ios - 如何在 iOS 中一键更改 UIViewController？

Question

我将其放入我的 ViewController1 类中，但代码返回了错误:

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    super.touchesBegan(touches, withEvent: event)
    let vc: ViewController2 =  ViewController2(nibName: "ViewController2", bundle: nil)
    self.presentViewController(vc, animated: true, completion: nil)
}

我的代码有什么问题吗？

Answer 1

由于您的 Storyboard 上没有第二个 UIViewController，因此请实例化一个并呈现它。我已将 secondViewController 的 backgroundColor 更改为红色，这样您就可以实际看到 View 之间的过渡。

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

    let secondViewController = UIViewController()
    secondViewController.view.layer.backgroundColor = UIColor.redColor().CGColor
    self.presentViewController(secondViewController, animated: true, completion: nil)
}