title: android google map issues
body: <p>I am currently building an android app. I understand the basics and I did a number of apps but now my project is bigger. My app include a number of screens with NavigationDrawer included which forces me to use an extension of Fragment class on every class I want to be displayed on my application. 
  Here is my problem -some time ago I create an app a simple one page google maps screen and it works just fine. I want to do the same thing on the app I am currently working on but all it gives me when I go to the page is the google log at the bottom left screen and the rest is grey like view (no map is displayed).I searched for solution in a lot of places including this site and I could get as an answer was that it might have to do with my API key given to me by google.I ckecked that and I am pretty sure it is not from the key because I applied it on my one page google map app and it worked perfect.I also have all the permissions needed I checked that like 6 times.So my conclusion is there is something in the code that is preventing the map to be displayed.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>import android.os.Bundle;
  import android.support.v4.app.Fragment;
  import android.support.v4.app.FragmentActivity;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  
  import com.google.android.gms.maps.GoogleMap;
  import com.google.android.gms.maps.SupportMapFragment;
  import com.google.android.gms.maps.model.LatLng;
  import com.google.android.gms.maps.model.MarkerOptions;
  
  public class guide extends Fragment {
  
  
  
      @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
                               Bundle savedInstanceState) {
          // inflat and return the layout
          View v = inflater.inflate(R.layout.test, container,
                  false);
  
          return v;
      }
  
      class HoldFragmentPlace extends FragmentActivity{
  
          private GoogleMap mMap;
  
          public HoldFragmentPlace(){
  
          }
  
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
                               Bundle savedInstanceState) {
          // inflat and return the layout
          View v = inflater.inflate(R.layout.test, container,
                  false);
  
          return v;
      }
  
      @Override
      protected void onResume() {
          super.onResume();
          setUpMapIfNeeded();
      }
  
      private void setUpMapIfNeeded() {
          // Do a null check to confirm that we have not already instantiated the map.
          if (mMap == null) {
              // Try to obtain the map from the SupportMapFragment.
              mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
                      .getMap();
              // Check if we were successful in obtaining the map.
              if (mMap != null) {
                  setUpMap();
              }
          }
      }
  
          private void setUpMap() {
              mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
          }
  
  
      }
  
  }
  </code></pre>
  
  <p>I need that Fragment extension for my NavigationDrawer to work so I create an inner class and applied the code for the map there.</p>
  
  <p>Here is what I have in my manifest:</p>
  
  <pre><code>     &lt;meta-data
          android:name="com.google.android.maps.v2.API_KEY"
          android:value="@string/google_maps_key" /&gt;
  
  &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
  &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt;
  &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
  &lt;uses-permission         android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /&gt;
  
  &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /&gt;
  &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
  </code></pre>
  
  <p>And here is my xml for the map:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical" android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
  
      &lt;com.google.android.gms.maps.MapView
          android:id="@+id/mapView"
          android:layout_width="match_parent"
          android:layout_height="fill_parent"
          class="com.google.android.gms.maps.SupportMapFragment"
          android:layout_marginTop="-470dp" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I also tried a few other variations of the java code some of them does not include inner class and the result is still the same.I am either missing something very fundamental or I am misunderstanding some conception about Android.If you have read all that thank you for the spared time!</p>