xcode - Rotate UIImageView 1 degree -


i have code rotate image view:

func rotateagain(){     uiview.animatewithduration(1.0,         delay: 0.0,         options: .curvelinear,         animations: {self.imageview.transform = cgaffinetransformrotate(self.imageview.transform, 1.degreestoradians)},         completion: {finished in if self.rotating { self.rotateonce() }}) }

what wrong in code?

the second argument cgaffinetransformrotate angle, in radians, if want transform radians degrees, have multiply angle in degrees 0.0174532925

example rotating 240 degrees:

cgaffinetransformrotate(self.imageview.transform, 240 * 0.0174532925)

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