ionic stop fab from opening when clicking on fab code example

Example 1: ionic deactivate fab button

<ion-fab>
  <button ion-fab [disabled]="!isValidInput()" (click)="add()">
    <ion-icon name="checkmark"></ion-icon>
  </button>
</ion-fab>

Example 2: ionic stop fab from opening when clicking on fab

//Set the active of to true then the fab will toggle it back to false

aFab._listsActive = true;