Hiding the master view controller with UISplitViewController in iOS8
Use preferredDisplayMode
. In didSelectRowAtIndexPath
or prepareForSegue
:
self.splitViewController?.preferredDisplayMode = .PrimaryHidden
self.splitViewController?.preferredDisplayMode = .Automatic
Unfortunately the master view abruptly disappears instead of sliding away, despite the documentation stating:
If changing the value of this property leads to an actual change in the current display mode, the split view controller animates the resulting change.
Hopefully there is a better way to do this that actually animates the change.
The code below hides the master view with animation
UIView.animateWithDuration(0.5) { () -> Void in
self.splitViewController?.preferredDisplayMode = .PrimaryHidden
}
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.