Download Palm webOS by Mitch Allen PDF

By Mitch Allen

A word from the writer and from O'Reilly Media approximately what this bookdoes--and doesn't--do:

Palm webOS is a new platform and represents a truly varied sort ofoperating approach the place the net runtime is used because the foundation for the UI andApplication version. Palm and O'Reilly felt that it was once very important to have abook to be had to aid builders get a uncomplicated figuring out of the recent Palmplatform on the time that the SDK was once published; this timing performed a majorrole within the content material and constitution of the book.

Ideally this booklet may were an entire reference of the hot platformbut that wasn't attainable because the content material used to be written while asthe software program SDK used to be being built via the Palm engineering workforce. The bookdoes supply an entire review of Palm webOS, a radical description ofthe program version and provides info on many key layout ideas. Thereare descriptions and examples of UI widgets, providers, storage,notifications, dashboards and history functions, serving as a greatintroduction yet now not as a definitive source.

The e-book makes use of an easy information reader program to demonstrate the technicaldescriptions however the examples usually are not meant to function a cookbooktutorial. skilled builders will be capable of use the examples to buildup a operating program bankruptcy by means of bankruptcy yet others won't locate theloose descriptions sufficient for recreating the applying unaided. additional time, those assorted wishes could be crammed by way of different books, yet in themeantime we are hoping that this e-book will serve a important function introducingdevelopers to webOS and giving them a manner of having begun with webOSapplication development.

A moment printing of the e-book will replace any unique insurance obsoleted bysubsequent Mojo SDK builds. For proprietors of the unique printing of the book,all of those updates are published at the "View/Submit Errata" hyperlink (please seeleft-hand column of this net page).

Thanks for realizing that e-book publishing and insurance of quickly movingtechnologies can occasionally be an inexact technological know-how; we knew there'd be a needfor a publication reminiscent of Palm webOS: The Insider's advisor to DevelopingApplications in JavaScript utilizing the Palm MojoT Framework, and there'scertainly no greater individual to write down that ebook that Mitch Allen; that said,we remember the fact that since it is this kind of new working method and SDK, therewould (and will stay) adjustments that at top cannot be documented andexplored until eventually new printings of the books are published. meanwhile wewill be diligent in posting updates to this book's O'Reilly Media catalogpage.


This is the legitimate consultant to development local JavaScript purposes for Palm's new cellular working approach, Palm® webOS™. Written by means of Palm's software program leader know-how officer in addition to the Palm webOS improvement workforce, Palm webOS presents a whole educational at the layout rules, structure, UI, instruments, and prone essential to advance webOS applications-including the Mojo JavaScript framework and Palm's SDK.

Palm webOS is designed to help a quick and marvelous person event utilizing verified net criteria, so in case you are conversant in HTML, CSS, and JavaScript, you are ready to construct purposes for any webOS-based machine, together with the Palm Pre. you are going to achieve services, bankruptcy through bankruptcy, as you construct a operating cellular software during the process the booklet. you will additionally easy methods to expand present internet apps to paintings with the recent iteration of cellphones.

  • Get a radical assessment of the webOS platform and architecture
  • Understand the severe strategies for program layout: what separates webOS from different internet and cellular platforms
  • Learn the main points of Mojo's improvement instruments and SDK for construction and checking out cellular applications
  • Examine top practices, vital concerns, and guiding rules for constructing with webOS and the Mojo framework

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Additional info for Palm webOS

Example text

6 kernel, with a combination of open source and Palm components providing user space services, referred to as the Core OS. You won’t have any direct interaction with the Core OS, nor will the end users. Instead your access is through Mojo and the various services. Users interact with applications and the UI System Manager, which is responsible for the System UI. Collectively, this is known as the application environment. Figure 1-11 shows a simplified view of the webOS architecture. Figure 1-11.

Strict JSON parser; this file must follow all the rules for correct JSON. png as the icon for your application. Application icons should be 64 × 64 pixels, encoded as a PNG with 24 bit/pixel RGB and 8 bits alpha. The icon’s image should be about 56 × 56 pixels within the PNG bounds. 28 | Chapter 2: Application Basics Refer to the webOS style guidelines found in the SDK documentation for more information about icon design. html is the first page loaded when a webOS application is launched. html, but you do need to load the Mojo framework here.

A set of the News wireframes is shown in Figure 2-1. This shows the main scene of the News application with a featured story in the top third of the screen. This is a text scroller widget encapsulated with a base div style called palm-group-title. Below the feature story area is the feed list widget, which serves as an index of the selected feeds. At the top of the scene is a search field built with a filterlist widget, which is hidden until some text is keyed, at which point the entered text will be used in a keyword search of the entire feed database.

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