ios - 呈现的模态视图 Controller 未像表单一样显示

Question

我是 iOS 编程新手。我正在学习如何在 iOS 中使用模式。我有一个按钮。内部按钮点击处理程序。我想显示一个 UIViewController，如模态窗体。

这是我的代码:

@IBAction func userEditClick(sender: AnyObject) {

    let userCtrl = UserEditViewController(nibName: "UserEditViewController", bundle: nil)
    userCtrl.callback = self

    userCtrl.modalPresentationStyle = UIModalPresentationStyle.FormSheet
    //userCtrl.preferredContentSize = CGSizeMake(400, 800);

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

}

显示了 UserEditViewController 但屏幕看起来像普通的 UIViewController -> 这不是我所期望的 ---> Form Modal

谢谢!

Answer 1

您只需调用 presentViewController。这样就可以了。 presentViewController 的默认动画是模态的。此外，当您看到文档时，它说该设置将适应环境。所以我认为当您使用 iPhone 时，FormSheet 必须覆盖整个屏幕。我想你可能会坚持苹果的默认行为。

In a horizontally regular environment, a presentation style that displays the content centered in the screen. The width and height of the content area are smaller than the screen size and a dimming view is placed underneath the content. If the device is in a landscape orientation and the keyboard is visible, the position of the view is adjusted upward so that the view remains visible. All uncovered areas are dimmed to prevent the user from interacting with them.

In a horizontally compact environment, this option behaves the same as UIModalPresentationFullScreen.

Available in iOS 3.2 and later.

好吧，如果你想在 iPhone 或 iPad 上显示类似的表单，你需要计算大小并用你制作的动画显示它们并将它加载到你的 View Controller 上。

或者您可以查看此存储库 https://github.com/m1entus/MZFormSheetController他们做了困难的部分:)