Tabs component, ionViewWillEnter is not called on the active Tab, just the page holding the Tabs when doing nav back.

[epetre]

Ionic version:
[ ] 1.x
[x] 2.x

I'm submitting a ...
[x] bug report
[ ] feature request

Current behavior:
When navigating out of a page with a Tabs component and coming back, the ionViewWillEnter is called on the page holding the tabs component, but not on the active tab.

Expected behavior:
This event should probably be fired on the active tab.

Steps to reproduce:

1. In a page with tabs, navigate out from the root like this
2. this.app.getRootNav().push(SomeOtherPage);
3. Navigate back to return to the tabs page

Cordova CLI: 6.4.0
Ionic Framework Version: 2.0.0-rc.4
Ionic CLI Version: 2.1.18
Ionic App Lib Version: 2.1.9
Ionic App Scripts Version: 0.0.48
ios-deploy version: 1.8.6
ios-sim version: 5.0.8
OS: macOS Sierra
Node Version: v4.4.3
Xcode version: Xcode 8.2.1 Build version 8C1002

Sorry about not creating a Plunker, I am really in a rush this month.

Temporary work around
In the parent page that holds the Tabs component:

  isFirstLoad = true;
  ionViewDidEnter(){
    if(!this.isFirstLoad){
      if(this.tabs.getSelected()){
        let t = this.tabs.getSelected();
        let views = t.getViews();
        let v = views[views.length-1].instance;
        if(v.forceWillEnter){
          v.forceWillEnter();
        }
      } 
    } 
    this.isFirstLoad = false;
  }

In the child page (a Tab), I added this:

  forceWillEnter = () => {
    this.ionViewWillEnter();
  }

[vintage]

I can confirm that it's still an issue in Ionic 2.1.0.

[ippeiukai]

I think this is not just the tabs but happening to any nested nav. The ionViewWillEnter is called on the page that is directly under the nav that is going through a transition, but if that page contained a child nav, its active page's ionViewWillEnter does not get called.

[anjildhamala]

Updating the issue.
version: 3.12.0

I'm navigating from ' TemplatePage' that is in tab navigation to another page using this.navCtrl.parent.parent.push('AddTemplate') and coming back to 'TemplatePage' with the default back button provided by ionic. I have a ionViewWillEnter() function in 'TemplatePage' with a log but that back action doesn't seem to trigger it. Upon changing tabs and coming back, it does fire.

[brunoescalona-zz]

The same problem here.
ionViewWillEnter() not triggering in the tab page only in the main page containing all the tabs when coming back from another view push from the tab.

[erperejildo]

is this fixed?

[ygorgasparin]

I have the same problem here, but I can get a workaround using:

this.appCtrl.getActiveNav().parent.parent

[LautaroLorenz]

@Component({
  selector: 'app-my-page',
  templateUrl: './my-page.page.html',
  styleUrls: ['./my-page.page.scss'],
})
export class MyPage {
 ionViewWillEnter() {
    console.log('ionViewWillEnter');
  }
}

to

import { ..., OnDestroy } from '@angular/core';

@Component({
  selector: 'app-my-page',
  templateUrl: './my-page.page.html',
  styleUrls: ['./my-page.page.scss'],
})
export class MyPage implements OnDestroy {
 ionViewWillEnter() {
    console.log('ionViewWillEnter');
  }

  ngOnDestroy(): void {
    console.log('ngOnDestroy');
  }
}

automatically "ionViewWillEnter" starts firing after leave TabsPage and enter on it again
working on Beta ionic 4

[ionitron-bot]

This issue has been automatically identified as an Ionic 3 issue. We recently moved Ionic 3 to its own repository. I am moving this issue to the repository for Ionic 3. Please track this issue over there.

If I've made a mistake, and if this issue is still relevant to Ionic 4, please let the Ionic Framework team know!

Thank you for using Ionic!

[ionitron-bot]

Issue moved to: ionic-team/ionic-v3#159