ios - Multiple swift animations in parallel not working -

ios - Multiple swift animations in parallel not working -

i have code animating elements (total of 3) in view.

element in elements{ if element.value != radians { uiview.animatewithduration(0.99, animations: { element.transform = cgaffinetransformmakerotation(cgfloat(radians)) }, completion: { finished in element.value = radians }) } }

when 2 or more elements should animated (uiview.animatewithduration called 2 or more times 1 after another), 1 animating , animation quite choppy. know should write in animation block, can't figure out how it. please help me.

just set loop within animation block.

uiview.animatewithduration(0.99, animations: { element in elements { if element.value != radians { element.transform = cgaffinetransformmakerotation(cgfloat(radians)) } } }, completion: { _ in element.value = radians })

ios animation swift