如何在swift中使用模态视图？ [英] How to use modal views in swift?

问题描述

向Mail添加帐户（在首选项中）时，您会看到一个模态视图，如下所示：

When adding an account to Mail (in preferences), you get a modal view, like this:

我的问题是，如何以编程方式复制此代码？换句话说，如何在呈现视图上显示模态UIView？

My question is, how do I replicate this programatically? In other words, how do I display a modal UIView over a presenting view?

这是我所拥有的：

import UIKit


class ViewController: UIViewController {



@IBAction func addCard(sender: AnyObject) {
    var addContact : secondViewController = secondViewController()
    self.modalTransitionStyle = UIModalTransitionStyle.FlipHorizontal 
    self.modalPresentationStyle = .CurrentContext // Display on top of current UIView
    self.presentViewController(addContact, animated: true, completion: nil)
}
//Code goes on to do other unrelated things

此外，我已完成以下操作：

Also, I've done the following:

1. 在界面构建器中创建视图控制器。


2. 将BarButtonItem添加联系人连接到viewcontroller，通过按住Control键并单击，拖动到我想要显示的视图的viewcontroller，然后在下拉列表中选择modal 。


3. 将呈现的Viewcontroller的Class和StoryBoard UI设置为secondViewController。

预期行为是，当按下UIBarButtonAdd Contact（在上面的代码中成功触发 @IBAction func addCard（sender：AnyObject））时，secondViewController呈现为主视图上方的模态视图。

The expected behavior is that, when the UIBarButton "Add Contact" (which successfully triggers @IBAction func addCard(sender: AnyObject) in the code above) is pressed, secondViewController is presented as a modal view above the main view.

当我运行上面的代码时，我收到错误使用未声明的类型secondViewController

When I run the code above, I get the error "Use of undeclared type secondViewController"

我做错了什么？

注意：这是对一个早期的问题，其中我问了一个类似但略有不同的问题。我查看了 meta ，我认为是好的 - 我不想让原始问题的答案无效，因为这是在问一些稍微不同的东西。另外，如果它有帮助，我发现了一些类似的问题 - 在obj C中我如何在swift中做到这一点？

NOTE: This is a re-ask of an earlier question in which I asked a similar, but slightly different question. I checked on meta, and I think it is OK - I don't want to invalidate the answers on the original question, as this is asking something slightly different. Also, in case it helps, I found some similar questions - in obj C. How do I do that in swift?

推荐答案

试试这个：）

@IBAction func addCard(sender: AnyObject) {
        self.modalTransitionStyle = UIModalTransitionStyle.coverVertical 
        // Cover Vertical is necessary for CurrentContext 
        self.modalPresentationStyle = .currentContext 
        // Display on top of    current UIView
        self.present(secondViewController(), animated: true, completion: nil)
}

这篇关于如何在swift中使用模态视图？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！