swift - GameScene 分享按钮

Question

我的游戏已经准备就绪，我唯一缺少(并想添加)的是向社交媒体分享标准消息的选项。我环顾四周，发现了不同的方法来做到这一点，但当我实现它们时，它们似乎都不起作用。我有一种感觉，我做错了可能很简单!

这是我的按钮:

func createShareButton() {
    shareButton = SKSpriteNode(imageNamed: "shareBtn")
    shareButton.size = CGSize(width: 240, height: 55)
    shareButton.position = CGPoint(x: self.frame.width / 2, y: (self.frame.height / 2) - 150)
    shareButton.zPosition = 6
    self.addChild(shareButton)
    shareButton.run(SKAction.scale(to: 1.0, duration: 0.3))
}

这是按下按钮时的代码(在我的 GameScene.swift 文件中):

let vc = self.view?.window?.rootViewController
                let myText = "share test message!"
                let activityVC:UIActivityViewController = UIActivityViewController(activityItems: [myText], applicationActivities: nil)
                vc?.present(activityVC, animated: true, completion: nil)

当我点击按钮时，控制台出现错误:

Warning: Attempt to present <UIActivityViewController: 0x149d4e880> on <MyGame.initialVC: 0x149d0fe90> whose view is not in the window hierarchy!

有什么地方出错了吗？

提前致谢!

Answer 1

我两天前遇到了同样的问题。我用这个 stackoverflow answer 修复了它

我不断收到同样的错误，这是因为 rootViewController 不是层次结构中的当前顶级 viewController。当我想让 viewController 控制当前的 SKScene 时，它​​试图使用我的初始 viewController。

希望对你有帮助

    func shareGame() {
        if var top = scene?.view?.window?.rootViewController {
            while let presentedViewController = top.presentedViewController {
                top = presentedViewController
            }
            let activityVC = UIActivityViewController(activityItems: ["I am playing Crashbox! Check it out."], applicationActivities: nil)
            activityVC.popoverPresentationController?.sourceView = view 
            top.present(activityVC, animated: true, completion: nil)
        }
    }