title: Enabling Chrome Custom Tabs for Facebook login using Android SDK
body: <p>I am using Facebook SDK version 4.11.0 in my app.</p>
  
  <p>As per the steps outlined on the <a href="https://developers.facebook.com/docs/facebook-login/android">Official docs page</a>, I have added following things inside manifest file to enable Chrome Custom Tabs.              </p>
  
  <pre><code>&lt;activity
      android:name="com.facebook.FacebookActivity"
      android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
      android:label="@string/app_name"
      android:theme="@android:style/Theme.Translucent.NoTitleBar" /&gt;
  
  &lt;activity
      android:name="com.facebook.CustomTabActivity"
      android:exported="true"&gt;
      &lt;intent-filter&gt;
         &lt;action android:name="android.intent.action.VIEW" /&gt;
         &lt;category android:name="android.intent.category.DEFAULT" /&gt;
         &lt;category android:name="android.intent.category.BROWSABLE" /&gt;
         &lt;data android:scheme="@string/fb_login_protocol_scheme" /&gt;
      &lt;/intent-filter&gt;
  &lt;/activity&gt;
  
  &lt;meta-data
      android:name="com.facebook.sdk.ApplicationId"
      android:value="@string/app_id" /&gt;
  </code></pre>
  
  <p><code>fb_login_protocol_scheme</code> is added to <code>strings.xml</code> with value <strong>'fb+app_id'</strong></p>
  
  <p>Authentication process is working fine without any issue.<br>
  Only concern is when I click on login button, the login dialog doesn't opens up in Chrome Custom Tabs but in the usual webview dialog format.</p>
  
  <p>Is there something here missing to be added to the project to enable Chrome Custom Tabs?</p>