Remove space before left button on Navigation bar in IOS7? - iphone

Question

I can implement navigation bar and add left bar button, but before left button have space, please ask how to remove this space in ios 7.

Answer 1

use this it will work i have used it and works fine on iOS 7 also
UIBarButtonItem *homeButton = [[UIBarButtonItem alloc] initWithCustomView:segmentView];
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
target:nil action:nil];
negativeSpacer.width = -6;// it was -6 in iOS 6 you can set this as per your preference
[self.navigationItem setLeftBarButtonItems:[NSArray arrayWithObjects:negativeSpacer,homeButton, nil] animated:NO];

Answer 2

You could use a system .fixedSpace UIBarButtonItem.
Here is a swift version producing the expected result (iOS 10+):
let negativeSpacer = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil)
negativeSpacer.width = -20 // working on iOS 10.
let barButton = UIBarButtonItem(title: "<# title #>", style: .plain, target: <# target #> , action: #selector(<# action #>))
navigationItem.leftBarButtonItems = [negativeSpacer, barButton]
Another idea is to add a UIButton to the UINavigationController.view directly.

Answer 3

We can add customize left bar button of navigation bar, but before left button have space. I fix this issue as following,
Calling:
// MyViewController.m
- (void)viewDidLoad {
UIBarButtonItem *bbBack = [Utilities overrideBackBarButtonItemWithTarget:self action:#selector(btnBackTapped:)];
}
- (void)btnBackTapped:(id)sender {
//Custom navigation back bar button item
}
Add this class method to your Utilities class or any common class for your project,
Implementation:
// Utilities.h
#interface Utilities : NSObject
#pragma mark - back bar button item
+(UIBarButtonItem*)overrideBackBarButtonItemWithTarget:(nullable id)target action:(nullable SEL)action;
#end
// Utilities.m
#implementation Utilities
+(UIBarButtonItem*)overrideBackBarButtonItemWithTarget:(nullable id)target action:(nullable SEL)action {
// back button
UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 65 , 44)];
[btn setImage:[UIImage imageNamed:#"back"] forState:UIControlStateNormal];
btn.imageEdgeInsets = UIEdgeInsetsMake(0, -15, 0, 15);//move image to the right
[btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barbuttonBack = [[UIBarButtonItem alloc] initWithCustomView:btn];
//navigation spacer
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
spacer.width = -15;// it was -6 in iOS 6 you can set this as per your preference
//set leftBarButtonItems
UIViewController *_self = (UIViewController*)target;
[_self.navigationItem setLeftBarButtonItems:[NSArray arrayWithObjects:spacer,barbuttonBack, nil] animated:NO];
return barbuttonBack;
}
#end
Back image:
back.png