[MacRuby-devel] How to stop observing

[Dave Baldwin]

A common design pattern in cocoa seems to be to have a objc method along the lines:

 - (void)dealloc {
 
     // Stop observing the tool palette.
     [[NSNotificationCenter defaultCenter] removeObserver:self name:SKTSelectedToolDidChangeNotification object:[SKTToolPaletteController sharedToolPaletteController]];
     
     // Stop observing the document's canvas size.
     [[self document] removeObserver:self forKeyPath:SKTDocumentCanvasSizeKey];
 
     // memory management stuff removed...
 }

- taken from the Sketch sample.

One way to handle this would be to add a finalizer method to act in place of the the dealloc, but is this the best or correct way to handle this?

Thanks,

Dave.