March 2009
Intermediate to advanced
482 pages
11h 41m
English
Content preview from Java ME on Symbian OS: Inside the Smartphone ModelBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 4. Handling Diversity
Walking into a mobile phone retail shop and looking around is a good way to appreciate the enormous diversity of devices and what different people want to do with them. There are devices that are used with one hand and devices that have touch screens; screens can be large or small; some devices have more than one screen; some have built-in GPS; and the list could go on. Symbian OS provides a common platform for many devices and families of devices, which ensures consistency of behavior and functionality for users and gives developers a common and consistent development platform across many models. For example, devices using S60 5th Edition, S60 3rd Edition, UIQ 3.1, and UIQ 3.3 all have a large common base.
The prevalence of Java ME on mobile phones has resulted in many Java ME implementations, which in turn have resulted in fragmentation. A common problem in Java ME on feature phones is that there are many implementations, each with its own set of supported JSRs, implementation defects, specification interpretations, optional features, implementation gaps, and so on. The story of Java ME on Symbian OS is fundamentally different. Having a single common Java ME platform for S60 5th Edition, S60 3rd Edition, UIQ, and other Symbian OS UI platforms considerably reduces the problems that plague other platforms, resulting in diversity differences rather than fragmentation.
Realistically, it is hard to find two families of Symbian smartphones that are completely ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.