ios - Want to make rotating button which I can press while animating -

i've made rotating button. while button rotates can't press it. question how can make "pressable"? animation code is:

  var max: bool = true    func startanimation() {      max = !max     let duration: double = 1     let fullcircle = 2 * m_pi       let upordown = (max ? cgfloat(-1 / 16 * fullcircle) : cgfloat(1 / 16 * fullcircle))     let scale: (cgfloat, cgfloat) = (max ? (1.0, 1.0) : (1.3, 1.3))      uiview.animatewithduration(duration, animations: { () -> void in        let rotationanimation = cgaffinetransformmakerotation(upordown)       let scaleanimation = cgaffinetransformmakescale(scale)       self.startbutton.transform = cgaffinetransformconcat(rotationanimation, scaleanimation)        }) { (finished) -> void in         self.startanimation()     } 

so if press button there no effect has happened. no text inside button text animation - nothing! button keep rotating , don't perform segue other scene. if no animation can segue.

use animation option uiviewanimationoptionallowuserinteraction.

uiview.animatewithduration(duration, delay:, options: uiviewanimationoptions.allowuserinteraction, animations: , completion: )