title: Google maps not showing on android in release mode
body: <p>I am trying to release my app, but having a problem with google maps.
  The app contains an activity (MapActivity) that displays a map. When running in debug mode, the map works fine.
  I signed my app in release mode, and got SHA1.
  I created a new android key on Google console as required (SHA1;packageName). Got the API Key</p>
  
  <p>In my App, I referenced a copy of google-play-services-lib as required.
  I am using ADT.</p>
  
  <p>map.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;fragment xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/map"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:name="com.google.android.gms.maps.SupportMapFragment" /&gt;
  </code></pre>
  
  <p>MapActivity.java</p>
  
  <pre><code>public class MapActivity extends FragmentActivity {
  
  private GoogleMap map;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.map);
  
      map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
                          .getMap();
    }
  </code></pre>
  
  <p>AndroidManifest.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.rentalcar"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  
  
  &lt;uses-sdk
      android:minSdkVersion="8"
      android:targetSdkVersion="16" /&gt;
  &lt;uses-permission android:name="android.permission.INTERNET"&gt;&lt;/uses-permission&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;
  &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt;
  
  &lt;uses-feature
  android:glEsVersion="0x00020000"
  android:required="true"/&gt;
  
  &lt;permission
        android:name="com.example.rentalcar.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/&gt;
      &lt;uses-permission android:name="com.example.rentalcar.permission.MAPS_RECEIVE"/&gt;
  
  
  &lt;application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme"
       &gt;
  
      &lt;activity
          android:name="com.example.rentalcar.MainActivity"
          android:label="@string/app_name"
          android:screenOrientation="portrait" &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;activity
          android:name="com.example.rentalcar.MapActivity"
          android:label="@string/title_activity_map"
          android:screenOrientation="portrait" &gt;
      &lt;/activity&gt;
  
      &lt;meta-data
          android:name="com.google.android.maps.v2.API_KEY"
          android:value="My_Key"/&gt;
  
  &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>The only weird thing is that when I use keytool to get SHA1 I get "Signature Algorithm name: SHA256withRSA. can this be the problem? If yes, how can I change it?</p>
  
  <p><img src="https://i.stack.imgur.com/vDeMR.png" alt="using keytool to get the certificate fingerprints"></p>
  
  <p>I am kind of stuck here! Thank you for any help!</p>