Sideband/sbapp/plyer/platforms/android/proximity.py

70 lines
2.0 KiB
Python

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 Proximity
ActivityInfo = autoclass('android.content.pm.ActivityInfo')
Context = autoclass('android.content.Context')
Sensor = autoclass('android.hardware.Sensor')
SensorManager = autoclass('android.hardware.SensorManager')
class ProximitySensorListener(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_PROXIMITY)
self.value = 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.value = event.values[0]
@java_method('(Landroid/hardware/Sensor;I)V')
def onAccuracyChanged(self, sensor, accuracy):
pass
class AndroidProximity(Proximity):
listener = None
def _enable(self, **kwargs):
if not self.listener:
self.listener = ProximitySensorListener()
self.listener.enable()
def _disable(self, **kwargs):
if self.listener:
self.listener.disable()
delattr(self, 'listener')
def _get_proximity(self):
if self.listener:
value = self.listener.value
# value is 0.0 when proxime sensor is covered. In other case
# value is 5.0 because in smartphone, optical proximity sensors
# are used.
return value < 5.0
def instance():
return AndroidProximity()