# 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
                 ...
             }

Example project @ code.qt.io

See also Qt Sensors - ShakeIt QML Example and Qt Sensor Gestures.