Clicking the device back button closes the app instead of going back to previous page

Question

If click any ion-item it open the desired page but if i click device back button it close the app rather than going back to previous page in android:

Th

Answer 1

Import NavController in your app.component.ts and use below code.

import { NavController} from '@ionic/angular';

constructor( private nav: NavController ) {this.initializeApp();}

ngOnInit() {
    this.plateform.backButton.subscribe(res => {
      this.nav.goBack('');
    });
  }