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Last active October 30, 2016 12:18
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Quirks in DeviceOrientation API
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gistfile1.md

Testing the DeviceOrientation API

Test case: http://jsfiddle.net/TPz2G/3/show/

Nexus S, Android 4.1.1

Firefox Beta 22.0

  • Alpha increases when rotating device clockwise
  • absolute: true
  • Alpha is at 0° when device is exactly north

Chrome Beta 28.0.1500.31

  • Alpha increases when rotating device counterclockwise
  • absolute: true
  • Alpha is at 0° when device is approximately north

Android Browser 4.1.1

  • Alpha increases when rotating device counterclockwise
  • absolute: undefined
  • Alpha is at 0° when device is exactly west

Opera Mobile 14.0.1074.58201

  • Alpha increases when rotating device counterclockwise
  • absolute: true
  • Alpha is at 0° when device is exactly north

iPhone 5, iOS 6.1.4

Mobile Safari

  • Alpha increases when rotating device counterclockwise
  • Alpha is at 0° where the page loads
  • Includes webkitCompassHeading property, which is at 0° when device is north
  • webkitCompassHeading increases when rotating device clockwise

iPhone 4S, iOS 6.1.3

Chrome 26.0.1410.53

  • Same as iPhone 5 Mobile Safari
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