Thursday, December 17, 2009

Single Jar theory

This month there was a Sun Tech Days event at São Paulo, Brazil.
I could not be there, but I am thankful they shared the slides.

The only presentation about Java ME was JavaME: Building Cool Interfaces with the Lightweight UI Toolkit (PDF document). I think there are also other cool things on Java ME, but the event is a lot smaller than Java ONE and there was more interesting stuff on Java Standard and Enterprise. A Java ME event? Lets hope there will be a new Java Mobile, Media & Embedded Developer Days - Latin America.

Back to the presentation. At slide 26 there is this interesting suggestion about Easy deployment with One JAR.
I think this is the right way of thinking, but the presentation is about LWUIT being the answer.

I advocate the Adaptive User Interface for some time now and agree it is hard to achieve with only LCDUI and Canvas.
But I do not like the LWUIT overhead. To me 50K is still too much (slide 78).

My applications are small ones (below 15k) and I will keep them this way.
They focus on one feature and try to do it right: with good user experience.

Will I ever use LWUIT? Maybe. I might need an specially difficult UI - very hard to implement from scratch - and end up using this toolkit.
But I will first try doing it with Canvas (slide 19). If I can not do it this way I will still have learned something from it.

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Tuesday, December 15, 2009

Blog audience

Since 26 April 2009 I am following this blog statistics with Google Analytics and it had 566 visiting users (855 pageviews).
There are days days when I do not have a single visit, but it usually goes from two to six a day.
The most interesting part of the statistics for me is the Map Overlay, where we can see from which part of the wordl the visits came from.
Below is the world map with all 54 countries that have visited this blog and the number of visits for each.

The top 10 countries are:


  • Brazil: 255

  • United States: 56

  • India: 32

  • Portugual: 22

  • Poland: 21

  • Germany: 18

  • Sweden: 10

  • United Kingdom: 9

  • Turkey: 8

  • Russia: 8


It is natural to me to see so many visits from Brazil as I am Brazilian and have metioned this blog where I lecture and also at Brazil JUGs.
If you have a blog or a site you should really use some analytics tool.
It is very satisfaying to see all these different visits on the world map.

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Monday, December 14, 2009

Books 1.3

Last week I have posted all changes I made for Books version 1.3, they are listed below on Related Topics.
I also updated my blog entry on Books.
But the first place I notified the world about this version was on
this tweet update.

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