Book Image

Ionic 2 Cookbook - Second Edition

By : Hoc Phan
Book Image

Ionic 2 Cookbook - Second Edition

By: Hoc Phan

Overview of this book

Developing real-time apps is the need of the hour, and apps that deal with humongous amounts of user data and real-time information that needs to be updated frequently are in high demand. Currently, one of the most popular frameworks for this task is Ionic Framework, which is undergoing a major makeover. This book will get you started with Ionic and help you create Angular 2 components that interact with templates. From there, you’ll work with Ionic components and find out how to share data efficiently between them. You’ll discover how to make the best use of the REST API to handle back-end services and then move on to animating the application to make it look pretty. You’ll learn to add in a local push notification in order to test the app. You’ll work with Cordova to support native functionalities on both iOS and Android. From there, you’ll get to grips with using the default themes for each platform as well as customizing your own. Finally, you’ll see how best to deploy your app to different platforms. This book will solve all your Ionic-related issues through dedicated recipes that will help you get the best out of Ionic.
Table of Contents (16 chapters)
Ionic 2 Cookbook Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a shared service to provide data to multiple pages


When you develop an app that involves a lot of pages and communication to the backend, you will need to have a way to communicate across the pages and components. For example, you may have a service to request user data from the backend and store it in a common local service. Then, you will need to provide a way for the user to update their user data and see the update in real time. When the user navigates to different pages, the same information will be pulled and rendered as well without making multiple trips to the backend. This is a very common scenario that requires the use of the @Injectable decorator in Angular 2.

Observe the following screenshot of the app you will build:

The user can fill out the form and see updates above it in real time. Then, they can move to the next page (Go to Page 2) and see the following screenshot:

This page uses the same service as the preceding page and references the same date with the name and...