title: Google Maps API V2 blank map after installation on real device
body: <p>When I emulate the app from eclipse using the device everything's OK, but after I generate the apk file and have it installed, my map is blank.</p>
  
  <p>I followed these steps:</p>
  
  <ol>
  <li><p>Generate a new keytool</p>
  
  <pre><code>keytool -genkey -v -keystore my-keystore-name.keystore
          -alias myKey1 -keyalg RSA -keysize 2048 -validity 20000 
  </code></pre></li>
  <li><p>From Eclipse I "Export signed application package" using the keystore file (and key) I got from step 1.</p></li>
  <li><p>Copy the apk to the device and select "package installer"</p></li>
  </ol>
  
  <p>Manifest:</p>
  
  <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="apt.login"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="11"
          android:targetSdkVersion="17" /&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET"/&gt;
  
      &lt;permission
  
      android:name="apt.login.permission.MAPS_RECEIVE"
  
      android:protectionLevel="signature"/&gt;
  
      &lt;uses-permission
      android:name="apt.login.permission.MAPS_RECEIVE"/&gt;
  
      &lt;uses-permission
      android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/&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="android.permission.ACCESS_COARSE_LOCATION"/&gt;
  
      &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt;
  
  
      &lt;application
          android:permission="android.permission.WRITE_EXTERNAL_STORAGE"
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" 
          android:testOnly="false"
          android:debuggable="true"&gt;    
  
  
  
           &lt;uses-library android:name="com.google.android.maps" /&gt;
           &lt;meta-data
  
              android:name="com.google.android.maps.v2.API_KEY"
  
              android:value="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"/&gt;
  
           &lt;meta-data
      android:name="com.google.android.gms.version"
      android:value="@integer/google_play_services_version" /&gt;
  
  
          &lt;activity
              android:name="apt.login.UIactivity.Login"
              android:label="@string/app_name" &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="apt.login.UIactivity.Loading"&gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="apt.login.UIactivity.Mapa"&gt;
          &lt;/activity&gt;
  
          &lt;activity
              android:name="apt.login.UIactivity.Splitbar"
              android:label="@string/app_name" &gt;
          &lt;/activity&gt;
  
      &lt;/application&gt;
  
      &lt;/manifest&gt;
  </code></pre>