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Daily: UIWebView to PDF
Very technical and short today. Did you know that it’s super dead easy to create a PDF from the contents of a UIWebView by just using built in Cocoa technologies? Turns out, it is!
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Daily: The first ten seconds
Ten seconds. That’s how much time your app has to make a first impression. I just made this number up, but I don’t believe that it’s any less or much more – certainly not 30 seconds or even a minute.
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Daily: Write ugly code.
Write ugly code. Use two-char variable names like
xy, ignore retain cycles, block the main thread. -
Daily: Retina Jekyll
This blog is managed using Jekyll, an awesome, ruby-based static site generator. I like ruby and the idea of not having to manage a database for some static content, so the choice was easy to make. One thing that’s missing though was support for retina images. So I built a tiny plugin that gets the job done. Turns out that plugins for Jekyll are something very, very simple. My plugin just converts (using ImageMagick) a source image into two resolutions, one for retina with the
@2x-qualifier and a regular one. It looks like this:```ruby Jekyll::Hooks.register :site, :post_render do |post| Dir[”./img/original/”].each do |x| file = File.new(x) name = File.basename(x, “.”) ext = File.extname(x)
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Daily: Behavioral Patterns: State's the obvious.
When I was talking about behavioral patterns yesterday, I was just getting started. While the strategy pattern is great in some situations, the state pattern is useful in almost all situations where there is state.