在iOS8中使用UISplitViewController隐藏主视图控制器 [英] Hiding the master view controller with UISplitViewController in iOS8

问题描述

我有一个基于Xcode主从模板的iOS7应用程序，我正在移植到iOS8。一个已经发生了很大变化的领域是 UISplitViewController 。

在纵向模式下，如果用户点击了详细视图控制器，主视图控制器被解除：

如果用户点击一行，我还希望能够以编程方式隐藏主视图控制器。

在iOS 7中，主视图控制器显示为弹出窗口，可以隐藏如下：

  [self.masterPopoverController dismissPopoverAnimated：YES]; 
  

对于iOS 8，主服务器不再是popover，因此上述技术无效。 / p>

我试图解雇主视图控制器：

  self .dismissViewControllerAnimated（true，completion：nil）
  

或告诉拆分视图控制器显示详细信息视图控制器：

  self.splitViewController？.showDetailViewController（bookViewController！，sender：self）
  

但到目前为止还没有任何工作。任何想法？

解决方案

按如下方式扩展UISplitViewController：

 扩展名UISplitViewController {
 func toggleMasterView（）{
 let barButtonItem = self.displayModeButtonItem（）
 UIApplication.sharedApplication（）。sendAction（barButtonItem.action，to： barButtonItem.target，from：nil，forEvent：nil）
} 
} 
  

在 didSelectRowAtIndexPath 或 prepareForSegue 中，执行以下操作：

  self.splitViewController？.toggleMasterView（）
  

这将顺利将主视图滑开。

我想到了使用这篇文章我按照这篇文章模拟了它。

我对此并不满意解决方案，因为它似乎是一个黑客。但它运作良好，似乎没有其他选择。

I have an iOS7 application, which was based on the Xcode master-detail template, that I am porting to iOS8. One area that has changed a lot is the UISplitViewController.

When in portrait mode, if the user taps on the detail view controller, the master view controller is dismissed:

I would also like to be able to programmatically hide the master view controller if the user taps on a row.

In iOS 7, the master view controller was displayed as a pop-over, and could be hidden as follows:

[self.masterPopoverController dismissPopoverAnimated:YES];

With iOS 8, the master is no longer a popover, so the above technique will not work.

I've tried to dismiss the master view controller:

self.dismissViewControllerAnimated(true, completion: nil)

Or tell the split view controller to display the details view controller:

self.splitViewController?.showDetailViewController(bookViewController!, sender: self)

But nothing has worked so far. Any ideas?

解决方案

Extend the UISplitViewController as follows:

extension UISplitViewController {
    func toggleMasterView() {
        let barButtonItem = self.displayModeButtonItem()
        UIApplication.sharedApplication().sendAction(barButtonItem.action, to: barButtonItem.target, from: nil, forEvent: nil)
    }
}

In didSelectRowAtIndexPath or prepareForSegue, do the following:

self.splitViewController?.toggleMasterView()

This will smoothly slide the master view out of the way.

I got the idea of using the displayModeButtonItem() from this post and I am simulating a tap on it per this post.

I am not really happy with this solution, since it seems like a hack. But it works well and there seems to be no alternative yet.

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