QpythonでGPS

Qpython (Android上で動くpython環境sl4aにガワをかぶせたものみたい)の練習を始める。
まずは、GPSで現在地を採ってみた。

import androidhelper
import time
droid=androidhelper.Android()
droid.startLocating()

droid.dialogCreateSpinnerProgress('position','obtaining')
droid.dialogShow()
event = droid.eventWaitFor('location')
print event
droid.dialogDismiss()

while 1:
   loc=droid.readLocation()
   if loc.result == {}:
      loc=droid.getLastknownLocation()
   if loc.result != None:
      if 'gps' in loc.result:
         lat = loc.result['gps']['latitude']
         lon = loc.result['gps']['longitude']
         print 'gps',lat, lon
      elif 'network' in loc.result:
         lat = loc.result['network']['latitude']
         lon = loc.result['network']['longitude']
         print 'network',lat, lon
   time.sleep(1)