方法不覆盖任何方法从它的超

Question

我试图创建一个新的覆盖FUNC当我得到这个错误：从它的父类方法不覆盖任何方法

我已经尝试删除重写部分但那只会给我另一个错误。

override func touchesBegan(touches: NSSet!, withEvent event: UIEvent!) { 

    let touch : UITouch! = touches.anyObject() as! UITouch 

    location = touch.locationInView(self.view) 

    person.center = location 
} 

override func touchesMoved(touches: NSSet!, withEvent event: UIEvent!) { 

    let touch : UITouch! = touches.anyObject() as! UITouch 

    location = touch.locationInView(self.view) 

    person.center = location 

} 

Answer 1

正确的方法签名是：

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) { 

} 

override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) { 

}