Access accelerometer via Javascript in Android?

Question

Is there any way to access accelerometer data using Javascript on Android\'s browser? I know it supports \"onorientationchange\", but I\'d like to get everything.

C

Answer 1

Making an update to this thread.

HTML5 lets someone do this. Detecting whether or not an accelerometer is present is easy.

    if (window.DeviceMotionEvent == undefined) {
        //No accelerometer is present. Use buttons. 
        alert("no accelerometer");
    }
    else {
        alert("accelerometer found");
        window.addEventListener("devicemotion", accelerometerUpdate, true);
    }

In the function that you define to receive the accelerometer events, you can look at the accelerationIncludingGravity member.

function accelerometerUpdate(e) {
   var aX = event.accelerationIncludingGravity.x*1;
   var aY = event.accelerationIncludingGravity.y*1;
   var aZ = event.accelerationIncludingGravity.z*1;
   //The following two lines are just to calculate a
   // tilt. Not really needed. 
   xPosition = Math.atan2(aY, aZ);
   yPosition = Math.atan2(aX, aZ);
}

More information can be found here: http://dev.w3.org/geo/api/spec-source-orientation.html