On Jul 27, 2013, at 7:53 PM, [email protected] wrote: > I just tried both approaches and guess which one stays right there with the > menu bar clock and which one lags? > dispatch timer is the winner. > And it's not doing a lot. > > I built a test app for each approach to verify.
Is it possible there's a difference in how you're doing the math in the two cases, such that the NSTimer case might be firing *early* rather than late? Say the first NSTimer fires a little before the time you intended -- for example, it fires at 00:36.9999 instead of 00:37. Your UI will not get around to displaying the 37 until possibly a whole second later, depending on how you set up the firing of the next timer. If I were using an NSTimer approach I might set it to fire at .001 past the second just to be sure I don't get caught by rounding error in my floating-point math. --Andy _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
