Qt Sensors in QML

To write a QML application that will use the QML sensors types in the QtSensors 5 import you need to to the following steps:

Import the QtSensors 5.x declarative plugin:

import QtSensors 5.0

Add the Sensor QML types into your qml file.

In this example we use the TiltSensor:

TiltSensor {
    id: tilt
    active: false
}

The Tilt-, AmbientLight- and the Proximity QML sensor types have the 'enabled' property in common. To start or stop the sensor set this property to true or false.

tilt.active = (tiltStart.text === "Start");

Reading the data can be done for each sensor type like following:

TiltSensor

text: "X Rotation: " + tilt.xRotation + "°"
text: "Y Rotation: " + tilt.yRotation +  "°"

AmbientLightSensor

onReadingChanged: {
    if (reading.lightLevel == AmbientLightSensor.Unknown)
        ambientlighttext.text = "Ambient light: Unknown";
    else if (reading.lightLevel == AmbientLightSensor.Dark)
        ambientlighttext.text = "Ambient light: Dark";
    else if (reading.lightLevel == AmbientLightSensor.Twilight)
        ambientlighttext.text = "Ambient light: Twilight";
    else if (reading.lightLevel == AmbientLightSensor.Light)
        ambientlighttext.text = "Ambient light: Light";
    else if (reading.lightLevel == AmbientLightSensor.Bright)
        ambientlighttext.text = "Ambient light: Bright";
    else if (reading.lightLevel == AmbientLightSensor.Sunny)
        ambientlighttext.text = "Ambient light: Sunny";
}

ProximitySensor

text: "Proximity: " +
      (proxi.active ? (proxi.reading.near ? "Near" : "Far") : "Unknown")

Files:

• qmlqtsensors/qmlqtsensors.qml
• qmlqtsensors/components/ApplicationWindow.qml
• qmlqtsensors/components/Button.qml
• qmlqtsensors/components/Divider.qml
• qmlqtsensors/main.cpp
• qmlqtsensors/qmlqtsensors.pro
• qmlqtsensors/qmlqtsensors.qrc