This document discusses various methods for obtaining and using location data in Android applications, including getting the device's location using GPS, cellular networks, WiFi or other location providers, setting location update frequencies, displaying locations on maps, geocoding addresses, and drawing overlays on maps.

1. Localización
Guido Ticona Hurtado
guidoti@gmail.com

2.  GPS
 Red de Telefonía Movil
 Red WI-FI

3.  1 Obtener mecanismo de localizacion
(location providers)
 2 Establecer la mejor localizacion
 3 Verificar si está habilitado

4.  LocationManager locManager =
(LocationManager)getSystemService(LOCATION_SER
VICE);
 List<String> listaProviders =
locManager.getAllProviders();

5.  LocationProvider provider =
locManager.getProvider(listaProviders.get(0));
 int precision = provider.getAccuracy();
 boolean obtieneAltitud = provider.supportsAltitude();
 int consumoRecursos = provider.getPowerRequirement();
 boolean reqCelular = provider.requiresCell();
 boolean reqRed = provider.requiresNetwork();
 boolean reqSat = provider.requiresSatellite();

6.  Criteria req = new Criteria();
 req.setAccuracy(Criteria.ACCURACY_FINE);
 req.setAltitudeRequired(true);
 String mejorProviderCrit =
locManager.getBestProvider(req, false);

 List<String> listaProvidersCrit =
locManager.getProviders(req, false);

7.  if
(!locManager.isProviderEnabled(LocationMana
ger.GPS_PROVIDER)) {
 mostrarAvisoGpsDeshabilitado();
 }
 Implementar Clase LocationListener

8.  Obtener ultima localizacion
◦ locManager.getLastKnownLocation(LocationManage
r.GPS_PROVIDER);
 Estableder frecuencia
◦ locManager.requestLocationUpdates(
◦ LocationManager.GPS_PROVIDER, 30000, 0,
this);
 Deshabilitar Rastreo
locManager.removeUpdates(this);

9.  Instalar Google API
 Crear una Virtual con Google API
 Configurar acceso a internet
 Usar libreria com.google.android.maps

10.  Keytool –list –keystore debug.keystore –
storepass android –keypass android
 https://developers.google.com/android/map
s-api-signup
 Copiar el MD5

11.  Rango de puntos
◦ -17.354882 y -66.189623
◦ -17.429908 y -66.127481
 Plaza principal
◦ -17.393847 y -66.156954

12.  Clase MapActivity
 Widget MapView
 Clase control MapController
=>getController()
 Metodos
◦ setBuiltInZoomcontrols(true)
◦ isSatellite => setSatellite
◦ isStreetView => setStreetView
◦ isTraffic => setTraffic

13.  Centrar mapa
◦ GeoPoint loc=new GeoPoint(la.intValue,lo.intValue)
◦ Control.setCenter(loc)
◦ Control.setZoom(10)
 Convertir LatLon a pixeles
◦ Projection => getProyection()
◦ Projection.toPixels(loc,punto)
 Convertir pixeles a LatLon
◦ Proyection => getProyection()
◦ Proyection.fromPixels()

14.  Capas => Overlay => getOverlays()
 Metodo =>add()
 Llamar a postInvalidate() para activar overlay

15.  Capa Base
 Capa Intermedia
 Capa Superior

16.  Capturar puntos
◦ Implementar metodo onTap()
◦ Point.getLatitudeE6/1E6
◦ Point.getLongitudeE6/1E6

17.  Dibujar Circulos/Texto
◦ Canvas.drawCircle(x,y,5,paint)
◦ Canvas.drawText(“Texto”,x,y,paint)
 Dibujar imagen
◦ Bitmap
b=BitmapFactory.decodeResource(mapView.getRes
ources(),R.drawable.imagen)
◦ Canvas.drawBitmap(b,x,y,paint)

18.  Geocoder g= new
Geocoder(this.Locale.getDefault())
 List<Address>
a=g.getFromLocation(xE6,yE6,max)
 Metodos Auxiliares
◦ Size()
◦ Get()
◦ getMaxAddressLineIndex()
◦ getAddressLine()

19.  Geocoder g= new
Geocoder(this.Locale.getDefault())
 List<Address> a= g.getFromLocationName(
"empire state building", 5)
 Metodos Auxiliares
◦ Get()
◦ getLatitude()
◦ getLongitud()
◦ animateTo(p)