CODEWITHSUNDEEP
iphoneobjective-cipaduinavigationcontrolleruinavigationbar
rano
rano

Reputation: 5666

How to correctly place a UINavigationBar in a complicate view hierarchy?

In an iPad app I'm working on I have this 'unusual' view hierarchy:

enter image description here

If I set mastercontroller not to show the UINavigationBar of the UINavigationController, the UI is fine (only the status bar is shown).

enter image description here

After I try to push the detailcontroller into the UINavigationController (this time I want the bar to be show), the navigation bar appears translated on y axis (it is frame shows that its origin is (0,20) and 20 is the height of the status bar, right?...)

And when I return to the mastercontroller, the bar is still there, translated. This is what I get:

enter image description here

Any clue on how can I solve this?

Upvotes: 0

Views: 444

Answers (2)

amattn
amattn

Reputation: 10065

The root of the problem is that you are mixing controller hierarchies with view hierarchies.

Assuming that maincontontroller is a normal view controller, I would move your uinavigationcontroller up to be its sibling. That way, you don't need to workaround anything.

If a UINavigationController doesn't have a parentViewController, it basically assumes it's in the window.

Upvotes: 2

rano
rano

Reputation: 5666

I found a solution. Like amattn said I had to simplify the hierarchy, but this can't be done so easily since I have the constraint to make the topview always visible and being able to rotate.

The idea is to subclass UINavigationController and to put the view and its management into this subclass. This way an instance of this new controller can be applied directly to the main window and other controllers can be pushed in it.

Upvotes: 1

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