/[projects]/android/TrainInfo/src/dk/thoerup/traininfo/LocationLookup.java
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Annotation of /android/TrainInfo/src/dk/thoerup/traininfo/LocationLookup.java

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Revision 285 - (hide annotations) (download)
Fri Aug 28 06:34:42 2009 UTC (14 years, 9 months ago) by torben
Original Path: android/TrainInfo/src/dk/thoerup/traininfo/StationLocator.java
File size: 4488 byte(s)
Safer fail over if there actually was obtained a usable location
1 torben 237 package dk.thoerup.traininfo;
2    
3     import java.util.List;
4    
5     import android.content.Context;
6     import android.location.Criteria;
7     import android.location.Location;
8     import android.location.LocationListener;
9     import android.location.LocationManager;
10     import android.os.Bundle;
11     import android.os.Handler;
12     import android.util.Log;
13 torben 253 import dk.thoerup.traininfo.provider.ProviderFactory;
14     import dk.thoerup.traininfo.provider.StationProvider;
15 torben 237
16     public class StationLocator implements LocationListener{
17    
18     LocationManager locManager;
19     Context cntx;
20     Handler hndl;
21    
22 torben 254 StationProvider provider;
23 torben 241 Location savedLocation = null;
24    
25 torben 237 public StationLocator(Context c, Handler h) {
26     cntx = c;
27     hndl = h;
28 torben 254
29     provider = ProviderFactory.getStationProvider();
30 torben 237 }
31    
32     public List<StationBean> getStations() {
33 torben 254 return provider.getStations();
34 torben 237 }
35    
36     public void abortLocationListener() {
37     locManager.removeUpdates(this);
38     }
39 torben 285
40     public boolean hasLocation() {
41     return savedLocation != null;
42     }
43 torben 237
44     public void locateStations() {
45     //http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&lstkp=0&rsz=small&hl=en&source=gsc&gss=.com&sig=fadf0e8d483d0f70bea11d5905010a16&q=Train%20station&near=56.377424%2C9.656695&key=ABQIAAAA1XbMiDxx_BTCY2_FkPh06RRaGTYH6UMl8mADNa0YKuWNNa8VNxQEerTAUcfkyrr6OwBovxn7TDAH5Q&v=1.0&nocache=1249640467498
46    
47     locManager = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE);
48     /*//testcode
49     List<String> provs = locManager.getAllProviders();
50     for (String p : provs) {
51     Log.e("Provider", p);
52     }
53     provs = locManager.getProviders(true);
54     for (String p : provs) {
55     Log.e("ActiveProvider", p);
56     }
57     */
58     Criteria c = new Criteria();
59     c.setAccuracy(Criteria.ACCURACY_FINE);
60     String bestProv = locManager.getBestProvider(c, true);
61 torben 242 Log.i("BestProvider", ""+bestProv);
62 torben 241
63 torben 237
64     if (bestProv != null) {
65     locManager.requestLocationUpdates(bestProv, 0, 0, this);
66     } else {
67     // message that no suitable provider was found
68     hndl.sendEmptyMessage(TrainInfoList.NOPROVIDER);
69     }
70     }
71     @Override
72     public void onLocationChanged(Location location) {
73     Log.i("Location", "Got location fix " + location.getLatitude() + ", " + location.getLongitude() + " accuracy=" + location.getAccuracy() + " provider=" +location.getProvider());
74    
75 torben 241 savedLocation = new Location(location); //save a copy
76    
77 torben 237 if (location.getProvider().equals("gps") && location.getAccuracy() > 100) //if we have a gps provider lets wait for a more precise fix
78     return;
79    
80     locManager.removeUpdates(this);
81     hndl.sendEmptyMessage(TrainInfoList.GOTLOCATION);
82 torben 241 }
83    
84     public void findNearestStations() {
85     findNearestStations(savedLocation);
86     }
87    
88     public void findNearestStations(Location location) {
89 torben 254 provider.lookupStations(location);
90 torben 253
91 torben 254 if ( provider.getStations().size() > 0)
92 torben 237 hndl.sendEmptyMessage(TrainInfoList.GOTSTATIONLIST);
93 torben 253 else
94 torben 237 hndl.sendEmptyMessage(TrainInfoList.LOOKUPSTATIONFAILED);
95     }
96    
97    
98     @Override
99     public void onProviderDisabled(String provider) {
100     // TODO Auto-generated method stub
101    
102     }
103    
104    
105     @Override
106     public void onProviderEnabled(String provider) {
107     // TODO Auto-generated method stub
108    
109     }
110    
111    
112     @Override
113     public void onStatusChanged(String provider, int status, Bundle extras) {
114     // TODO Auto-generated method stub
115    
116     }
117 torben 253
118 torben 252
119 torben 241 public static void injectMockLocation(Context cntx) {
120 torben 252 Location odder = new Location("gps2");
121     odder.setLatitude(55.976632);
122     odder.setLongitude(10.16407);
123 torben 241
124 torben 252 Location kbh = new Location("gps2"); //Christiansborg 55.675092,12.578573
125     kbh.setLatitude(55.675092);
126     kbh.setLongitude(12.578573);
127    
128 torben 253 Location bjbro = new Location("gps2");
129     bjbro.setLatitude(56.380745);
130     bjbro.setLongitude(9.655609);
131    
132 torben 256 Location hillerod = new Location("gps");
133     hillerod.setLatitude(55.929177);
134     hillerod.setLongitude(12.308095);
135 torben 253
136 torben 241 LocationManager lm = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE);
137 torben 252 if (lm.getProvider("gps2") == null)
138     lm.addTestProvider("gps2", false, true, true, false, false, false, false, 0, Criteria.ACCURACY_FINE );
139 torben 241 lm.setTestProviderEnabled("gps2", true);
140 torben 256 lm.setTestProviderLocation("gps2", hillerod);
141 torben 241 }
142 torben 252
143     public static void removeMockLocation(Context cntx) {
144     LocationManager lm = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE);
145     if (lm.getProvider("gps2") != null)
146     lm.removeTestProvider("gps2");
147     }
148 torben 237 }

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