Question

I have a very complex view hierarchy . Having a Master – Detail View Controller with UINavigation Controller in each section and each view controllers have their own UViews inside them. I have a overlay view which supports a buffer or a holder for Drag and Drop event . I want this view at the top of all my subviews irrespective of Hierarchy at any given point of time.

Is there a way so that I can place a UIView always on top.

Something like

   overlayView.alwaysOntop = YES;

I can manually use function like , bring subview to front , insert sub view above , below etc , but that makes my application very complex.

Answer 1

Have you tried adding the view as a sub view of the navigation view

[self.navigationController.view addSubView:yourView];

As long as you don’t add other subviews to your navigation controller view it should stay at the top of the hierarchy. You may have to move its position slightly too.