Usually you inject Nav:NavController into your classes constructor to use it:

But if you are working in a service you will receive the following error:

If you want to show alerts from within a service you are required to use the NavController.  To do so simply create the private field nav with type NavController. […]
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Setting up Ionic 2 with angular2-translate is pretty simple. But since there were a lot of changes in the recent time and most of the code examples provided in other blogs is already outdated i decided to describe the latest working approach. Currently i’m using angular2rc.1. Since Anuglar has reached RC status there should be […]
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Playing around with Ionic 2 i came to the following issue. I had a component where i’d like to automatically set the focus of an element after the view is loaded completely. The approach is similar to the AngularJS/Ionic1 one. We create a directive. But instead of using jQuery or jQuery Lite to set the […]
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