Peter's corner on software developmentj2me

Contact sorting - Contact List, Part 3

Fri, 22 May 2009 15:28:00 GMT

This is the final part of my little tutorial/coursework re-do, where I will show you how easily can stored contacts be organised.

Some of you may know that RecordStore works on base of LIFO - Last In, First Out approach. For example if record has been added in the order: peter, marta, bruno, mark they will be read out of RecordStore in reversed order as: mark, bruno, marta, peter. To get contacts sorted, there are two options; either try to put contacts in order every time new contact is added or, try to put them in order once they read out from RecordStore, just before they get displayed on screen. The first option is overkill as it is just too much work for application to perform each time new record is stored and pretty much useless (read all records, add new record in correct position and overwrite previous data), so second option is the obvious choice.

GUI design - Contact List, Part 2

Mon, 18 May 2009 17:42:00 GMT

First task is to come up with user interface design. As the template of what I expect to have I previously mentioned I will use component layout from Sony Ericsson W910. Traditionally once user is inside main menu, set of 3 x 4 icons, and select Contacts the screen view will presents list of all contacts plus on top of it there is "New contact" option (on real device there is also "Myself" to create personal business card, but for the moment we can ignore that).

Designing Address Book - Contact List, Part 1

Sun, 26 Apr 2009 07:14:00 GMT

As at the present time I have some spare time I decided to look over my past university assignments and see what can be improved. In this case I will back into my J2ME assignment from University of Westminster that goes some like this: