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POAndroid - Unable to get the gps location on the emulator
 

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  1. POAndroid - Unable to get the gps location on the emulator
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    <p>i'm tring to use the gps on the android emulator, i've the following code:</p> <pre><code>public class NL extends Activity { private LocationManager locmgr = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.nl); locmgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE); Criteria crit = new Criteria(); crit.setAccuracy(Criteria.ACCURACY_FINE); String provider = locmgr.getBestProvider(crit, true); Location loc = locmgr.getLastKnownLocation(provider); Toast msg = Toast.makeText(this, "Lon: " + Double.toString(loc.getLongitude()) + " Lat: " + Double.toString(loc.getLatitude()), Toast.LENGTH_SHORT); msg.show(); } } </code></pre> <p>i've added the following line at the manifest:</p> <pre><code>&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt; </code></pre> <p>and i've set the gps location with the DDMS method and either with the geo fix method, but when i run the code, i get a NullPointerExeption at the Toast line, probably cause loc is null.</p> <p>I don't understand where the error is... can you help me please?</p> <hr> <p>UPDATE!</p> <p>Thanks for your help, now i use the following code and i don't get any error, but it doesn't run the code inside onChangeLocation... it doesn't run the Toast and don't return any message in the log!</p> <pre><code> public class NL extends Activity { private LocationManager locmgr = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.nl); locmgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE); // Define a listener that responds to location updates LocationListener locationListener = new LocationListener() { public void onLocationChanged(Location loc) { // Called when a new location is found by the network location provider. Log.i("NOTIFICATION","onLocationChenged Triggered"); Toast msg = Toast.makeText(NetworkLocator.this, "Lon: " + Double.toString(loc.getLongitude()) + " Lat: " + Double.toString(loc.getLatitude()), Toast.LENGTH_SHORT); msg.show(); } public void onStatusChanged(String provider, int status, Bundle extras) {} public void onProviderEnabled(String provider) {} public void onProviderDisabled(String provider) {} }; // Register the listener with the Location Manager to receive location updates locmgr.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); } } </code></pre> <p>Thanks!</p>
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    1. COdid you verify if *locmgr.getBestProvider* actually returns "gps"? anyway, you should definitely implement a *LocationListener* and pass it to LocationManager with *requestLocationUpdates()*
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    2. COthe getBestProvider return "gps". have i to add a locationlistener even if i try to get the locatio with lastKnownLocation? thanks for your help
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    3. CO@Marco Faion Please keep ur answers updated... I answered already once to you and you didn't give any feedback on the answer! > `http://stackoverflow.com/questions/4591765/android-sqlite-database-method-undefined-fot-type/4591843#4591843`
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