I had the same problem implementing this category:
// UINavigationBar+CustomHeight.m
//
// Copyright (c) 2014 Maciej Swic
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import "UINavigationBar+CustomHeight.h"
#import "objc/runtime.h"
static char const *const heightKey = "Height";
@implementation UINavigationBar (CustomHeight)
- (void)setHeight:(CGFloat)height
{
objc_setAssociatedObject(self, heightKey, @(height), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (NSNumber *)height
{
return objc_getAssociatedObject(self, heightKey);
}
- (CGSize)sizeThatFits:(CGSize)size
{
CGSize newSize;
if (self.height) {
newSize = CGSizeMake(self.window.bounds.size.width, [self.height floatValue]);
} else {
newSize = [super sizeThatFits:size];
}
return newSize;
}
@end
The method [super sizeThatFits:size] was returning the wrong size so adding the following line after the super method will fix it.
newSize.width = self.window.bounds.size.width;
Seems that the storyboard views auto includes the category, thats why add it programatically works.