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

Taking a photo using the camera plugin


For this section, you will make an app to take a picture using the device camera or load an existing picture from the device album. The picture could be either in the Base64 format or saved in a local filesystem relating to your app. The following is a screenshot of the app:

Here is the high-level process:

  • Access the Cordova camera plugin to trigger camera capture and get the image back in the Base64 or URI format

  • Parse the Base64 data or URI on an <img> DOM object

  • Display the URI if it's in the URI format

  • Capture an event of a toggle component

  • Display long data (for example, URI) using horizontal scroll

Getting ready

You should have a physical device ready in order to test the camera capability. It's possible to just run the code via an emulator, but the filesystem support might look different across the various platforms.

How to do it...

The following are the instructions to add camera support:

  1. Start a blank project (for example, MyCamera) and go to that...