Accel Bubble

The AccelBubble example demonstrates the Legacy Accelerometer QML element.

Overview

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

Import the Legacy Sensors Declarative module.

 import QtMobility.sensors 1.2

Add an Accelerometer QML element.

     Accelerometer {
         id: accel

The accelerometer might run too fast for what we need, so add a timer to read the accelerometer's readings.

     Timer {
          interval: 500; running: true; repeat: true

          property real xdiff;
          property real ydiff;

          onTriggered: {
              xdiff = accel.reading.x - accel.accelX;
              ydiff = accel.reading.y - accel.accelY;

              if (Math.abs(xdiff) > 0.3) {
                  accel.accelX = -accel.reading.x
              }
              if (Math.abs(ydiff) > 0.3) {
                  accel.accelY = accel.reading.y
              }
          }
      }

Use the 'active' property to start the sensor

         active:true

Files:

• sensors/accelbubble/main.qml
• sensors/accelbubble/accelbubble.pro

Images:

• sensors/accelbubble/images/Bluebubble2.png