gistfile1.py

'''
Android GPS
-----------
'''

from plyer.facades import GPS
from plyer.platforms.android import activity
from jnius import autoclass, java_method, PythonJavaClass

Looper = autoclass('android.os.Looper')
LocationManager = autoclass('android.location.LocationManager')
Context = autoclass('android.content.Context')


class _LocationListener(PythonJavaClass):
    __javainterfaces__ = ['android/location/LocationListener']

    def __init__(self, root):
        self.root = root
        super(_LocationListener, self).__init__()

    @java_method('()I')
    def hashCode(self):
        return id(self)

    @java_method('()Ljava/lang/String;', name='hashCode')
    def hashCode_(self):
        return '{}'.format(id(self))

    @java_method('(Ljava/lang/Object;)Z')
    def equals(self, obj):
        return obj.hashCode() == self.hashCode()

    @java_method('(Landroid/location/Location;)V')
    def onLocationChanged(self, location):
        self.root.on_location(
            lat=location.getLatitude(),
            lon=location.getLongitude(),
            speed=location.getSpeed(),
            bearing=location.getBearing(),
            altitude=location.getAltitude(),
            accuracy=location.getAccuracy(),
            provider=location.getProvider())

    @java_method('(Ljava/lang/String;)V')
    def onProviderEnabled(self, status):
        if self.root.on_status:
            self.root.on_status('provider-enabled', status)

    @java_method('(Ljava/lang/String;)V')
    def onProviderDisabled(self, status):
        if self.root.on_status:
            self.root.on_status('provider-disabled', status)

    @java_method('(Ljava/lang/String;ILandroid/os/Bundle;)V')
    def onStatusChanged(self, provider, status, extras):
        if self.root.on_status:
            s_status = 'unknown'
            if status == 0x00:
                s_status = 'out-of-service'
            elif status == 0x01:
                s_status = 'temporarily-unavailable'
            elif status == 0x02:
                s_status = 'available'
            self.root.on_status('provider-status', '{}: {}'.format(
                provider, s_status))

class AndroidGPS(GPS):

    def _configure(self):
        if not hasattr(self, '_location_manager'):
            self._location_manager = activity.getSystemService(
                    Context.LOCATION_SERVICE)
            self._location_listener_gps = _LocationListener(self)
            self._location_listener_network = _LocationListener(self)

    def _start(self):
        # XXX defaults should be configurable by the user, later
        providers = self._location_manager.getProviders(False).toArray()
        #print 'BEST LOC, PROV', self._location_manager.currentBestLocation, self._location_manager.currentBestLocation.getProvider()
        print 'PROVIDERS:  ', providers
        for provider in providers:
            #print 'PROVIDER IS:   ', provider
            self._location_manager.requestLocationUpdates(
                'network',
                1000, # minTime, in milliseconds
                1, # minDistance, in meters
                self._location_listener_network,
                Looper.getMainLooper())
            self._location_manager.requestLocationUpdates(
                'gps',
                1000, # minTime, in milliseconds
                1, # minDistance, in meters
                self._location_listener_gps,
                Looper.getMainLooper())

    def _stop(self):
        self._location_manager.removeUpdates(self._location_listener)

def instance():
    return AndroidGPS()