如何以编程方式从一个ViewController导航到其他，在Swift 2.0中没有Storyboard

Question

我有一个位于superview的按钮：

let buttonSignUp = UIButton()
self.view.addSubview(buttonSignUp)

当我按下此按钮时，我想转到另一个视图控制器场景。

Answer 1

首先添加按钮TouchUpInside-event并将其绑定到选择器

    buttonSignUp(self, action: "pressed:", forControlEvents: .TouchUpInside)

然后实现“按下”方法，如下所示：

func pressed(sender: UIButton!) {
    let vc = UIViewController()
    self.navigationController?.pushViewController(vc, animated: true)
}

这假设您的ViewController在NavigationController中！

如果您想要以模态方式呈现视图，可以执行以下操作：

 let vc = UIViewController()
 self.presentViewController(vc, animated: true) { () -> Void in
        //Here you can write code that you want to run WHEN the modal present is completed
 }