I was using iOS 6.1 earlier, but now I have moved to iOS 7. Along with other problems, I have observed that in my navigation bar, the left space of left bar button item and right empty space of the right button bar item are quite more in IOS 7 than in iOS 6.
I need to know is there a way I can reduce empty spaces of left, right bar button items in navigation bar??
I was also facing this problem. I also have feelings that in iOS 7 there is more space. And I figured out that this is about 10 points more. I usually use negative spaces when I want for LeftBarItemButton to start from the edge. This can be useful for you as well.
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
negativeSpacer.width = -16; // it was -6 in iOS 6
[self.navigationItem setLeftBarButtonItems:@[negativeSpacer, requiredButton]; /* this will be the button which you actually need */] animated:NO];