有没有办法不分配UIModalTransitionStyle？

Question

我知道有四种类型的UIModalTransitionStyles,但我不想使用它们中的任何一种.

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)

}

每当我没有指定时modalTransitionStyle,编译器就会modalTransitionStyle从Storyboard文档中获取UIViewController.

我怎么能设置不modalTransitionStyle？

Answer 1

如果您不想进行转换,则应在显示新视图控制器时将animated属性设置为false.

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