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

azzzz at gmx.net azzzz at gmx.net
Wed May 25 18:15:01 PDT 2011


Hey guys - thanks for the tips.

I must be really thick as I couldn't get it to work.... but... I managed to work something out by just creating a new thread for the loop - and it seems to be working ok *grin*

Thanks again for your help!

Aston


On 25 May 2011, at 21:28, Laurent Sansonetti wrote:

> Just one minor detail, the NSTimer callback method accepts an argument (which is a reference to the NSTimer object). So it should be:
> 
>  def drawWord(sender)
>>  end
> 
> If it works otherwise, then it's pure luck :)
> 
> Laurent
> 
> On May 24, 2011, at 10:50 PM, Thomas R. Koll wrote:
> 
>> Laurent is right and and I think best would be for you to use a NSTimer.
>> 
>> def drawWord
>> if !next_word
>>   self.timer.invalidate
>>   return
>> end
>> self.label.stringValue = next_word
>> self.setNeedsDisplay true
>> end
>> 
>> def next_word
>> ...
>> end
>> 
>> 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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>> MacRuby-devel at lists.macosforge.org
>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> 
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