title: Ionic 2: Event publish/subscribe not working
body: <p>The user logs in, their login info is set to local storage and they are forwarded to DashboardPage. 
    All I want to do is once user is logged in and user is forwarded to Dashboard I want to update Swipe menu with Logged in user details.</p>
  
  <p>In constructor of Dashboard page, I have published the event like this - </p>
  
  <pre><code> let userinfo = this.storagehelper.getStorageItem("userinfo");
    this.event.publish("app:userLoggedIn", userinfo);
  </code></pre>
  
  <p>and in <code>app.component.ts</code>, I subscribe to the event like this -</p>
  
  <pre><code> this.event.subscribe("app:userLoggedIn", userObject =&gt; {
         console.warn("Listening to published event");
         this.setMenuUsers(userObject);
    });
  
    setMenuUsers(userinfo){
        this.LoginUserEmail = userinfo.UserName;
        this.LoginUserName = userinfo.EmployeeName;
        this.LoginUserCompany = userinfo.CompanyName;
    }
  </code></pre>
  
  <p><strong>PROBLEM</strong></p>
  
  <p>The menu is not getting updated, subscribe event is not working at all. Can anybody help what I am doing wrong?</p>