Overview

Qt Sensors - Accel Bubble

The AccelBubble example demonstrates the Legacy Accelerometer QML type.

Overview

Writing a QML application that uses the Legacy Accelerometer QML sensors type requires the following steps:

Import the Legacy Sensors Declarative module.

import QtSensors 5.0

Add an Accelerometer QML type.

    Accelerometer {
        id: accel
        dataRate: 100

Use the 'active' property to start the sensor

        active:true

Move the bubble according to a factor of the accelerator sensor

        onReadingChanged: {
            var newx = (bubble.x + calcRoll(accel.reading.x, accel.reading.y, accel.reading.z) * .1)
            var newy = (bubble.y - calcPitch(accel.reading.x, accel.reading.y, accel.reading.z) * .1)

            if (newx < 0)
                newx = 0

            if (newx > mainPage.width - bubble.width)
                newx = mainPage.width - bubble.width

            if (newy < 18)
                newy = 18

            if (newy > mainPage.height - bubble.height)
                newy = mainPage.height - bubble.height

                bubble.x = newx
                bubble.y = newy
        }

Files:

Contents

Qt Sensors - Accel Bubble

Overview