[MacRuby-devel] Dynamic refresh in a view - xcode 4 / MacRuby

Thomas R. Koll info at ananasblau.com
Tue May 24 22:50:44 PDT 2011

Laurent is right and and I think best would be for you to use a NSTimer.

def drawWord
  if !next_word
  self.label.stringValue = next_word
  self.setNeedsDisplay true

def next_word

self.timer = NSTimer.scheduledTimerWithTimeInterval( 1/20.0,
  target:self, selector:"drawWord:", userInfo:nil, repeats:true)

Am 25.05.2011 um 02:06 schrieb azzzz at gmx.net:

> I have a label that I have set to blank, and after a user clicks 'go' I generate a random word or number and use:
> self.label.stringValue = "some_word"
> to update the view.
> However, I would like to show 200 or so random words in quick succession before the final one is shown - just because it's too plain at the moment. Alternatively, I'd be happy with showing an animated graphic in its place - which is replaced by the final random word after a few seconds.
> I've tried things like:
> 100.times do
> num = rand(40)
> self.label.stringValue = num
> sleep 1
> end
> But it doesn't work. I've also (after googling) tried .reloadData but to no avail as well.
> Any ideas on how to achieve this? Or pointers on how to add animations to my window/views?

Thomas R. "TomK32" Koll, Ruby/Rails freelancer
http://ananasblau.com | http://github.com/TomK32

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