Book Image

Mastering PhoneGap Mobile Application Development

By : Kerri Shotts
Book Image

Mastering PhoneGap Mobile Application Development

By: Kerri Shotts

Overview of this book

PhoneGap is a useful and flexible tool that enables you to create complex hybrid applications for mobile platforms. In addition to the core technology, there is a large and vibrant community that creates third-party plugins that can take your app to the next level. This book will guide you through the process of creating a complex data-driven hybrid mobile application using PhoneGap, web technologies, and third-party plugins. A good foundation is critical, so you will learn how to create a useful workflow to make development easier. From there, the next version of JavaScript (ES6) and the CSS pre-processor SASS are introduced as a way to simplify creating the look of the mobile application. Responsive design techniques are also covered, including the flexbox layout module. As many apps are data-driven, you'll build an application throughout the course of the book that relies upon IndexedDB and SQLite. You'll also download additional content and address how to handle in-app purchases. Furthermore, you’ll build your own customized plugins for your particular use case. When the app is complete, the book will guide you through the steps necessary to submit your app to the Google Play and Apple iTunes stores.
Table of Contents (19 chapters)
Mastering PhoneGap Mobile Application Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Correcting input lag


As should be obvious, we can't eliminate all of the input lag. There's always going to be some present. What we can eliminate are those frustrating times when it doesn't immediately appear as if the device has understood our intent.

Because mobile devices rely on touch and generally have pretty small screens, gestures are the primary input mechanism. Also, because we like to do a lot of things with the data on the screen, apps tend to recognize several gestures. Tapping is the obvious gesture, but while browsing a web page, the double-tap-to-zoom gesture is also often used. Because our hybrid app lives within a web view, it inherits the same double-tap-to-zoom gesture, which is often problematic. How many apps have you seen that let you zoom in on their user interface elements? Not many, if any at all.

This double-tap-to-zoom gesture comes with a problem: at first, it appears no different than a single tap on the screen. This means that the web view has to wait some additional...