Accurate timing in iOS

Question

I am looking at the \'Metronome\' sample code from the iOS SDK (http://developer.apple.com/library/ios/#samplecode/Metronome/Introduction/Intro.html). I am running the metro

Answer 1

I'm very interested in this too, also noticed the fallacy of using NSTimer and the Metronome example.

I'm currently looking into CAMediaTiming Protocol...yet i have no idea how to use it, but it could prove to be a more precise solution as it's used for animations. I could also be completely wrong since games slow down when too much goes on. I'm basing my theory on my favorite game where precise timing is required when "fighting opponents on the streets". The game's fps has been reduced to 30 i think compared to its console counterparts which clocks at 60. Yet the game's combo system's timing is very crucial, e.g. a combo consists of hitting a button then another one exactly 3 frames later, so either:

• the game on the iOS is more forgiving on timing
• the developers implemented their own timing system
• else they're using the Metronome's timer loop or the CAMediaTiming protocol.

Info on timing in animations is found here: http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/Animation_Types_Timing/Articles/Timing.html#//apple_ref/doc/uid/TP40006670-SW1