Untitled_215.py

Untitled_215.py

# coding: utf-8

from objc_util import *
import ui



def printMethods(whichObject):
    #print (dir(whichObject))
    for method in dir(whichObject):
        print (method)

#- (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading;
def locationManager_didUpdateHeading_(self, _cmd, manager, newHeading):
    headingObj = ObjCInstance(newHeading)

    if v.on_screen:
       def delayed_fcn():
          v['m_Heading_value'].text = str(headingObj)
       ui.delay(delayed_fcn,0.001)
       #print ("Magnetic:", headingObj.magneticHeading())
       #print ("True:",headingObj.trueHeading())
       #print ("ACCURACY:",headingObj.headingAccuracy())
    else:
        ObjCInstance(manager).stopUpdatingHeading()
        print('manager updated heading when view was not onscreen')
        return


def locationManager_didUpdateLocations_(_self,_cmd,manager,locations):
    locations=ObjCInstance(locations)
    if v.on_screen:
        def delayed_fcn():
            v['m_loc_value'].text = '{}'.format(locations[0])
        ui.delay(delayed_fcn,0.001)
    else:
        ObjCInstance(manager).stopUpdatingLocation()
        print('manager updated loc when view was not onscreen')
        return

def locationManager_didFailWithError_(_self,_cmd,manager,error):
    error=ObjCInstance(error)
    print (error)

methods = [locationManager_didUpdateHeading_,locationManager_didUpdateLocations_,locationManager_didFailWithError_]
protocols = ['CLLocationManagerDelegate']
MyLocationManagerDelegate = create_objc_class('MyLocationManagerDelegate', methods=methods, protocols=protocols)

class LocView(ui.View):
	def __init__(self, *args,**kwargs):
		ui.View.__init__(self,*args,**kwargs)
		tv=ui.TextView(frame=(0,0,self.width,100),name='m_Heading_value')
		tv.text='headings'
		self.add_subview(tv)
		tv.flex='w'
		
		tv=ui.TextView(frame=(0,100,self.width,100),name='m_loc_value')
		tv.text='locations'
		tv.flex='w'
		self.add_subview(tv)
		self.setup_loc()
	def will_close(self):
		# we need to stop updates, delete locationmanager
		on_main_thread(self.myloc.stopUpdatingHeading)()
		on_main_thread(self.myloc.stopUpdatingLocation)()
		print('**updates stopped**')
		#mself.cleanup()
	def cleanup(self):
		#remove references to allow objects to be gc'd
		del self.myloc
		del self.delegate
	def setup_loc(self):
	    CLLocationManager = ObjCClass ('CLLocationManager')
	    #myloc = CLLocationManager.alloc().init().autorelease()
	    myloc = CLLocationManager.sharedManager() # prevent many copies from getting instantiated
	    #print (printMethods(myloc))
	    delegate = MyLocationManagerDelegate.alloc().init()
	    myloc.setDelegate_(delegate)
	    locationAvailable = CLLocationManager.headingAvailable()
	    print ("HEADING AVAILABLE")
	    print (locationAvailable)  
	    print ("CURRENT HEADING ORIENTATION")
	    print (myloc.headingOrientation())
	    print ("NEW HEADING ORIENTATION")
	    myloc.headingOrientation = 3
	    print (myloc.headingOrientation())
	    myloc.headingFilter = 3
	    myloc.distanceFilter = -1
	    myloc.desiredAccuracy=myloc.bestAccuracy()
	    
	    print ("NEW THRESHOLD")
	    print (myloc.headingFilter())
	    self.myloc=myloc
	    self.delegate=delegate
	@on_main_thread    
	def start_updates(self):
	    print ("START MONITORING ")
	    self.myloc.startUpdatingLocation()    
	    self.myloc.startUpdatingHeading()



if __name__ == '__main__':
	v=LocView(frame=(0,0,500,200))
	v.present('sheet')
	v.start_updates()