ios - How to increase the height of UINavigationBar? -

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simple question: how can increase height of navigation bar additional widgets fit in there while keeping blur?

examples calendar app weekday abbreviations added bottom of navigation bar...

calendar app

...and in mail when move mail different folder:

mail app

as ianurag post ans correct still have ui problem (width not proper)

can change size adding category below

sample project
download

code

#import "viewcontroller.h" @implementation uinavigationbar (customnav) - (cgsize)sizethatfits:(cgsize)size {     cgrect rec = self.frame;     cgrect screenrect = [[uiscreen mainscreen] bounds];     rec.size.width = screenrect.size.width;     rec.size.height = 70;     return rec.size; } @end

output
enter image description here
when press on "button" enter image description here

problem in ianurag code
enter image description here


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