1 files changed, 74 insertions, 0 deletions
diff --git a/external/plyer/platforms/android/compass.py b/external/plyer/platforms/android/compass.py
new file mode 100644
index 0000000..7fb19d6
--- /dev/null
+++ b/external/plyer/platforms/android/compass.py
@@ -0,0 +1,74 @@
+'''
+Android Compass
+---------------------
+'''
+
+from plyer.facades import Compass
+from jnius import PythonJavaClass, java_method, autoclass, cast
+from plyer.platforms.android import activity
+
+Context = autoclass('android.content.Context')
+Sensor = autoclass('android.hardware.Sensor')
+SensorManager = autoclass('android.hardware.SensorManager')
+
+
+class MagneticFieldSensorListener(PythonJavaClass):
+    __javainterfaces__ = ['android/hardware/SensorEventListener']
+
+    def __init__(self):
+        super(MagneticFieldSensorListener, self).__init__()
+        self.SensorManager = cast('android.hardware.SensorManager',
+                    activity.getSystemService(Context.SENSOR_SERVICE))
+        self.sensor = self.SensorManager.getDefaultSensor(
+                Sensor.TYPE_MAGNETIC_FIELD)
+
+        self.values = [None, None, None]
+
+    def enable(self):
+        self.SensorManager.registerListener(self, self.sensor,
+                    SensorManager.SENSOR_DELAY_NORMAL)
+
+    def disable(self):
+        self.SensorManager.unregisterListener(self, self.sensor)
+
+    @java_method('(Landroid/hardware/SensorEvent;)V')
+    def onSensorChanged(self, event):
+        self.values = event.values[:3]
+
+    @java_method('(Landroid/hardware/Sensor;I)V')
+    def onAccuracyChanged(self, sensor, accuracy):
+        # Maybe, do something in future?
+        pass
+
+
+class AndroidCompass(Compass):
+    def __init__(self):
+        super(AndroidCompass, self).__init__()
+        self.bState = False
+
+    def _enable(self):
+        if (not self.bState):
+            self.listener = MagneticFieldSensorListener()
+            self.listener.enable()
+            self.bState = True
+
+    def _disable(self):
+        if (self.bState):
+            self.bState = False
+            self.listener.disable()
+            del self.listener
+
+    def _get_orientation(self):
+        if (self.bState):
+            return tuple(self.listener.values)
+        else:
+            return (None, None, None)
+
+    def __del__(self):
+        if(self.bState):
+            self._disable()
+        super(self.__class__, self).__del__()
+
+
+def instance():
+    return AndroidCompass()