问题
I've studied examples of split view (like this one) and it works great. I just need one change of behavior. I would like to have both master and detail controller visible when user have iPad in portrait. It should work just like FB Messenger or Skype. Both controllers side-by-side and without able to hide master controller. How is it possible to do that? Thanks for help
Bonus question: Is it possible to somehow set behavior for iPad portrait be same like iPhone portrait? If I would change my mind and I would like to have detail in fullscreen and after tap on left navigation bar button I would have master view in fullscreen and without detail visible. Is i possible or split view decides that and there is not much what I can do about it?
回答1:
A UISplitViewController has a property called preferredDisplayMode. You can set this to any one of these values:
- UISplitViewControllerDisplayModeAutomatic
- UISplitViewControllerDisplayModePrimaryHidden
- UISplitViewControllerDisplayModePrimaryOverlay
- UISplitViewControllerDisplayModeAllVisible
You are looking for UISplitViewControllerDisplayModeAllVisible.
[self.splitViewController setPreferredDisplayMode:UISplitViewControllerDisplayModeAllVisible];
UISplitViewControllerDisplayModeAllVisible
The primary and secondary view controllers are displayed side-by-side onscreen.
Available in iOS 8.0 and later.
You can read more about the display modes here on Apple's documentation.
来源：https://stackoverflow.com/questions/33167006/uisplitviewcontroller-set-always-visible-master-controller-when