OK… sorry about the inflammatory title, but it really does feel like MS has been coasting since it came out with its first mobile software release. I’ve used Windows Mobile on two Dell Axim revs and two cellphones. Instead of feeling like each new OS revision was an upgrade, it just felt like the same thing with a few more applications included and a few more options in settings. Before that I went through almost every model of the Apple
Author Archive
How long will it take to understand Rails 3 in and out?
According to David Heinemeier Hansson, you will never understand it all. Case in point? David himself.
That was the gist of his answer to how a new change to the way rails 3 renders actions in the browser would be handled for older browsers.
DHH gets involved in the parts he cares about and doesn’t worry about the exact details that have been delegated to someone else. He says we should not worry about knowing the whole framework because he doesn’t either.
iPad influencing the tablet market
My first thought on seeing this image today was “wow… Steve Jobs looks really small now behind his big iPhone”. Fortunately, this isn’t a case of Steve shrinking, it’s the mobile computer that got bigger.
I believe there is a lot of potential for the Apple tablet and I’m excited to write software for it. I was a little bit disappointed with the realization that it is also a closed device…
Linux kiosk
I recently did some maintenance on a linux-based kiosk project. It runs linux and has a rails application serving content. Firefox is running in a kiosk mode and there is no keyboard or mouse present.
In adding a touchscreen from a different vendor, I found some details that can help make a kiosk application more responsive to touchscreen taps.
If you use linux in a touchscreen implementation, I recommend staying away from linux drivers offered by the vendor if possible. These were
Turning technologies upside down: exchanging web and embedded approaches
I’ve posted about working in Rhomobile to develop for embedded platforms. This work has been progressing and we’re seeing the platform mature as developers are pushing its limits.
This is a platform that has code snippets that look like rails. An entire page for listing several firefighter rotations for example can be as simple as:
<div>
<h1 id=”pageTitle”>Rotations</h1>
</div>
<ul id=”rotations” title=”Rotations” selected=”true”>
<a href=”/app/Rotation/new” target=”_self”>New</a>
< % @rotations.each do |rotation| %>
<li>< %= link_to rotation.name, :action => :show, :id => rotation.object %></li>
< % end %>
</ul>
Now, contrast this
Xcode won’t recognize iPhone OS 3.0.1
If you see a message like “The version of iPhone OS on (your phone’s name) does not match any of the versions of iPhone OS supported for development with this copy of Xcode” after the 3.0.1 update, the quick fix is to run in a shell:
sudo ln -sf 3.0\ \(7A341\) /Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0.1
And then restart Xcode and reconnect the device. A long discussion about this at technolosophy.
Over-the-air calendar synchronization for iPhone
I’m very impressed so far with nuevasync.com for their over-the-air calendar synchronization. They have free and pay options. You set them up as an MS Exchange server data source and your contacts and calendar are synchronized with google. I love being able to edit calendar items with a full keyboard and also keep my existing workflow for using google to manage my calendar.
Native iPhone look in rhomobile
Rhomobile provides great instant gratification in building applications. See my last article for a starter.
There are some elements you’ll miss as you start to work on the iPhone target. The back button is one and the custom tab bar is another.
The main bar can currently be customized by building rhodes from source (the way I did in the previous post). Open platform/iphone/rhorunner.xcodeproj in Xcode and
processing large xml data files
XML is often used to convey very large data sets. A perfect example is wikipedia’s data. The full wikipedia datasets are available in several different slices.
This dataset is about 24GB uncompressed for all articles in English. This is an excellent set to push the limits on your parser. Clearly, you can’t load a file like this into memory to process it. To handle a
Rhomobile 1.2 for iPhone, android, blackberry, win mobile
We’ve been evaluating the Rhodes platform, aka Rhomobile, as a way to deliver multiplatform applications to our customers. Version 1.2.1 was recently released.
One thing that is clear right away is the development platform problem. Develop on OSX if you need to work on iPhone and Android ports. Use Windows if you plan to release for Android, Windows Mobile, and Blackberry. For most multiplatform deployment combinations you’ll need to switch back and forth, use windows in a vm, etc.
Back on OSX,
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