ios - 有没有办法分配不 UIModalTransitionStyle？

Question

我知道有四种类型的UIModalTransitionStyles，但我不想使用其中任何一种。

但是，此代码不起作用：

@IBAction func button(sender: AnyObject) {

    let modalView = ViewController()

    let storyboard = UIStoryboard(name: "Universal", bundle: nil)
    let vc = storyboard.instantiateViewControllerWithIdentifier("ViewController") as UIViewController
    modalView.modalTransitionStyle = nil // Error: type 'UIModalTransitionStyle' does not conform to protocol 'NilLiteralConvertible'

    self.presentViewController(vc, animated: true, completion: nil)

}

每当我不指定 时modalTransitionStyle，编译器都会modalTransitionStyle从 Storyboard 文档中获取UIViewController.

如何设置 no modalTransitionStyle？

Answer 1

如果您不想要过渡，则应在呈现新视图控制器时将该animated属性设置为。false

self.presentViewController(vc, animated: false, completion: nil)