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Of course not, here, have a gist and comment any ideas, always room for improvement:

gist.github.com

https://gist.github.com/Luchillo/fc3d01f29580d5067541

index.md

Busy indicator backup solution:

Hi there people this gist aims to suply a replacement until Ionic 2 busy operator is done, list of files:

1. First we have the component html, basic version of Ionic 2 alert html, the most important difference is in `[ngClass]="{'busy': isBusy}"`.
2. Then we have the scss, this is a very important part, as we hide the component with transitions and show it only when need it, take a look about the transition of the `z-index`, that's very important.
3. Lastly but the most important is the JS, take care to understand the logic, i use `rxjs/subject` in order to pass events from anywhere in the app to the component through the injectable, you could easily use the subscribe to pass a configuration object with the title, subTitle and message that should go in the busy component.

How to use:
Use it in your `app.html` under the `nav` component:

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busy-component.html

<div class="container centered" [ngClass]="{'busy': isBusy}" (click)="close()">
  <div tappable disable-activated class="backdrop" role="presentation"></div>
  <div class="alert-wrapper">
    <div class="alert-head">
      <h2 id="{{hdrId}}" class="alert-title" *ngIf="d.title" [innerHTML]="d.title"></h2>
      <h3 id="{{subHdrId}}" class="alert-sub-title" *ngIf="d.subTitle" [innerHTML]="d.subTitle"></h3>
    </div>
    <div id="{{msgId}}" class="alert-message" *ngIf="d.message" [innerHTML]="d.message"></div>
  </div>
</div>

busy-component.js

import {Injectable, Component, Input, EventEmitter} from 'angular2/core';
import {Subject} from 'rxjs/Subject';

import {IONIC_DIRECTIVES} from 'ionic/ionic';

@Injectable()
export class BusyCtrl {
  subject = new Subject()
  constructor() {}

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