title: Refresh page content after dismiss popover . IONIC 3
body: <p>I have an application tabs whit 4 Tabs, and each tab shows some data according to a configuration. The page have a header that contains a popover component with the settings option on it. 
  After the user set some configuration on settings and back to some tab page, that page must refresh the content.</p>
  
  <p>I am using the ionViewDidEnter or ionViewWillEnter lifecycle events and check if the previous settings have been changed but the event hasn't been being catch, only when I change to other tab page.</p>
  
  <p>Tab page A</p>
  
  <pre><code>export class HomePage implements OnInit {
    ionViewDidEnter(){
      if(this.client.doClientChanged(this.clientName)){
        console.log("changed");
      }
      else{
        console.log("not changed");
      }
    }
    ionViewWillEnter(){
      console.log("test")
    }
  }
  </code></pre>
  
  <p>Header component</p>
  
  <pre><code>export class PrimeHeaderComponent {
    constructor(public popoverCtrl: PopoverController) {}
  
    presentPopover(event: any) {
      let popover = this.popoverCtrl.create(MenuPage);
      popover.present({
        ev: event
      });
    }
  }
  </code></pre>
  
  <p>Popover Component</p>
  
  <pre><code>export class MenuPage {
  
    constructor(
      public viewCtrl: ViewController, private navCtrl: NavController) {}
  
    openConfig(){    
      this.navCtrl.push(ConfigPage);    
    }
  }
  </code></pre>
  
  <p>When I chose the configuration, I back to the previous page that still shows the popover, and when I dismiss the popover, nothing happen with the lifecycle events.</p>