I created an Ionic 2 app with tabs using the following command:
ionic starts project1 tabs --v2
Next, I added a new page and provider to the project:
ionic g provider authService
ionic g page loginPage
After a successful login, I set the root to the TabsPage:
this.nav.setRoot(TabsPage)
However, after logging out, the tab panel still remained visible and all pages were still accessible.
How can I completely clear all pages upon logout and hide the tab panel as well?
I attempted to replicate a project similar to yours and included a login button on the login page. The click event is bound to:
this.navCtrl.setRoot(TabsPage);
Within the TabsPage component, try utilizing the App controller in the following manner:
import { Component } from '@angular/core';
import { App } from 'ionic-angular';
import { HomePage } from '../home/home';
import { AboutPage } from '../about/about';
import { ContactPage } from '../contact/contact';
import { LoginPage } from '../login-page/login-page';
@Component({
templateUrl: 'tabs.html'
})
export class TabsPage {
// this informs the tabs component which Pages
// should be each tab's root Page
tab1Root: any = HomePage;
tab2Root: any = AboutPage;
tab3Root: any = ContactPage;
constructor(public appCtrl: App) {
}
logout() {
this.appCtrl.getRootNav().setRoot(LoginPage);
}
}
Let's imagine that we add a logout button on the navigation bar in tabs.html as shown below:
<ion-header>
<ion-navbar>
<ion-title>Home</ion-title>
<ion-buttons end>
<button ion-button color="primary" (click)="logout()">Logout</button>
</ion-buttons>
</ion-navbar>
</ion-header>
<ion-tabs>
<ion-tab [root]="tab1Root" tabTitle="Home" tabIcon="home"></ion-tab>
<ion-tab [root]="tab2Root" tabTitle="About" tabIcon="information-circle"></ion-tab>
<ion-tab [root]="tab3Root" tabTitle="Contact" tabIcon="contacts"></ion-tab>
</ion-tabs>
When working with Angular, you can utilize the Router and include the replaceUrl attribute from the NavigationExtras:
constructor(private router: Router) { }
logout() {
this.router.navigate(['/login'], { replaceUrl: true });
}
I encountered a similar situation where I needed to reset the navigation history if specific conditions were not met and redirect the user back to the initial page in the sequence. Even though, upon clicking the back button, it would still navigate back to the previously active page. Resolving this issue involved defining the root page when the condition was not fulfilled, followed by pushing the initial page so that pressing the back button would automatically lead the user back to the root page.
// Define the root page to clear navigation history.
this.navCtrl.setRoot('RootPage').then(response => {
// Once successful, push the first page in line.
this.navCtrl.push('FirstPage');
});
If you want to clear all the navigation history in Ionic (i.e pop all the pages from Nav Stack), here's an easy and simple way to do it.
The most straightforward method is to utilize NavController from @ionic/angular.
Follow these steps:-
1) Start by injecting the NavController service in the constructor:
constructor(private navCtrl: NavController) { }
2) In your logout method where you are logging out the user, simply add this line of code:
this.navCtrl.navigateRoot('/login'); // You can replace 'login' with the page you want to redirect to after logout
The navigateRoot method removes all existing pages and adds the specified page to the stack.
Please note that this approach is specific to Angular with Ionic. For React or Vue, you may need to explore alternative methods.
I hope this information proves helpful to you or someone else :-)
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