CODEWITHSUNDEEP
iosiphoneuikit
amroc
amroc

Reputation: 11

Force UINavigationBar to overlay container below instead of pushing it down

I was just wondering if there is a simple way to specify whether a UINavigationBar should overlay its content when shown. I currently have a UINavigationController that contains a custom UIViewController with a UIScrollView, which contains a UIPageViewController (I wanted a zooming/scrollable UIPageViewController).

When I call:

[self setNavigationBarHidden:NO animated:YES];

From within my UINavigationController, the UINavigationBar animates in, but pushes the custom container with all its content down, instead of overlaying it.

The bar is set to translucent and I've tried all the settings I can think of. I changed the extendEdges settings in the child view controllers and that resized the content when the navigation bar came in, instead of pushing it down. But I still can't work out how to get it to overlay instead.

Many thanks.

Upvotes: 0

Views: 321

Answers (1)

amroc
amroc

Reputation: 11

Ok, apologies. This just reveals how little I know about iOS programming...

I noticed that the container's view origin y value was -44. So adding the following within my container class:

- (void) viewDidLayoutSubviews
{
    CGRect boundsRect = self.view.bounds;
    boundsRect.origin = CGPointMake(0, 0);
    self.view.bounds = boundsRect;
}

Results in the view staying at the top of the screen, so the UINavigationBar overlays it nicely when it appears.

EDIT: Actually the proper way appears to be just calling:

 self.automaticallyAdjustsScrollViewInsets = NO;

Upvotes: 1

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