Activity


Purpose

Constitutes the activity object that enables access to combined data from several native sensors to return the estimated type of user activity (walking, running, standing still, etc.) along with confidence percentage.

Once data gathering is started using the start method, the API starts sending data objects at set intervals.

You can establish the object by using the following reference:

launchbox.Motion.Activity (interval, dataCallback, errorCallback)

Module

This object belongs to the Motion product module.

Parameters

Name Description Type Use
interval Defined to set an expected interval (in miliseconds) at which data is collected from the sensors. integer required
dataCallback

Defined to receive the data JSON object similar to the one presented below the table.

function required
errorCallback

Defined to receive the error JSON object similar to the one presented below the table.

function required

JSON objects received by the callbacks

The data JSON object contains the following values:

{
  "timestamp" = 1455810375223, // time of the event in [ms], counted from the 1 January 1970 (long)
  "unknown" = 0, // (int)
  "running" = 12, // (int)
  "walking" = 78, // (int)
  "automotive" = 0, // (int)
  "still" = 0, // (int)
  "cycling" = 10 // (int)
}

Integer values returned in this object represent the percentage of probability that the device user's activity is one of the ones listed in the object.

The error JSON object contains one attribute that passes an error message delivered by the device:

{
  "message" = "Sensor 'ACTIVITY' is not available on this device."
}

Methods

Name Return type Description
start undefined

Initiates gathering of data from various hardware sensors, to enable recognition of the user's activity.

stop undefined

Stops gathering of data from various hardware sensors used to estimate the user's activity.

Related topics

Public API reference
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