Ionic back button whitout defaultHref

I have this code :

<ion-back-button (click)="backClick()" *ngSwitchCase="1"></ion-back-button>

in my backClick I have :

this.back.emit({currentStep: 1});

The idea is that I want to emit an event when click on ion-back-button. And after that redirect to an url. But whitout defaultHref the arrow back is not displayed. From what I saw is not possible to do this kind of manipulations using ion-back-button ?

Thx in advancen abd sorry for my english.

Solution

my friend, There should be a defaultHref when you use the back button, If not, the icon will not be displayed, this link is the official documentation. (-;

An example:

<ion-header>
  <ion-toolbar>
    <ion-buttons>
      <ion-back-button defaultHref="/yourlink"></ion-back-button>
    </ion-buttons>
    <ion-title>Your title</ion-title>
  </ion-toolbar>
</ion-header>

<ion-content>
...
</ion-content>