devicemotion

The devicemotion event is fired at a regular interval and indicates the amount of physical force of acceleration the device is receiving at that time. It also provides information about the rate of rotation, if available.

General info

Specification

DeviceOrientation Event

Interface

DeviceMotionEvent

Bubbles

No

Cancelable

No

Target

DefaultView (window)

Default Action

None

Properties

Property	Type	Description
target Read only	EventTarget	The event target (the topmost target in the DOM tree).
type Read only	DOMString	The type of event.
bubbles Read only	Boolean	Whether the event normally bubbles or not
cancelable Read only	Boolean	Whether the event is cancellable or not?
acceleration Read only	DeviceAcceleration	The acceleration of the device. This value has taken into account the effect of gravity and removed it from the figures. This value may not exist if the hardware doesn't know how to remove gravity from the acceleration data.
accelerationIncludingGravity	DeviceAcceleration Read only	The acceleration of the device. This value includes the effect of gravity, and may be the only value available on devices that don't have a gyroscope to allow them to properly remove gravity from the data.
interval Read only	double	The interval, in milliseconds, at which the DeviceMotionEvent is fired. The next event will be fired in approximately this amount of time.
rotationRate Read only	DeviceRotationRate	The rates of rotation of the device about all three axes.

Example

function handleMotionEvent(event) {

    var x = event.accelerationIncludingGravity.x;
    var y = event.accelerationIncludingGravity.y;
    var z = event.accelerationIncludingGravity.z;

    // Do something awesome.
}

window.addEventListener("devicemotion", handleMotionEvent, true);

Related Events

• deviceorientation