Facebook

To turn on Facebook authorization via SDK you need add ApplicationId and provider to AndroidManifest.xml.

Please, ask your manager for Facebook Application Id and Facebook ClientToken.

<meta-data android:name="com.facebook.sdk.ApplicationId"
    android:value=$your_facebook_application_id/>
<provider android:authorities="com.facebook.app.FacebookContentProvider*APP_ID*"
    android:name="com.facebook.FacebookContentProvider"
    android:exported="true"/>
<meta-data
    android:name="com.facebook.sdk.ClientToken"
    android:value="$your_facebook_client_token"/>