Hiding the master view controller with UISplitViewController in iOS8

ios8, objective-c, swift, uisplitviewcontroller

Solution

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.

Problem

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?

Original source

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