UINavigationController - showing the UIToolbar and increasing its height

Question

Based on what I have read on various posts on here, this should make my UIToolbar 200px taller than the default 44.

- (void)viewDidLoad
{

    [self.navigationController setToolbarHidden:NO animated:NO];
    CGRect toolbarFrame = self.navigationController.toolbar.frame;
    toolbarFrame.size.height += 200;
    toolbarFrame.origin.y -= 200;
    self.navigationController.toolbar.frame = toolbarFrame;
}

However, its rendering at the standard 44 when the view loads. What am I doing wrong?

I want the height to be 200 pts up , so I figured the origin needed to be higher — fansonly, May 18 '14 at 01:25
I would expect that increasing the height by 200 and decreasing the originY by 200 would result in a bar that is 244 points tall but has its bottom at the same location. — CrimsonChris, May 18 '14 at 01:28
Exactly, otherwise increasing its height would move it off of the screen by 200px. — fansonly, May 18 '14 at 01:30
No, decreasing its origin by 200 points is what's moving it offscreen. — CrimsonChris, May 18 '14 at 01:31
Maybe this will help you understand. http://stackoverflow.com/questions/5361369/uiview-frame-bounds-and-center — CrimsonChris, May 18 '14 at 01:34
Ok ,but even if I make it 500 bigger, it doesn't change the appearance. Nothing seems to have an effect. — fansonly, May 18 '14 at 01:36
And I've always thought the parent frame's origin is 0,0 - so decreasing the y factor moves it up the screen, not down. — fansonly, May 18 '14 at 01:39
I was making the (probably incorrect) assumption that your toolbar was at the top. — CrimsonChris, May 18 '14 at 01:44
sorry, no. The UINavigationController has a toolbar view (not visible by default) that shows up on the bottom of the view. — fansonly, May 18 '14 at 01:45

score 0 · Answer 1 · answered May 18 '14 at 02:12

0

The docs say that you can't directly modify UIToolbar attached to the UINavigationController.

I ended up creating a new one and adding it to the subview.

answered May 18 '14 at 02:12

fansonly

1,150
4
14
29

UINavigationController - showing the UIToolbar and increasing its height

1 Answers1