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JavaScript Mobile Application Development
JavaScript Mobile Application Development

JavaScript Mobile Application Development: Create neat cross-platform mobile apps using Apache Cordova and jQuery Mobile

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JavaScript Mobile Application Development

Chapter 2. Developing Your First Cordova Application

In the previous chapter, you had a powerful introduction to Apache Cordova. In this chapter, you will develop, build, and deploy your first Apache Cordova application from scratch. The application you will develop is a Sound Recorder utility that you can use to record your voice or any sound and play it back. In this chapter, you will learn about the following topics:

  • Generating your initial Apache Cordova project artifacts by utilizing the Apache Cordova Command-line Interface (CLI)
  • Developing and building your mobile application from the initial Cordova generated code
  • Deploying your developed mobile application to a real Android mobile device to see your application in action

An introduction to Cordova CLI

In order to create, develop, build, and test a Cordova application, you first need to use the Cordova CLI. Using this, you can create new Apache Cordova project(s), build them on mobile platforms such as iOS, Android, Windows Phone, and so on, and run them on real devices or within emulators. Note that in this chapter, we will focus on deploying our Sound Recorder application in Android devices only.

Tip

In the next chapter, we will learn how to deploy our Sound Recorder application in iOS and Windows Phone devices.

Installing Apache Cordova

Before installing Apache Cordova CLI, you need to make sure that you install the following software:

Developing Sound Recorder application

After generating the initial application code, it's time to understand what to do next.

Sound Recorder functionality

The following screenshot shows our Sound Recorder page:

Sound Recorder functionality

When the user clicks on the Record Sound button, they will be able to record their voices; they can stop recording their voices by clicking on the Stop Recording button. You can see this in the following screenshot:

Sound Recorder functionality

As shown in the following screenshot, when the user clicks on the Playback button, the recorded voice will be played back:

Sound Recorder functionality

Sound Recorder preparation

In order to implement this functionality using Apache Cordova, we need to add the following plugins using the indicated commands, which should be executed from the application directory:

  • media: This plugin is used to record and play back sound files:
       > cordova plugin add https://git-wip-us.apache.org/repos/asf/cordova-plugin-media.git
    
  • device: This plugin is required to access the device information:
       > cordova plugin...

Building and running Sound Recorder application

Now, after developing our application code, we can start building our application using the following cordova build command:

> cordova build

In order to run the application in your Android mobile or tablet, just make sure you enable USB debugging in your Android device. Then, plug your Android device into your development machine and execute the following command from the application directory:

> cordova run android

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Downloading the example code

You can download the example code files for all Packt books you have purchased from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

Congratulations! After running this command, you will see the Sound Recorder application deployed in your Android device; you can now start testing it on your real device.

Tip

In order to learn how to enable USB debugging in your Android...

Summary

In this chapter, you developed your first Apache Cordova application. You now know how to use the Apache Cordova Device API at a basic level. You also know how to use the Media and File APIs along with jQuery Mobile to develop the Sound Recorder application. You now understand how to use Apache Cordova CLI in order to manage your Cordova mobile application. In addition, you know how to create a Cordova project, add a new platform (in our case, Android), build your own Cordova mobile application, and deploy your Cordova mobile application to the emulator, and most importantly, to a real device!

In the next chapter, we will show you how to prepare your Android, iOS, and Windows Phone development environments. Along with this, you will see how to make our Sound Recorder application works on Windows Phone 8 and iOS.

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Description

If you are a native mobile developer, with some familiarity with the common web technologies of JavaScript, CSS, and HTML, or if you are a web developer, then this learning guide will add great value and impact to your work. Learning how to develop mobile applications using Apache Cordova is of particular importance if you are looking to develop applications on a variety of different platforms efficiently.
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Oct 21, 2014
Length: 332 pages
Edition : 1st
Language : English
ISBN-13 : 9781783554171
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Table of Contents

9 Chapters
1. An Introduction to Apache Cordova Chevron down icon Chevron up icon
2. Developing Your First Cordova Application Chevron down icon Chevron up icon
3. Apache Cordova Development Tools Chevron down icon Chevron up icon
4. Cordova API in Action Chevron down icon Chevron up icon
5. Diving Deeper into the Cordova API Chevron down icon Chevron up icon
6. Developing Custom Cordova Plugins Chevron down icon Chevron up icon
7. Unit Testing the Cordova App's Logic Chevron down icon Chevron up icon
8. Applying it All – the Mega App Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.8
(4 Ratings)
5 star 75%
4 star 25%
3 star 0%
2 star 0%
1 star 0%
werpu Mar 01, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is a very good introduction into Apache Cordova. It basically guides you from the basics to the API integration, then to the most common APIs. After that you get an overview on how to unit test the application and how to write your own plugins and in the end you will get a guide to the implementation of a complex Cordova app.The only thing I personally found missing was in the IDE section a description on how to integrated Cordova in the Android Studio instead of Eclipse, since Eclipse is on its way out in the Android area of programming.
Amazon Verified review Amazon
Zubin Wadia Nov 11, 2014
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Fabulous coverage of a powerful and mature cross-platform library. The book goes through the basics over the first five chapters, making sure native app developers aren't alienated by the diaspora of HTML5/CSS3 web standards out there. A web developer will find that the book truly gets into its stride via the 5th, 6th, 7th and 8th chapters - which cover advanced Cordova API calls, platform specific code for iOS/Android/WinPhone, unit testing (critical) and finally a "Mega App" that puts your knowledge through some practical pacing.
Amazon Verified review Amazon
Safwat Oct 24, 2014
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The book is an easy and comprehensive guide to whoever is interested in multi platform mobile development with examples it shows the full life cycle of developing mobile cordova apps.
Amazon Verified review Amazon
Joan Aug 23, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Se ven la mayoría de APIs disponibles, pero no se aprofundiza en ellas. Simplemente va mostrando ejemplos de cada una y te explica que hace cada cosa.Muy bueno como introducción para hacerse con el workflow de trabajo en Cordova y sus APIs más típicas.
Amazon Verified review Amazon
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