PhoneGap Mobile Application Development Cookbook by Gifford Matt

By Gifford Matt

Over forty recipes to create cellular functions utilizing the PhoneGap API with examples and transparent instructions
* Use the PhoneGap API to create local cellular purposes that paintings on a variety of cellular units
* observe the local equipment beneficial properties and services you could entry and comprise inside of your applications
* jam-packed with transparent and concise examples to teach you the way to simply construct local cellular functions

In Detail

As increasingly more of our on-line lifestyles and day-by-day actions evolve into the cellular panorama it hasn't ever been of extra value to begin venturing into the area of cellular applications.

With PhoneGap, you could placed your current improvement abilities and HTML, CSS, and JavaScript wisdom to nice use via developing cellular apps for cross-platform devices..

"PhoneGap cellular program improvement Cookbook" will allow you to create local cellular purposes for a number of gadget systems utilizing the PhoneGap API. you'll discover ways to construct dynamic functions that engage with the local performance at the machine to create a wealthy, interactive adventure in your users.

This is a cookbook with each one part written as a recipe in a casual, pleasant kind. every one recipe comprises the entire code had to construct your purposes, and many screenshots displaying the finished tasks operating on units are incorporated to aid you.

"PhoneGap cellular software improvement Cookbook" will introduce the PhoneGap API to you in transparent, concise sections, breaking down each one recipe to accomplish sensible operating initiatives that may be utilized for your personal cellular applications.

You might be proven tips on how to use the cellular improvement framework to construct functions that may be deployed and run on a number of cellular systems together with iOS, Android, and BlackBerry.

This publication will discover a few of the equipment and capabilities on hand utilizing the API, and the way to put in writing code that interacts with the local services, together with geolocation sensors, contacts database, and local button occasions of the machine to create robust functions prepared for the industry place.

"PhoneGap cellular software improvement Cookbook" might help you holiday into the area of cellular program improvement. construct cellular functions in code you’re happy with, create a richer person event in your clients and develop into a part of the ever-growing cellular marketplace place.

What will you examine from this ebook
* construct your software to have interaction with real-time sensor data
* the right way to shop facts and cache information and content material utilizing HTML5 garage APIs
* entry the digital camera of the machine to create a unbroken multimedia workflow
* organize your PhoneGap cellular improvement environment
* imagine cellular: strengthen with measurement in brain utilizing light-weight JavaScript frameworks
* entry the touch database of your device
* increase your program through growing customized plugins outfitted utilizing customized local code
* Use HTML5 and CSS3 on your cellular applications


This cookbook comprises recipes with lots of instance code and is filled with screenshots to make the training curve more straightforward and quicker.

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Extra resources for PhoneGap Mobile Application Development Cookbook

Example text

WatchPosition( onSuccess, onError, options); } 8. With the initial call methods created, we can now write the onSuccess function, which is executed after a successful response. The position object from the response is sent through as an argument to the function. 9. Declare some variables to store detailed information obtained from the response in the form of the timestamp, latitude, longitude, and accuracy variables. We'll also create the element variable to reference the geolocationData div element, within which our information will be displayed.

Timestamp + '
' + 'Move Top: ' + y + 'px
' + 'Move Left: ' + x + 'px'; 14. Our call to the accelerometer also requires the error handler, so let's write that now. '; } 15. Finally, we'll add in some CSS to create the dot marker used to display the position on our device:

16. When we run the application, we can move the element around the screen by titling the device.

How to do it... We are able to pass through an optional parameter containing various arguments to set up an interval and improve accuracy: 1.

2. Below the Cordova JavaScript reference, write a new JavaScript tag block. Within this we'll declare a new variable called watchID. 3. addEventListener( "deviceready", onDeviceReady, false); 4. Let's now add the onDeviceReady function which will execute a method called startWatch, written as follows: // The device is ready so let's // start watching the position function onDeviceReady() { startWatch(); } 5.

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