title: getLastKnownLocation() always returning null, all providers are DummyLocationProvider
body: <p>I have seen many posts regarding this problem, but none of them offered a solution for me.</p>
  
  <p>I am trying to get the user position through the GPS (or, ultimately, any other valid provider). But I am always getting null locations. I do get a map, and can set an arbitrary location, is the providers that don't work.</p>
  
  <p><strong>I have my MAPS key properly set</strong> (also checked that it was the right one), all necessary permissions set (<code>android.permission.INTERNET</code>, <code>android.permission.ACCESS_COARSE_LOCATION</code>, <code>android.permission.ACCESS_FINE_LOCATION</code>) and in fact, all seemed to be working just fine yesterday!</p>
  
  <p>I tried getting all possible providers with this code:</p>
  
  <pre><code>List&lt;String&gt; providers = locManager.getAllProviders();
  for (String provider : providers) {
      printProvider(provider);
  }
  </code></pre>
  
  <p>Which shows all providers (4, in my case) are DummyLocationProviders.</p>
  
  <p>I am trying to run my app <strong>on the phone, not the emulator</strong> (although I also tried with the emulator, with GPS enabled, to no avail).</p>
  
  <p>This is the code I am using to fetch the location (which, again, worked just fine yesterday):</p>
  
  <pre><code>//Get criteria
          Criteria criteria = new Criteria();
          criteria.setAccuracy(Criteria.ACCURACY_FINE);
  
          //Get best provider
          String  bestProvider = locManager.getBestProvider(criteria, false);
          printProvider(bestProvider);
  
  
  
          //get the current location (last known location) from the location manager
          Location location = locManager.getLastKnownLocation(bestProvider);
  
          //if location found display as a toast the current latitude and longitude
          if (location != null) {
              Toast.makeText(this, "Current location:\nLatitude: " + location.getLatitude() + "\n" + "Longitude: " + location.getLongitude(), Toast.LENGTH_LONG).show();
  
              point = new GeoPoint((int) (location.getLatitude()*1E6),(int)(location.getLongitude() *1E6));
              controller.animateTo(point);
          } else {
              Toast.makeText(this, "Cannot fetch current location!", Toast.LENGTH_LONG).show();
          }
  </code></pre>
  
  <p>My manifest file:
      </p>
  
  <pre><code> &lt;uses-sdk
          android:minSdkVersion="10"
          android:targetSdkVersion="10" /&gt;
      &lt;uses-permission android:name="android.permission.INTERNET"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt;
  
      &lt;application
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name=".activities.MainActivity"
              android:label="@string/title_activity_main" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
  
          &lt;uses-library android:name="com.google.android.maps" /&gt;
  
          &lt;activity
              android:name=".activities.GoogleMapsActivity"
              android:label="@string/title_activity_maps" &gt;
          &lt;/activity&gt;
  
          &lt;activity
              android:name=".activities.MyMapsActivity"
              android:label="@string/title_activity_maps" &gt;
          &lt;/activity&gt;
  &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>