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POI cannot get GPS coordinates
 

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    <p>My problem is that I cannot get GPS coordinates by using LocationManager class and LocationListener. This is the code I call in OnCreate():</p> <pre><code> locMgr = (LocationManager)getSystemService(Context.LOCATION_SERVICE); currentLocListener = new MyLocationListener(); locMgr.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, currentLocListener); locMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, currentLocListener); </code></pre> <p>And I have a class MyLocationListener that implements class LocationListener</p> <pre><code>public class MyLocationListener implements LocationListener { @Override public void onLocationChanged(Location location) { // TODO Auto-generated method stub String coordinates[] = {""+location.getLatitude(),""+location.getLongitude()}; double lat = Double.parseDouble(coordinates[0]); double lng = Double.parseDouble(coordinates[1]); GeoPoint p = new GeoPoint((int)(lat*1E6), (int)(lng*1E6)); mc.animateTo(p); mc.setZoom(19); MyMapOverlays marker = new MyMapOverlays(p); List&lt;Overlay&gt; listofOverLays = mapview.getOverlays(); listofOverLays.clear(); listofOverLays.add(marker); mapview.invalidate(); } @Override public void onProviderDisabled(String provider) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), "GPS is disabled", Toast.LENGTH_SHORT).show(); } @Override public void onProviderEnabled(String provider) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), "GPS is Enabled", Toast.LENGTH_SHORT).show(); } @Override public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub }} </code></pre> <p>I can get the location by mocking location in Emulator Control in DDMS. So I try to test on my real phone. when I install it on my phone, it can't get the current location automatically although I turned on GPS and wifi.</p> <p>I try to run another google map app from market on to my real phone, it worked fine. I don't understand what is wrong with the code...can anyone help me?</p> <p><b>LOGCAT &amp; DEBUG</b></p> <pre><code>DalvikVM[localhost:8631] Thread [&lt;1&gt; main] (Suspended (exception NullPointerException)) DashboardActivity$MyLocationListener.onLocationChanged(Location) line: 75 LocationManager$ListenerTransport._handleMessage(Message) line: 191 LocationManager$ListenerTransport.access$000(LocationManager$ListenerTransport, Message) line: 124 LocationManager$ListenerTransport$1.handleMessage(Message) line: 140 LocationManager$ListenerTransport$1(Handler).dispatchMessage(Message) line: 99 Looper.loop() line: 123 ActivityThread.main(String[]) line: 4627 Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method] Method.invoke(Object, Object...) line: 521 ZygoteInit$MethodAndArgsCaller.run() line: 868 ZygoteInit.main(String[]) line: 626 NativeStart.main(String[]) line: not available [native method] Thread [&lt;6&gt; Binder Thread #2] (Running) Thread [&lt;5&gt; Binder Thread #1] (Running) Thread [&lt;7&gt; MapService] (Running) Thread [&lt;8&gt; TrafficService] (Running) Daemon Thread [&lt;10&gt; RefQueueWorker@org.apache.http.impl.conn.tsccm.ConnPoolByRoute@4610b970] (Running) </code></pre> <p>LINE 75 giving error.</p>
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    1. COCan you post your android-manifest.xml? I think you forgot to add the location permissions to it.
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    2. CO@Marcelo Just being curious, I also think permissions are the culprits. But according to the docs (http://developer.android.com/reference/android/location/LocationManager.html#requestLocationUpdates%28java.lang.String,%20long,%20float,%20android.location.LocationListener%29), the method throws a `SecurityException` if "no suitable permission is present". Shouldn't this exception appear in logcat or even throw an ANR if it were run directly in the event thread?
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    3. COI have written all these permissions: <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <uses-library android:name="com.google.android.maps" />
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