# Modules.CoreMotion.Accelerometer
Allows Titanium client applications to access CoreMotion's Accelerometer APIs.
# Properties
# apiName READONLY
The name of the API that this proxy corresponds to.
The value of this property is the fully qualified name of the API. For example, Titanium.UI.Button
returns Ti.UI.Button
.
# bubbleParent
Indicates if the proxy will bubble an event to its parent.
Some proxies (most commonly views) have a relationship to other proxies, often established by the add() method. For example, for a button added to a window, a click event on the button would bubble up to the window. Other common parents are table sections to their rows, table views to their sections, and scrollable views to their views. Set this property to false to disable the bubbling to the proxy's parent.
Default: true
# Methods
# addEventListener
Adds the specified callback as an event listener for the named event.
Parameters
Name | Type | Description |
---|---|---|
name | String | Name of the event. |
callback | Callback<Titanium.Event> | Callback function to invoke when the event is fired. |
Returns
- Type
- void
# applyProperties
Applies the properties to the proxy.
Properties are supplied as a dictionary. Each key-value pair in the object is applied to the proxy such that myproxy[key] = value.
Parameters
Name | Type | Description |
---|---|---|
props | Dictionary | A dictionary of properties to apply. |
Returns
- Type
- void
# fireEvent
Fires a synthesized event to any registered listeners.
Parameters
Name | Type | Description |
---|---|---|
name | String | Name of the event. |
event | Dictionary | A dictionary of keys and values to add to the Titanium.Event object sent to the listeners. |
Returns
- Type
- void
# getAccelerometerData
Returns the latest sample of accelerometer data.
An app that is receiving accelerometer data after calling startAccelerometerUpdates with no callback, needs to periodically check the value returned by this method and process the acceleration data.
Returns
# isAccelerometerActive
Returns a Boolean indicating whether accelerometer updates are currently happening.
Indicates whether startAccelerometerUpdates has been called since stopAccelerometerUpdates.
Returns
- Type
- Boolean
# isAccelerometerAvailable
Returns a Boolean indicating whether an accelerometer is available on the device.
Returns
- Type
- Boolean
# removeEventListener
Removes the specified callback as an event listener for the named event.
Multiple listeners can be registered for the same event, so the
callback
parameter is used to determine which listener to remove.
When adding a listener, you must save a reference to the callback function in order to remove the listener later:
var listener = function() { Ti.API.info("Event listener called."); }
window.addEventListener('click', listener);
To remove the listener, pass in a reference to the callback function:
window.removeEventListener('click', listener);
Parameters
Name | Type | Description |
---|---|---|
name | String | Name of the event. |
callback | Callback<Titanium.Event> | Callback function to remove. Must be the same function passed to |
Returns
- Type
- void
# setAccelerometerUpdateInterval
The interval in milliseconds, for providing accelerometer updates to the callback.
Parameters
Name | Type | Description |
---|---|---|
interval | Number | The interval in milliseconds |
Returns
- Type
- void
# startAccelerometerUpdates
Starts accelerometer updates.
If a callback is passed to this method, it will be called whenever there is an update. The frequency of these updates can be controlled using the setAccelerometerUpdateInterval method. If no callback is passed, the accelerometer data can be accessed using the getAccelerometerData method. To stop the delivery of events, call the stopAccelerometerUpdates method. Note: It is recommended to set an update interval of at least 250ms before, to avoid receiving too many callbacks at once.
Parameters
Name | Type | Description |
---|---|---|
callback | Callback<CoreMotionAccelerometerDataWithSuccess> | The method to be called when there is an update. |
Returns
- Type
- void
# stopAccelerometerUpdates
Stops accelerometer updates.
Returns
- Type
- void