Book Image

Hybrid Mobile Development with Ionic

By : Gaurav Saini
Book Image

Hybrid Mobile Development with Ionic

By: Gaurav Saini

Overview of this book

Ionic is an open source, front-end framework that allows you to develop hybrid mobile apps without any native-language hassle for each platform. It offers a library of mobile-optimized HTML, CSS, and JS components for building highly interactive mobile apps. This book will help you to develop a complete, professional and quality mobile application with Ionic Framework. You will start the journey by learning to configure, customize, and migrate Ionic 1x to 3x. Then, you will move on to Ionic 3 components and see how you can customize them according to your applications. You will also implement various native plugins and integrate them with Ionic and Ionic Cloud services to use them optimally in your application. By this time, you will be able to create a full-fledged e-commerce application. Next, you will master authorization, authentication, and security techniques in Ionic 3 to ensure that your application and data are secure. Further, you will integrate the backend services such as Firebase and the Cordova iBeacon plugin in your application. Lastly, you will be looking into Progressive Web Applications and its support with Ionic, with a demonstration of an offline-first application. By the end of the book, you will not only have built a professional, hybrid mobile application, but will also have ensured that your app is secure and performance driven.
Table of Contents (9 chapters)

Offline currency converter PWA

We have looked into what exactly PWA and service-workers are, now let's build a PWA application using Ionic. We will be implementing an offline currency converter, which according to the network state fetches the latest data from or from the cache or storage data. The application will have a listing of currency conversion rates according to base currency.

Firstly, we will start a new Ionic 3 application using Ionic CLI and install the NPM package for @ionic/storage:

$ npm install --save @ionic/storage

We will be running it using Ionic serve, which will host it on the 8100 port. Now as discussed in our last section, we will uncomment the service worker code in the index.html file in the src folder.

In our application, we have mainly two views, HomePage and ListPage. Other than that we will be using two provider classes, currency-service and storage-service, for calling...