ios - CoreAnimation rotating an object and changing it's position at the same time -

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what i'm trying rotate view left , right , @ same time move it's position , down.

here's code have:

cgaffinetransform leftwobble = cgaffinetransformrotate(cgaffinetransformidentity, radians(-12.0)); cgaffinetransform rightwobble = cgaffinetransformrotate(cgaffinetransformidentity, radians(12.0));  flyingguy.transform = leftwobble;  // starting point  [uiview beginanimations:@"wobble" context:flyingguy]; [uiview setanimationrepeatautoreverses:yes]; [uiview setanimationrepeatcount:1000]; [uiview setanimationduration:1.3]; [uiview setanimationdelegate:self]; [uiview setanimationdidstopselector:@selector(wobbleended:finished:context:)];  flyingguy.transform = rightwobble; cgrect frame = flyingguy.frame; frame.origin.y += 10; [flyingguy setframe:frame];  [uiview commitanimations];   - (void)wobbleended:(nsstring *)animationid finished:(nsnumber *)finished context:(void *)context  {     if ([finished boolvalue]) {         uiview* item = (uiview *)context;         item.transform = cgaffinetransformidentity;     } }

with current code, view size changes moves or down. suggestions?

don't set or frame after have set transform!

from docs:

warning if transform property not identity transform, value of property undefined , therefore should ignored.

what should instead

change center property of view. changing position anyway , safe when have transform applied.


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