main.qml Example File

 /****************************************************************************
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 ** This file is part of the QtSensors module of the Qt Toolkit.
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 import QtQuick 2.0
 import QtMobility.sensors 1.3
 import Grue 1.0

 Rectangle {
     width: 240
     height: 320
     color: "black"

     GrueSensor {
         id: sensor
         active: true
         onReadingChanged: {
             var percent = reading.chanceOfBeingEaten;
             var thetext = "";
             var theopacity = 0;
             if (percent === 0) {
                 thetext = "It is light. You are safe from Grues.";
             }
             else if (percent === 100) {
                 thetext = "You have been eaten by a Grue!";
                 sensor.active = false;
                 theopacity = 1;
             }
             else if (percent > 0) {
                 thetext = "It is dark. You are likely to be eaten by a Grue. "
                         + "Your chance of being eaten by a Grue: "+percent+" percent.";
                 theopacity = 0.05 + (percent * 0.001);
             }
             text.font.pixelSize = 30;
             text.text = "<p>" + thetext + "</p>";
             grueimg.opacity = theopacity;
         }
     }

     Text {
         id: text
         anchors.top: parent.top
         anchors.topMargin: 20
         anchors.left: parent.left
         anchors.right: parent.right
         text: "I can't tell if you're going to be eaten by a Grue or not. You're on your own!"
         wrapMode: Text.WordWrap
         font.pixelSize: 50
         color: "white"
     }

     Image {
         id: grueimg
         anchors.bottom: parent.bottom
         anchors.horizontalCenter: parent.horizontalCenter
         source: "grue.png"
         opacity: 0
     }
 }