Google Maps v2 Simple Application Not Working

Question

I am following this tutorial. Here are all my related files: activity_main.xml

Answer 1

You need do give External Storage permission with both meta-data:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <application
    <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
         <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyCm5xJy0AwN4TfXM6ccpfj2GhqZneFCyiM" />
     </application>

Answer 2

You need to have two meta-data fields. One is required for google play services in general, the second one on top for using maps.

Example snippet from the sample application you should have in [android-sdk]/extras/google/google_play_services/samples/maps/AndroidManifest.xml

  <application
    android:icon="@drawable/ic_launcher"
    android:label="@string/demo_title"
    android:hardwareAccelerated="true">
    <!-- ** You need to replace the key below with your own key. **
         The example key below will not be accepted because it is not linked to the
         certificate which you will use to sign this application.
         See: https://developers.google.com/maps/documentation/android/start
         for instructions on how to get your own key. -->

    <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyCvGBr5in13NK2yYBR7lhXTtnxj3mrXQy4" />

    <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

Answer 3

you need

<application..>
    <meta-data
         android:name="com.google.android.gms.version"
         android:value="@integer/google_play_services_version" />
    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="KEY" />

    ...
</application>