Download Building Android Apps with HTML, CSS, and JavaScript (2nd by Jonathan Stark, Brian Jepson PDF

By Jonathan Stark, Brian Jepson

It’s precise: in the event you understand HTML, CSS, and JavaScript, you have already got the instruments you want to strengthen Android purposes. Now up-to-date for HTML5, the second one version of this hands-on consultant exhibits you the way to take advantage of open resource net criteria to layout and construct apps that may be tailored for any Android device.

You’ll the way to create an Android-friendly net app at the platform of your selection, after which use Adobe’s unfastened PhoneGap framework to transform it to a local Android app. notice why device-agnostic cellular apps are the wave of the longer term, and begin development apps that supply larger flexibility and a wider reach.

* Convert an internet site right into a internet program, whole with growth symptoms and different good points
* upload animation with JQTouch to make your net app feel and appear like a local Android app
* utilize client-side information garage with apps that run while the Android equipment is offline
* Use PhoneGap to hook into complex Android gains, together with the accelerometer, geolocation, and signals
* try out and debug your app on the net with actual clients, and publish the completed product to the Android marketplace

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Additional info for Building Android Apps with HTML, CSS, and JavaScript (2nd edition)

Sample text

Adding a Touch of Ajax The term Ajax (Asynchronous JavaScript and XML) has become such a buzzword that I’m not even sure I know what it means anymore. , to retrieve some HTML, submit a form). This approach makes for a very smooth user experience, but does require that you reinvent a lot of wheels. For example, if you are loading external pages dynamically, the browser will not give any indication of progress or errors to the users. Furthermore, the Back button will not work as expected unless you take pains to support it.

We’ll start with the most basic functional version of the code and improve it as we go along. If you’ve still got example files hanging around from Chapter 2, either move them out of the way or set up a new empty subdirectory on your web server to work in as you make your way through this chapter. html wrapper page is extremely simple (see Example 3-1). js. js in the same directory as the HTML file. js and what to do with it, see “Introduction to JavaScript” on page 11. You should do this now before proceeding further.

The logo link) and the primary and secondary site navigation. The first step is to format the logo link as a clickable title bar. , #header ul#utility, #header ul#nav): #header ul { list-style: none; margin: 10px; padding: 0; } #header ul li a { background-color: #FFFFFF; border: 1px solid #999999; color: #222222; display: block; font-size: 17px; font-weight: bold; margin-bottom: -1px; padding: 12px 10px; text-decoration: none; } Pretty simple so far, right? With this little bit of CSS, we have already made a big improvement on the Android page design (Figure 2-5).

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