title: How to track app by user id : Google Analytics
body: <p>I am new to Google Analytics.
  I want to track my application by unique user id.
  I am using <code>Google Analytics SDK for Android v3</code>.
  I have this code on <code>onStart()</code>.I read about user id and created a new view for user tracking.</p>
  
  <pre><code>Tracker tracker = GoogleAnalytics.getInstance(this).getTracker("UA-xxx-2");
  tracker.set(Fields.SCREEN_NAME, "Main Acitivty");
  tracker.set("&amp;uid", id);
  tracker.send(MapBuilder.createAppView().build());
  </code></pre>
  
  <p>But I am not getting how can I get this uid in my Google Analytics Console,
  I am trying to track user by their user_id , so I can get complete report of particular user.
  I am able to get count of the total active user , screens and hit events.
  But I didn't get any success on getting the same report user-wise.
  I also tried to create custom dimension and metrics but those are also not reflecting on account.I have no idea Where can I check this field.</p>
  
  <p>For custom variables :</p>
  
  <pre><code>  easyTracker.send(MapBuilder
           .createAppView()
           .set(Fields.customDimension(1), "premiumUser")
          .build()
           );
  </code></pre>
  
  <p>I have searched , but I didn’t find any good tutorial on this.</p>
  
  <p>Any help, suggestion , reference link would be greatly appreciated.
  Thanks.</p>