ios - Animate titleView on button click -

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i'm new animation in ios , i'm trying apply animation on titleview in navigationbar following code keep saying: 

cannot invoke 'animatewithduration' argument list of type '(floatliteralconvertible, delay: floatliteralconvertible, options: uiviewanimationoptions, animations: () -> () -> $t4, completion: (($t16) -> ($t16) -> $t15) -> (($t16) -> $t15) -> $t15)'

when remove 

self.navigationitem.titleview?.center = cgpointmake(10, 10)

there no error, how can apply animaiton on titleview/title?

@ibaction func animatebuttontapped(sender: uibarbuttonitem) {        uiview.animatewithduration(0.7, delay: 1.0, options: uiviewanimationoptions.curveeaseout, animations: {          self.navigationitem.titleview?.center = cgpointmake(10, 10)          }, completion: { finished in             println("basket doors opened!")     })   } 

uiview.animatewithduration(0.7, delay: 1.0, options:.curveeaseout, animations: {     // optional chaining may return nil     _ = self.navigationitem.titleview?.center = cgpointmake(10, 10)     // return     }, completion: {         finished in         println("basket doors opened!") })

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