iphone - Objective C - Animation Blocks, multiparameters -

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i have question... how programmatically reached animation blocks? 

[uiview beginanimations:@"repositionanimation" context:nil];  // -----------------------------------------------------------------------------     [view setframe:viewrect];  [view setalpha:0];  ...  ...  // -----------------------------------------------------------------------------  [uiview commitanimations];

how messages stored , processed on commitanimations ???

i guess begin function invokes kind of holder messages, storing messages somehow , process them in loop ?

is there way work messages kind in argument lists???

you using animation proxy when call [uiview beginanimations:context:]. if want manage animations explicitly, use core animation. can monitor progress of view's layer periodically (using timer) checking layer's presentationlayer.


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