title: google maps shows Blank page with left under corner google logo
body: <p>I am trying to add a map activity inside Android studio 
  i have created a new project and added a new map activity
  i have got the link inside the file :</p>
  
  <blockquote>
    <p><code>google_maps_api.xml</code></p>
  </blockquote>
  
  <p>and then copied it at <code>developer.android.com</code> and got the Api key for my application 
  i am sure of all my permissions and the <code>sha-1</code> is correct.
  where is the problem ?<br>
  the file: <code>AndroidManifest.xml</code> :</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="HereGoesthepackage.mymaptest11"&gt;
  
  
      &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&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.ACCESS_COARSE_LOCATION" /&gt;
  
      &lt;uses-permission android:name="com.example.barcodelibrary.permission.MAPS_RECEIVE"/&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;application
          android:allowBackup="true"
          android:icon="@mipmap/ic_launcher"
          android:label="@string/app_name"
          android:roundIcon="@mipmap/ic_launcher_round"
          android:supportsRtl="true"
          android:theme="@style/AppTheme"&gt;
  
          &lt;meta-data
              android:name="com.google.android.geo.API_KEY"
              android:value="@string/google_maps_key" /&gt;
  
          &lt;activity
              android:name=".MapsActivity"
              android:label="@string/title_activity_maps"&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;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p><strong>Edit:</strong></p>
  
  <blockquote>
    <p>activity_maps.xml</p>
  </blockquote>
  
  <pre><code>&lt;fragment xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:map="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/map"
      android:name="com.google.android.gms.maps.SupportMapFragment"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context="HereGoesthePackage.mymaptest11.MapsActivity" /&gt;
  </code></pre>
  
  <blockquote>
    <p>Mapsactivity.java:</p>
  </blockquote>
  
  <pre><code>public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
  
      private GoogleMap mMap;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_maps);
          SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                  .findFragmentById(R.id.map);
          mapFragment.getMapAsync(this);
      }
  
      @Override
      public void onMapReady(GoogleMap googleMap) {
          mMap = googleMap;
          LatLng sydney = new LatLng(-34, 151);
          mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
          mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
      }
  }
  </code></pre>