How can I change titles of Wheel with new titles after completed the spin?

[EfraimB]

If you want to change the titles on the Wheel you may trigger a redraw by calling setNeedDisplay on your wheel. So basically you will want to do something like this:

self.spinningWheel.startAnimating(fininshIndex: 5) { (finished) in
                let slices = [ CarnivalWheelSlice.init(title: "New title"),
                               CarnivalWheelSlice.init(title: "New title"),
                               CarnivalWheelSlice.init(title: "Test")]
                self.spinningWheel.slices = slices
                self.spinningWheel.setNeedsDisplay()
}