I'm writing my own SplitViewController from scratch (i.e. by subclassing UIViewController
and not UISplitViewController
).
It has two sub-viewControllers (one for the left panel and one for the detail right panel), to which I need to send the appropriate messages (viewWillAppear, viewDidAppear, viewWillDisapppear and viewDidDisappear
).
I am already forwarding those messages when my custom SplitViewController receives them and it works fine. However I am struggling to figure out when to send them when any of the two sub-viewcontrollers is replaced by a new one, which also needs to receive those messages. I am adding the view of the new UIViewController
properly but the messages are not called adequately.
My initial approach was to call them in the setter of the sub-viewControllers, calling viewWillDisappear
to UIViewController
about to be released and viewWillAppear
to the new UIViewController
set, but this one is executed before viewDidLoad
and therefore I presume is wrong.
I have also seen that UIView has a method didAddSubview:
that might be useful to know when to call viewDidAppear
on the correspondent UIViewController
.
Any help would be much appreciated!