方法不覆蓋任何方法從它的超

Question

我試圖創建一個新的覆蓋FUNC當我得到這個錯誤：從它的父類方法不覆蓋任何方法

我已經嘗試刪除重寫部分但那隻會給我另一個錯誤。

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

正確的方法簽名是：

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

} 

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

}