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from jnius import autoclass
from jnius import cast
from jnius import java_method
from jnius import PythonJavaClass
from plyer.platforms.android import activity
from plyer.facades import SpatialOrientation
Context = autoclass('android.content.Context')
Sensor = autoclass('android.hardware.Sensor')
SensorManager = autoclass('android.hardware.SensorManager')
class AccelerometerSensorListener(PythonJavaClass):
__javainterfaces__ = ['android/hardware/SensorEventListener']
def __init__(self):
super().__init__()
self.SensorManager = cast(
'android.hardware.SensorManager',
activity.getSystemService(Context.SENSOR_SERVICE)
)
self.sensor = self.SensorManager.getDefaultSensor(
Sensor.TYPE_ACCELEROMETER
)
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):
pass
class MagnetometerSensorListener(PythonJavaClass):
__javainterfaces__ = ['android/hardware/SensorEventListener']
def __init__(self):
super().__init__()
service = activity.getSystemService(Context.SENSOR_SERVICE)
self.SensorManager = cast('android.hardware.SensorManager', 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):
pass
class AndroidSpOrientation(SpatialOrientation):
def __init__(self):
self.state = False
def _get_orientation(self):
if self.state:
rotation = [0] * 9
inclination = [0] * 9
gravity = []
geomagnetic = []
gravity = self.listener_a.values
geomagnetic = self.listener_m.values
if gravity[0] is not None and geomagnetic[0] is not None:
ff_state = SensorManager.getRotationMatrix(
rotation, inclination,
gravity, geomagnetic
)
if ff_state:
values = [0, 0, 0]
values = SensorManager.getOrientation(
rotation, values
)
return values
def _enable_listener(self, **kwargs):
if not self.state:
self.listener_a = AccelerometerSensorListener()
self.listener_m = MagnetometerSensorListener()
self.listener_a.enable()
self.listener_m.enable()
self.state = True
def _disable_listener(self, **kwargs):
if self.state:
self.listener_a.disable()
self.listener_m.disable()
self.state = False
delattr(self, 'listener_a')
delattr(self, 'listener_m')
def instance():
return AndroidSpOrientation()
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