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From Jon Coupée (JIRA) <j...@apache.org>
Subject [jira] [Created] (CB-12604) Improve Android Frequency
Date Fri, 24 Mar 2017 20:23:41 GMT
Jon Coupée created CB-12604:
-------------------------------

             Summary: Improve Android Frequency 
                 Key: CB-12604
                 URL: https://issues.apache.org/jira/browse/CB-12604
             Project: Apache Cordova
          Issue Type: Improvement
          Components: Plugin Device Motion
            Reporter: Jon Coupée
            Priority: Minor


Currently Android is set to SENSOR_DELAY_UI which is restricted to 16Hz. I think this can
be increased to SENSOR_DELAY_GAME which increase the frequency to 50Hz. I've created and tested
a fork on a Samsung S4 and S6, and the devices both report unique timestamps at this speed.
This increase in speed would improve usability of the plugin for gaming, and also scientific
data capture apps.

Increasing Android to SENSOR_DELAY_FASTEST would perhaps bring it inline with iOS - but I
appreciate there are an incredible range of devices beyond the Samsung devices.

I've also looked more closely at the docs iOS quirk and cannot see anything within the plugin
which restricts the iOS device to 40ms. I think I've also noticed that the iOS defaults to
100Hz.

"The API calls the success callback function at the interval requested, but restricts the
range of requests to the device between 40ms and 1000ms. For example, if you request an interval
of 3 seconds, (3000ms), the API requests data from the device every 1 second, but only executes
the success callback every 3 seconds."



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