old_contents: '''
  iOS Compass
  ---------------------
  '''
  
  from plyer.facades import Compass
  from pyobjus import autoclass
  
  
  class IosCompass(Compass):
  
      def __init__(self):
          super(IosCompass, self).__init__()
          self.bridge = autoclass('bridge').alloc().init()
          self.bridge.motionManager.setMagnetometerUpdateInterval_(0.1)
  
      def _enable(self):
          self.bridge.startMagnetometer()
  
      def _disable(self):
          self.bridge.stopMagnetometer()
  
      def _get_orientation(self):
          return (
              self.bridge.mg_x,
              self.bridge.mg_y,
              self.bridge.mg_z)
  
  
  def instance():
      return IosCompass()
  
new_contents: '''
  iOS Compass
  -----------
  '''
  
  from plyer.facades import Compass
  from pyobjus import autoclass
  
  
  class IosCompass(Compass):
  
      def __init__(self):
          super(IosCompass, self).__init__()
          self.bridge = autoclass('bridge').alloc().init()
          self.bridge.motionManager.setMagnetometerUpdateInterval_(0.1)
          self.bridge.motionManager.setDeviceMotionUpdateInterval_(0.1)
  
      def _enable(self):
          self.bridge.startMagnetometer()
          self.bridge.startDeviceMotionWithReferenceFrame()
  
      def _disable(self):
          self.bridge.stopMagnetometer()
          self.bridge.stopDeviceMotion()
  
      def _get_orientation(self):
          return (
              self.bridge.mf_x,
              self.bridge.mf_y,
              self.bridge.mf_z)
  
      def _get_field_uncalib(self):
          return (
              self.bridge.mg_x,
              self.bridge.mg_y,
              self.bridge.mg_z,
              self.bridge.mg_x - self.bridge.mf_x,
              self.bridge.mg_y - self.bridge.mf_y,
              self.bridge.mg_z - self.bridge.mf_z)
  
  
  def instance():
      return IosCompass()
  
subject: Add iOS implementation to get uncalibrated values