// Tutorial //

    Implementing a Loading Indicator in Ionic 2

    Published on November 2, 2016
      Default avatar
      By Alligator.io
      Developer and author at DigitalOcean.
      Implementing a Loading Indicator in Ionic 2

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      Ionic 2’s LoadingController allows to create an overlay indicator that appears while the app is doing something in the background. It’s a great way to indicate to the user that the app is working. Here’s how to implement it.

      First you import LoadingController from ionic-angular:

      import { LoadingController } from 'ionic-angular';
      

      Then you inject LoadingController in your component’s class constructor:

      constructor(public loading: LoadingController) {}
      

      And now let’s create a loading controller in the ionViewLoaded() lifecycle hook available in Ionic 2, for when the page loads. Notice how the Loading Controller returns a promise, so then() can be called on it:

      ionViewLoaded() {
        let loader = this.loading.create({
          content: 'Getting latest entries...',
        });
      
      
      

      The dismiss() method on the loader makes sure that we remove it when the app is ready.

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      About the authors
      Default avatar
      Developer and author at DigitalOcean.

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