title: How to define 'on-change' sensitivity?
body: <p>Sensors in android have 4 <a href="https://source.android.com/devices/sensors/base_triggers.html" rel="nofollow">trigger modes</a> associated to them. one of them is <code>'on-change'</code> trigger.
  'on-change' mean <code>events are reported only if the sensor's value has changed</code>.</p>
  
  <p>I didn't found way how to define the sensitivity(\threshold) of this trigger.
  For example, I want light sensor to fire event only if the delta is 2% or 5%.</p>
  
  <p>btw, I found windows support this, see <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/dd318991%28v=vs.85%29.aspx" rel="nofollow">SENSOR_PROPERTY_CHANGE_SENSITIVITY</a> propertykey in MSDN.</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>After long investigation I think Android not supported this (change sensitivity manually). <strong>But</strong> I know sensors data is not stable, so Android yet, must define "standard deviation" to fire an event on it..,</p>