/***
Copyright (c) 2012 CommonsWare, LLC
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy
of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
by applicable law or agreed to in writing, software distributed under the
License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied. See the License for the specific
language governing permissions and limitations under the License.
Covered in detail in the book _The Busy Coder's Guide to Android Development_
https://commonsware.com/Android
*/
package com.commonsware.android.mapsv2.location;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.Toast;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener;
import com.google.android.gms.maps.LocationSource;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
public class MainActivity extends AbstractMapActivity implements
OnMapReadyCallback, OnInfoWindowClickListener, LocationSource,
LocationListener {
private OnLocationChangedListener mapLocationListener=null;
private LocationManager locMgr=null;
private Criteria crit=new Criteria();
private boolean needsInit=false;
private GoogleMap map=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (readyToGo()) {
setContentView(R.layout.activity_main);
MapFragment mapFrag=
(MapFragment)getFragmentManager().findFragmentById(R.id.map);
if (savedInstanceState == null) {
needsInit=true;
}
mapFrag.getMapAsync(this);
}
}
@Override
public void onMapReady(final GoogleMap map) {
this.map=map;
if (needsInit) {
CameraUpdate center=
CameraUpdateFactory.newLatLng(new LatLng(40.76793169992044,
-73.98180484771729));
CameraUpdate zoom=CameraUpdateFactory.zoomTo(15);
map.moveCamera(center);
map.animateCamera(zoom);
}
addMarker(map, 40.748963847316034, -73.96807193756104,
R.string.un, R.string.united_nations);
addMarker(map, 40.76866299974387, -73.98268461227417,
R.string.lincoln_center,
R.string.lincoln_center_snippet);
addMarker(map, 40.765136435316755, -73.97989511489868,
R.string.carnegie_hall, R.string.practice_x3);
addMarker(map, 40.70686417491799, -74.01572942733765,
R.string.downtown_club, R.string.heisman_trophy);
map.setInfoWindowAdapter(new PopupAdapter(getLayoutInflater()));
map.setOnInfoWindowClickListener(this);
locMgr=(LocationManager)getSystemService(LOCATION_SERVICE);
crit.setAccuracy(Criteria.ACCURACY_FINE);
locMgr.requestLocationUpdates(0L, 0.0f, crit, this, null);
map.setLocationSource(this);
map.setMyLocationEnabled(true);
map.getUiSettings().setMyLocationButtonEnabled(false);
}
@Override
public void onResume() {
super.onResume();
if (locMgr!=null) {
locMgr.requestLocationUpdates(0L, 0.0f, crit, this, null);
}
if (map!=null) {
map.setLocationSource(this);
}
}
@Override
public void onPause() {
map.setLocationSource(null);
locMgr.removeUpdates(this);
super.onPause();
}
@Override
public void onInfoWindowClick(Marker marker) {
Toast.makeText(this, marker.getTitle(), Toast.LENGTH_LONG).show();
}
@Override
public void activate(OnLocationChangedListener listener) {
this.mapLocationListener=listener;
}
@Override
public void deactivate() {
this.mapLocationListener=null;
}
@Override
public void onLocationChanged(Location location) {
if (mapLocationListener != null) {
mapLocationListener.onLocationChanged(location);
LatLng latlng=
new LatLng(location.getLatitude(), location.getLongitude());
CameraUpdate cu=CameraUpdateFactory.newLatLng(latlng);
map.animateCamera(cu);
}
}
@Override
public void onProviderDisabled(String provider) {
// unused
}
@Override
public void onProviderEnabled(String provider) {
// unused
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// unused
}
private void addMarker(GoogleMap map, double lat, double lon,
int title, int snippet) {
map.addMarker(new MarkerOptions().position(new LatLng(lat, lon))
.title(getString(title))
.snippet(getString(snippet)));
}
}