ios - 我应该怎么办？在 SpriteKit swift 中它说 : Type 'GameScene' does not conform to protocol 'GKGameCenterControllerDelegate' ?

Question

我正在 SpriteKit swift 中编码，直到收到此错误消息:“类型‘GameScene’不符合协议(protocol)‘GKGameCenterControllerDelegate’”。我应该怎么办？错误出现在表示类 GameScene 的行上。 (错误不是我没有右括号，因为我的右括号在下面，我没有显示):

import SpriteKit
import GameKit
import UIKit
import GoogleMobileAds
struct PhysicsCategory {
static let Enemy :UInt32 = 0x1 << 0
static let SmallBall : UInt32 = 0x1 << 1
static let Mainball :UInt32 = 0x1 << 2
}

class GameScene: SKScene, SKPhysicsContactDelegate, GKGameCenterControllerDelegate,GADBannerViewDelegate {

    var Mainball = SKSpriteNode(imageNamed: "MainBall")
    var redmain = SKSpriteNode(imageNamed: "white")
    var greenmain = SKSpriteNode(imageNamed: "white")
    var darkred = SKSpriteNode(imageNamed: "white")
    var orange = SKSpriteNode(imageNamed: "white")
    var yellow = SKSpriteNode(imageNamed: "white")
    var lightblue = SKSpriteNode(imageNamed: "white")
    var blue = SKSpriteNode(imageNamed: "white")
    var purple = SKSpriteNode(imageNamed: "white")
    var pink = SKSpriteNode(imageNamed: "white")
    var origin = SKSpriteNode(imageNamed: "white")

Answer 1

你需要在某处实现这个方法

gameCenterViewControllerDidFinish(_:)

查看苹果文档 here