Ionic 4 : Bind data from page to tabs pages

Hello,

I have one page ‘details’ with 1 object “BT” and 4 tabs

<ion-header>
  <ion-toolbar color="primary">
    <ion-buttons slot="start">
      <ion-menu-button></ion-menu-button>
      <ion-back-button></ion-back-button>
    </ion-buttons>
    <ion-title>Bon travail {{BT.id}}</ion-title>
  </ion-toolbar>
</ion-header>


<ion-content>

  <ion-tabs>
    <ion-tab-bar slot="bottom">
      <ion-tab-button tab="infos">
        <ion-icon name="information-circle"></ion-icon>
        <ion-label>Informations</ion-label>
      </ion-tab-button>
      <ion-tab-button tab="temps">
        <ion-icon name="construct"></ion-icon>
        <ion-label>Matériel</ion-label>
      </ion-tab-button>
      <ion-tab-button tab="materiel">
        <ion-icon name="time"></ion-icon>
        <ion-label>Temps</ion-label>
      </ion-tab-button>
      <ion-tab-button tab="validate">
        <ion-icon name="checkbox"></ion-icon>
        <ion-label>Valider</ion-label>
      </ion-tab-button>
    </ion-tab-bar>
  </ion-tabs>

</ion-content>

What is the best way to show/edit datas of my object “BT” from the differents tabs ?

Thank you for your help

WIth ionic 3, i was using rootparams

  <ion-tabs>
    <ion-tab [root]="infos" [rootParams]="BT" tabTitle="Informations" tabIcon="information-circle"></ion-tab>
    <ion-tab [root]="materiel" [rootParams]="BT" tabTitle="Matériel" tabIcon="construct"></ion-tab>
    <ion-tab [root]="temps" [rootParams]="BT" tabTitle="Temps" tabIcon="time"></ion-tab>
    <ion-tab [root]="validate" tabTitle="Valider" tabIcon="checkbox"></ion-tab>
  </ion-tabs>